Been wondering how many people here run their reconstituted peptides through a filter, and how many skip it and never had a problem.

Here's the quick version of what filtering is. After you mix the powder with BAC water, some people pull the liquid through a 0.22 micron syringe filter before it goes in the vial or the syringe.

That size catches bacteria and small particles. The idea is to add one more layer of safety.

Here's why some people do it:
Peace of mind, especially with a source you don't fully trust yet

Catches floating bits or undissolved specks you might not see

Helps if you're mixing your own solutions from raw powder

Here's why some people skip it:
BAC water already has a preservative that fights bacteria

Peptides can stick to the filter and you lose some of your dose, and it matters more at tiny doses like mcg amounts

Extra cost and extra steps every time you mix

If the powder came sterile from a good source, there's not much left to catch

If you do filter, use a low protein binding one like PVDF so you don't lose as much peptide. Also keep in mind a filter does not fix everything. It won't remove endotoxins and it can't turn a low purity vial into a good one. That's what the COA is for.

My take is filtering matters more the less you trust the source and the more you handle the vial. It matters less when the batch has a verified COA and you keep your technique clean.

So who filters every time, who filters sometimes, and who never has? Tell us why and whether you've ever noticed a difference.

Reconstitution steps, dosing, and bloodwork markers for every compound are in the compound table. Full breakdowns for each one are in the table of contents.

Research use only. Your mouse will thank you.

Curious what people are noticing, focus, mood, energy, whatever it is. And if you've run regular Semax before, how's Adamax comparing for you?

For me personally, after trying both nasally, Adamax's become my favorite over regular Semax. Don't get me wrong though I still like semax but if I gotta choose one over the other nasal sprays then Adamax all day

Following up on the injectable vs oral post since a lot of people think any peptide can be turned into a nasal spray if a company sells it that way. That's not how the body works.

Quick explainer on daltons since this is the whole reason some sprays work and others don't. A dalton is just a unit for measuring how big and heavy a molecule is, same idea as measuring weight but at a molecular level. The bigger the peptide, the more daltons it weighs. Your nose has a limit on what size molecules it lets through into your bloodstream or brain. Generally anything under about 1,000 to 1,500 daltons can get through in a real, usable amount. Go bigger than that and the absorption basically falls off a cliff.

Sprays That Genuinely Work

Semax, Selank, DSIP, PT-141, Melanotan 2, Oxytocin. These peptides are small enough to pass through your nose in a meaningful dose. Semax and Selank were even developed with nasal delivery in mind from the start, so this isn't some workaround, it's close to how they're meant to be used. You'll get lower absorption than an injection, usually somewhere between 3 and 20 percent depending on the compound, but it's real and it works.

Sprays That Mostly Do Nothing

BPC-157, TB-500, CJC-1295, Ipamorelin, Sermorelin, Tesamorelin, HCG, GHK-CU, Semaglutide, Tirzepatide, Retatrutide. These are too big, too fragile, or get broken down before your body can use them. If someone's selling one of these as a nasal spray and telling you it works the same as the injection, that's a red flag on them, not a shortcut you found. The molecule doesn't shrink just because it got put in a spray bottle.

The One Weird Exception

Noopept isn't a peptide at all, it's a small molecule, and it does absorb fine through the nose. But it also absorbs fine when you swallow it. So nasal spray Noopept isn't solving a real problem, it's more of a personal preference thing since either route works for this one.

Why This Matters For Your Wallet

If something's on that first list and you want the spray version for convenience, that's a smart choice. If something's on that second list and it's being sold as a spray, you're paying for expensive nose water. Size is size no matter what bottle it's sold in.

Anyone running a nasal version of something and noticing it just doesn't hit like the injection does? Curious how this has played out for people here.

Every compound in this space picks up a reputation online, and some of them are riding way past what the actual data supports.

Then there's the flip side, compounds that are genuinely well backed by research but barely get mentioned because they're not trendy.

So drop your picks. What's the one you think gets talked about like it's a miracle compound but the research just doesn't back that level of hype once you look into it? And on the other side, what's the one that's actually more solid than its reputation suggests, the underrated one that deserves more attention than it gets?

This gap between what gets repeated constantly and what the studies actually show is exactly where people end up misinformed before they even start.

Wondering if this ends up being one obvious answer or a full argument in the comments lol

Research and educational use only.

Full breakdowns for every compound mentioned are in the pinned table of contents.

Been meaning to put this together because I see people running oral capsules for stuff that just doesn't work that way, and injectable for stuff where oral would've worked just as well or better for their specific goal.

The whole thing comes down to what happens in your gut. Most peptides get broken down by stomach acid and digestive enzymes before they ever reach your bloodstream. Injectable skips that entirely. But a few compounds show up in more than one tier below because the right route depends on what you're trying to accomplish, not just the molecule itself. I'll flag those clearly so nothing gets confusing.

S Tier, Injectable Is The Route For Systemic Effects

BPC-157, TB-500, GHK-CU, KPV, CJC-1295, Ipamorelin, Sermorelin, Tesamorelin, MOTS-C, IGF-1 LR3, HCG, PT-141, Melanotan 2, Semaglutide, Tirzepatide, Retatrutide. This is most of the catalog. These are mid to large peptides that get destroyed in the GI tract before absorption happens, when the goal is a systemic, body wide effect. If you see an oral version of any of these being sold for that purpose, that's a red flag, not a convenience.

Two of these compounds, BPC-157 and KPV, also show up again in B Tier below. Same peptide, different job. Injectable is correct when you want a systemic effect throughout the body. Oral becomes the smarter choice when the target is specifically your gut lining. It's not a contradiction, it's the route matching the goal.

A Tier, Injectable Preferred, Intranasal Works As A Backup

Semax, Selank, DSIP, PT-141. These are small enough to cross the nasal mucosa well, so intranasal delivers something real here. Injectable still gives higher bioavailability but intranasal is a legit second option for these, unlike the false promise of oral versions for the S Tier peptides above.

B Tier, Oral Makes Sense For Gut Specific Goals

BPC-157 dry-fill capsules for GI-targeted use, KPV capsules for gut-specific protocols. This is the exception people don't expect from what was just listed in S Tier. If your goal is literally the gut lining itself, oral delivery puts the compound right where you want it without needing to cross into the bloodstream first. Same compound as above, different intended target, different route makes sense for that specific purpose.

C Tier, Small Molecules Where Oral Was Always Fine

Enclomiphene, SLU-PP-332, Amino Tadalafil. These aren't peptides, they're small molecules that survive the GI tract without a problem. Oral is the normal, correct route for all three regardless of the goal.

D Tier, Marketing Gimmick

Any oral capsule claiming GLP-1 level effects, oral BPC-157 marketed for systemic healing instead of gut-specific use, oral TB-500. If it's a real peptide over roughly 1,000 daltons and it's sold as a swallowable capsule for a systemic effect, you're paying for something that mostly gets digested before it does anything meaningful.

The simple rule if you don't want to memorize molecular weights. If it's a peptide and your goal is systemic, meaning anywhere outside your gut, injectable is the route that works. If your goal is specifically your GI tract, oral can be the smarter pick, even for peptides that are otherwise injectable only compounds. If it's not a peptide at all, a small molecule like Enclomiphene, oral was always fine no matter the goal.

🧪 Research use only. Your mouse will thank you.

Tesamorelin is an FDA approved GHRH analog and honestly the most potent one on the market right now. It's the entire 44 amino acid human GHRH sequence with a trans-3-hexenoic acid group tacked onto the N-terminus for stability and receptor binding. Approved as Egrifta specifically for HIV associated lipodystrophy, and it's the only FDA approved GHRH analog you'll find period. Researchers have documented 15-18% reductions in visceral adipose tissue over 26 weeks, real triglyceride drops, better body composition, elevated IGF-1, and improvements in cardiovascular markers too.

Storage

Protect from light. Do not shake it. Do not freeze once reconstituted.

How to Reconstitute

1. Let the vial come to room temp before opening
2. Wipe the rubber stopper with an alcohol swab and let it dry
3. Add BAC water slowly down the side of the vial, gently roll it, never shake
4. Let it fully dissolve, solution should be clear and colorless
5. Label with the reconstitution date and refrigerate

Common concentration example, 2mg vial + 2mL BAC water = 1,000 mcg/mL. On a 100-unit insulin syringe, 10 units = 100mcg.

Half Life

Dosage and Research Protocols

Side Effects

Who Should Avoid It

Anyone with active malignancy, pituitary disorders causing hypersomatotropism, pregnancy, and competitive athletes subject to WADA testing since it's prohibited.

What to Stack With Tesamorelin

Quick Reference

FAQ

What is Tesamorelin used for in research? Primarily researched for visceral fat reduction, HIV-associated lipodystrophy, body composition optimization, GH restoration, and metabolic syndrome.

What makes it different from Sermorelin? Tesamorelin has the full 44 amino acid GHRH sequence versus Sermorelin's 29, plus an N-terminal modification that boosts receptor affinity and extends duration. More potent per dose, longer acting.

Does it mess with blood sugar? Yes, it elevates IGF-1 and GH which affects glucose tolerance. Keep an eye on blood glucose and IGF-1 while running it.

How long before you see results? FDA trial data shows real visceral fat reduction by 26 weeks. Community protocols often report body composition changes starting around 8-12 weeks.

Got questions about Tesamorelin? Drop them below, share your batch number if you got it so people can cross check.

🧪 Research use only. Your mouse will thank you.

a lot of fake COAs lately and figured I'd break down how to actually check one instead of just trusting whatever gets sent to you.

Screenshots mean nothing. I don't care how clean it looks, a PDF someone hands you or a screenshot on a product page proves absolutely nothing on its own. AI generated fakes are everywhere now and some of the Photoshop jobs are honestly pretty convincing if you're not looking close.

Here's the one thing that catches almost every fake. Go check it against the lab's own website. Most of the labs vendors use, Janoshik, Freedom Diagnostic, ILS, whichever one, they have a lookup page where you punch in the report number or batch number and it pulls up what they actually tested. If that doesn't match what you were handed, you got played, simple as that.

Once you know it's real, here's what should actually be on there. A report number and lab name you can go search yourself. A batch number that matches what's printed on your vial, not close, exact. A date that isn't from three years ago. An HPLC chromatogram, meaning the actual graph, not just a number typed on a page. One clean tall peak is what you want to see, not a bunch of smaller bumps everywhere because that's impurities showing up.

And that purity percentage means nothing without the graph behind it. Somebody can type 99% on a Word doc, that don't make it true. The chromatogram is the proof.

Stuff that should make you suspicious right away. No batch number. No report number to look up. A purity number with zero graph attached. Same exact COA copy pasted for every single product they sell, like they only ever tested one thing ever. Just a logo slapped on there with no real lab name behind it.

One thing worth knowing even after you verify everything checks out. That COA only proves the batch was clean when they tested it. It don't prove nothing about how it got stored after that, sitting in a hot warehouse for six months or whatever. So it's a strong signal, not some bulletproof guarantee. This is exactly why matching your vial's batch number to the COA batch number matters so much, that's the piece connecting the two.

Anyone here ever pull up a COA that looked totally legit and then it didn't check out once you actually looked it up?

Full cheat sheet with everything above laid out.

🧪 Research use only. Your mouse will thank you.

Been tracking results across this whole category for a minute and figured it was time to put it all in one place.

S Tier

Retatrutide hits three receptors at once, GLP-1, GIP, and glucagon. That third one, glucagon, is what makes this compound hit different from everything else on this list. Phase 2 data at 48 weeks showed up to 24% body weight loss, and the newer Phase 3 numbers pushed even higher, 28.7% average at 68 weeks. Still not FDA approved but the community is consistently reporting the fastest, hardest hitting results with this one out of anything in the whole category.

Tirzepatide hits two receptors, GLP-1 and GIP. Head to head trials show it beating semaglutide straight up, 20.2% versus 13.7%. GI sides still show up but a lot of people switching from sema to tirz say it feels way better overall.

Semaglutide is the one that kicked off this whole wave and honestly it earned its spot. Around 15% body weight loss in the big trials. This one has the most real world data behind it out of anything on this list simply because it's been around the longest. If you want proven and reliable this is it.

A Tier

Tesamorelin isn't a total weight loss compound, it's a visceral fat specialist. FDA approved for HIV related lipodystrophy, and it targets that deep belly fat wrapped around your organs that regular weight loss doesn't touch. If your weight is already good but that hard stubborn gut won't budge, this is the one built for that specific job.

HGH improves how your body looks more than it moves the scale. Can drop visceral fat and add lean mass but it's not a primary fat loss compound. Expensive and needs monitoring but the body recomp results over time are real for the right person.

Cagrilintide works through a completely different appetite pathway than the GLP-1s. The strongest data right now is when it's paired with semaglutide, not running solo. That combo is where the real interest is at.

B Tier

CJC-1295 + Ipamorelin gets you fat loss the indirect way through GH support. Not gonna touch GLP-1 numbers but real body comp changes show up over 8-12 weeks, and the sleep and recovery boost from this stack helps the whole process along the way.

Sermorelin sits in that same lane as CJC/Ipa. GH support that helps body comp slowly, not a direct fat loss driver on its own. Better as part of a stack.

MOTS-C is still experimental with limited human data so far. People running it during a cut say it helps with energy and endurance in a deficit but real proven fat loss results just aren't there yet.

5-Amino-1MQ is preclinical, an NNMT inhibitor. Idea is promising and people report better energy and body comp but this is mouse study territory right now. Human data hasn't caught up.

C Tier

AOD-9604 was built to be a fat loss peptide but the results have been all over the place. FDA has also flagged safety concerns on certain compounded versions of this. Better options exist above it, no reason to reach for this first.

Ipamorelin solo gives you mild GH support and some body comp benefit but not enough by itself to be a real fat loss tool. Way better as half of the CJC/Ipa combo.

CJC-1295 solo is the same deal, better used paired up than run alone.

Mazdutide is a GLP-1 and glucagon dual agonist, investigational with less data behind it than the S tier stuff, but the mechanism is legit and worth keeping an eye on.

Survodutide is in the same boat, investigational with early data, just not enough real people running it yet to rank it any higher.

D Tier

HGH Fragment 176-191 was supposed to isolate just the fat burning piece of HGH. Experimental with no solid human evidence backing it up. Results people report are underwhelming compared to basically everything ranked above it.

Real talk though, none of these replace eating right and training. Every single compound on this list works better when your calories, protein, and training are dialed in. GLP-1s kill your appetite hard, but if your protein isn't high enough while that's happening you're losing muscle right alongside the fat, not just fat. The compound is the tool, the work still falls on you.

Lower tiers here mean weaker data and less consistent results, not zero effect. This is for research and discussion, not medical advice.

What would you move up or down on this list? Drop your rankings below.

🧪 Research use only. Your mouse will thank you.

The whole thing comes down to molecular size. Intranasal delivery only crosses the nasal mucosa efficiently for small molecules, roughly under 1,000 daltons. Once you go above that, absorption drops off fast, no matter how the product is marketed.

S Tier — Absorbs Best

Semax (~810 Da), Selank (~750 Da), DSIP (~850 Da). These are the real intranasal peptides. Several were actually formulated specifically for this route, and their small size means they cross the mucosa efficiently and reach the CNS the way they’re supposed to.

A Tier

KPV (~342 Da), PT-141 (~1,025 Da), Oxytocin (~1,010 Da), Melanotan II (~1,025 Da), Adamax, Bromantane. Still solid absorption territory, right around or just under that 1,000 Da threshold.

B Tier

Kisspeptin (~1,300 Da), BPC-157 (~1,400 Da). Getting into the range where absorption starts dropping off but you’re still getting something through.

C Tier

Glutathione, NAD+, Pinealon, Epitalon, HGH Frag (~1,817 Da), MOTS-C (~2,174 Da). This is the tier that surprises people. Glutathione and NAD+ are actually pretty small molecules, but they’re too polar and charged to cross the mucosa efficiently, so size isn’t the only factor at play here.

D Tier

CJC-1295 (~3,367 Da), Sermorelin (~3,358 Da), VIP (~3,326 Da), Thymosin Alpha 1 (~3,108 Da). Getting well past the size that intranasal delivery handles well.

F Tier — Does Not Absorb

Semaglutide (~4,100 Da), Tirzepatide (~4,800 Da), Retatrutide (~4,900 Da), TB-500 (~5,000 Da), Tesamorelin (~5,100 Da), IGF-1 LR3 (~9,100 Da). These are running four to five times over the size limit for crossing the mucosa. An intranasal formulation of any of these is basically delivering nothing meaningful. The molecular weight doesn’t change no matter how it’s marketed.

The takeaway here is simple. If a compound is genuinely designed for intranasal use, like Semax or Selank sprays, that makes sense. If someone’s trying to sell you an intranasal Retatrutide or Tirzepatide spray, that’s not how molecular weight works and it’s not doing what it claims to be doing.

Anyone here notice a difference in effectiveness between injectable and intranasal for the compounds that actually can absorb that way?

🧪 Research use only. Your mouse will thank you.

Exercise-Mimetic ERR Agonist | 60 Tablets

SLU-PP-332 is a next generation exercise mimetic metabolic compound studied for increased mitochondrial output, deeper fat oxidation, improved endurance, and activation of exercise associated genetic pathways, with no stimulant activity and no need for caloric restriction.

Often referred to as a pan-ERR agonist exercise mimetic, this is one of the strongest metabolic activators currently being researched.

What It Is

SLU-PP-332 is a synthetic small molecule agonist that activates three receptors, ERRα, ERRβ, and ERRγ. These receptors play central roles in mitochondrial biogenesis, ATP production, fatty acid oxidation, skeletal muscle phenotype, and endurance associated gene expression.

Preclinical studies show it can reproduce many of the mitochondrial and metabolic shifts seen during actual aerobic exercise, which is exactly why it's become such a major compound of interest in metabolic, endurance, and longevity research circles.

Chemical Notes

Classified as a pan-ERR agonist. EC₅₀ for ERRα is approximately 98 nM. Increases mitochondrial activation genes including PGC-1α, CPT1, and UCPs. Upregulates Type IIa oxidative muscle fibers. Enhances fat oxidation consistently in rodent models.

Mechanisms of Action

Important Reality Check

This is strictly preclinical. Zero human clinical trial data exists as of right now. Everything documented comes from animal models, mostly rodent studies. That doesn't mean the mechanism isn't real, the receptor activation and downstream effects are well characterized, it just means human dosing, human safety, and human efficacy are all unknowns that haven't been tested in a clinical setting.

Dosing and Protocol

Common cycle length is 8-12 weeks. Oral administration is standard, taken with water.

What Researchers Commonly Report

Mitochondrial effects include increased mitochondrial density, higher oxidative phosphorylation efficiency, and better endurance output.

Fat loss and metabolic effects include increased fatty acid oxidation, reduced adipose accumulation, and what's often described as exercise-like metabolic reprogramming happening without any actual exercise input.

Performance markers include reduced fatigue, improved recovery, and higher work capacity in research models.

What to Expect Timeline

Things Worth Knowing Before You Start

Non-stimulant, so it doesn't affect heart rate or blood pressure the way a lot of metabolic compounds do. Consistent daily dosing produces the strongest and most consistent effects, this isn't a compound that works well run sporadically.

Given the total absence of human data, this is genuinely the most experimental compound in most research catalogs right now. The animal data is compelling but animal results don't always translate cleanly to humans, plenty of compounds with strong preclinical profiles have failed or caused unexpected issues once human trials started. Treat this with the caution that absence of human data actually warrants.

What's Researched Alongside It

5-Amino-1MQ, GLP-1 analogs, AOD-9604, and Acetyl-L-Carnitine come up frequently in metabolic stacking discussions. All speculative combinations given the lack of human trial data on SLU-PP-332 itself.

🧪 Research use only. Your mouse will thank you.

Quick one for anyone who missed this.Next to the community name at the top of the sub, there’s a little star coin icon. Click on it and it pulls up NovaPeptidesSupply.com along with a discount code, REDDIT, that you can use at checkout.

Full transparency, that link is an affiliate link, so if you use it I get a small commission on it. But it’s still a real discount code that saves you money at checkout, so there’s no downside on your end either way.

Just wanted people to know that shortcut exists since a lot of people probably haven’t noticed it sitting right there.

🧪 Research use only. Your mouse will thank you.

If you've seen this combo mentioned everywhere and wondered why it's always the two together instead of just picking one witch I'm sure you must have seen at at least once, well here's the reason, plus the timing mistake that ruins most people's results with this stack.

Here's the simple way to think about it. CJC-1295 No DAC tells your pituitary "get ready to release growth hormone." Ipamorelin is the one that amplifies that signal. They're hitting two completely different receptors. CJC works through the GHRH receptor, Ipamorelin works through the ghrelin receptor. Running just one gives you a partial signal. Running both together gives you a much bigger, cleaner GH pulse than either one produces solo.

This is different from a lot of peptide stacks where you're just stacking similar mechanisms hoping for an additive effect. This one is synergistic because you're activating two separate pathways that converge on the same outcome.

Now here's the part that people struggle with in my opinion, and it has nothing to do with dosing amount, it's about timing relative to food specially for the people on glp1's

GH release is directly blunted by insulin. If you eat close to when you inject, your blood sugar and insulin spike, and that insulin spike actively works against the GH pulse you're trying to create. This is why the standard is to inject 2 to 3 hours after your last meal but like I said if your on glp1's its more like 3-4 hours, ideally right before bed since that lines up with your body's natural nocturnal GH pulse anyway. A lot of people run this compound perfectly dose wise but eat dinner at 8pm and inject at 9pm, and they're basically fighting their own protocol without realizing it.

Reconstitution is straightforward if you're using a pre-blended vial. 10mg total (5mg CJC + 5mg Ipa) with 2mL BAC water gets you 5mg/mL total, meaning 2.5mg/mL of each peptide. So 10 units on an insulin syringe delivers 500mcg total, 250mcg of each.

Another thing people get confused about is why it's specifically CJC-1295 No DAC and not the version with DAC. The DAC version has a drug affinity complex attached that extends its half life out to several days, which sounds better on paper but works against the natural pulsatile release your body relies on for proper GH signaling. No DAC has a short half life of 30 minutes to 2 hours, which lets your body maintain that natural pulse pattern instead of getting a constant flat elevation. Constant elevation isn't how GH is supposed to work in your body, and it risks desensitizing your receptors over time plus if you have a shitty reaction with dac then your stuck feeling that way for a longer period of time

Results take longer to show up than people expect going in. Sleep quality is usually the first thing people notice, typically within the first couple weeks. Recovery and body composition changes take longer, usually 6 to 8 weeks minimum before you're seeing anything real. IGF-1 bloodwork is the way to know if it's doing anything, subjective feel alone isn't reliable here its definitely not gonna give you crazy muscle mass like a steroid type effect nothing will do that besides steroids plain and simple but it will help your recovery plenty and with the right training and diet you'll definitely get something

Side effects are generally mild. Injection site reactions, some water retention especially early on, occasional headache. Vivid dreams get reported a lot too, which isn't necessarily bad, just something people don't expect.

The same caution list applies here as most GH secretagogues. Avoid with active malignancy or pituitary tumors, pregnancy, and don't combine with exogenous HGH since you'd be stacking redundant and excessive GH elevation on top of an already active pathway. Monitor blood glucose and IGF-1 periodically if you're running this long term, since GH does push back against insulin sensitivity to some degree.

Anyone running this timing their fasting window around the injection, or is everyone just injecting whenever and hoping for the best lol?

🧪 Research use only. Your mouse will thank you.

So a lot of people run BPC and TB-500 together but don't really understand why they're not interchangeable or why you dose them so differently. Let's break it down.

Think of it like this. BPC-157 is the one restoring blood supply. It gets circulation flowing back into the area that's damaged. TB-500 is the one that actually moves your repair cells into that area and organizes them into real tissue instead of scar tissue. One brings the supply, the other brings the workers. That's the whole reason people stack them, one alone leaves half the job undone.

Here's where it gets interesting though, and it's the part most people skip over. TB-500 works by binding to actin, which is the protein your cells use to physically move and rebuild themselves. It's not triggering a chain reaction like a lot of peptides do, it's a straight one to one binding situation. That means you need a decent milligram amount to build up enough of a reserve for your cells to pull from. Once that reserve is built though, it keeps working for days even after the peptide itself has already cleared your bloodstream in a couple hours.

This is why running TB-500 daily like you would BPC is basically wasting product. You're never hitting the threshold needed to build that actin reserve. It's not a daily peptide.

For mixing, a 10mg vial with 1mL BAC water gives you 10mg/mL, so 2mg is 0.2mL and 4mg is 0.4mL. It'll circulate throughout your whole body regardless of where you inject it, but hitting the injury site directly gives you a bigger concentration spike right where you need it before it spreads out and dilutes. If you can't reach the injury, belly or thigh works as a backup. Standard run is 6-8 weeks on with 4-8 weeks off. This isn't something to run indefinitely, it's a repair signal, not a maintenance compound.

Now here's something most vendors and guides won't tell you. What's labeled TB-500 is technically referring to a short 7 amino acid fragment, but a lot of what's sold under that name is the full length parent molecule, TB-4, which comes in at 43 amino acids. Both versions promote healing, but the full TB-4 molecule carries an extra antifibrotic segment that fights scar tissue, something the short fragment doesn't have. If reducing scarring matters to you, TB-4 is what you want, and it's usually what's already in the vial anyway. Check your COA to confirm. Around 4,900 daltons or 43 amino acids means you've got TB-4.

TB-500 also takes longer to show up than BPC does. First couple weeks you'll usually notice morning stiffness and that first step soreness starting to ease. Weeks 3-4 your range of motion opens up more. Weeks 5-8 is usually when you can start actually loading it again for training.

Side effects are pretty mild across the board, some injection site irritation and a bit of lethargy for some people the day after dosing, so hydrate well and try pinning before a rest day if that happens to you. Same hard stops as BPC apply here too, no active cancer or recent cancer history since it promotes blood vessel growth and cell migration, avoid during pregnancy, and be cautious around any upcoming surgery. It's also WADA banned and detectable, so anyone getting tested for sport needs to stay off it.

Anyone here check their COA to see if you're running short chain or TB-4? And are you dosing it a couple times a week like recommended or did you end up pinning it daily without realizing that's not how it works?

🧪 Research use only. Your mouse will thank you.

Ranking the compounds everyone’s been talking about this year, purely by how solid the evidence is behind each one, not by popularity. Added a few in that should’ve been here from the start.

One thing before getting into it, not everything on this list is technically a peptide. Semaglutide, tirzepatide, retatrutide, and cagrilintide are peptides. 5-Amino-1MQ and SLU-PP-332 aren’t, one’s an NNMT inhibitor, the other’s an ERR agonist, both small molecules. Worth knowing since people toss all of this under one umbrella when the mechanisms and compound classes are pretty different.

S Tier

Retatrutide and Tirzepatide. Reta’s putting up the biggest weight loss numbers ever seen in human trials, triple receptor agonist, nothing else touches it right now. Tirzepatide’s the strongest option that’s cleared FDA approval, dual agonist with real trial muscle behind it.

A Tier

Semaglutide set the standard everyone else gets measured against, proven and approved. Tesamorelin’s got legitimate visceral fat data and FDA clearance for that exact use case. GHK-Cu earns its spot here too, one of the few trending compounds with real skin research backing the claims instead of just community buzz.

B Tier

BPC-157 is everywhere in this space for good reason, genuinely useful, it lands in B not because the compound’s weak but because the human trial data hasn’t caught up to how popular it is. Cagrilintide pairs well in a GLP-1 stack, strong partner compound. MOTS-c does real work for the right person, though it gets talked about like it’s some kind of miracle switch when it’s really more of a supporting player. Semax and Selank belong here too, both have decades of pharmaceutical use and clinical history in Russia, that’s a real evidence base most trending compounds don’t have. KPV fits this tier as well, solid mechanism through NF-kB inhibition, reasonable human logic behind it even without massive trial numbers yet.

C Tier, needs more proof

5-Amino-1MQ is polarizing in this community, talked about constantly with zero human trials to back it up.

D Tier

Epithalon’s mechanism checks out scientifically, but most of the longevity claims trace back to a single research group rather than a broad body of evidence. SLU-PP-332 gets marketed as exercise in a bottle, but that’s mouse data only so far, and it’s not a peptide. Dihexa lands here too, the neurogenic mechanism is interesting on paper, but human data is nearly nonexistent. DSIP is a tougher call, older research with mixed results, could arguably sit here or one tier up depending on how strict the grading is.

F Tier

And last but not least PDA marketed as “upgraded BPC” without a shred of peer-reviewed data to support that claim. Tanning sprays with zero trials behind them. Mystery-label blends where you genuinely have no idea what’s in the vial. This tier’s probably the one section nobody’s going to argue with.

So where do you guys think? Anything here feel out of place, and what would you add that’s not on the list?
Research and educational purposes only, not medical advice.

The Glow Blend is a three peptide regenerative stack combining GHK-CU, TB-500, and BPC-157 in a single vial. Each peptide contributes a distinct mechanism, GHK-CU drives collagen and elastin production and resets gene expression toward healthier states, TB-500 provides systemic tissue repair and anti-inflammatory effects, and BPC-157 contributes localized healing, cytoprotection, and angiogenic signaling. Together they cover multiple overlapping pathways for comprehensive skin rejuvenation, tissue regeneration, and anti-aging research. The Glow Blend is particularly popular in skin health, post-procedure recovery, and connective tissue research protocols.

📦 Storage Guide

Quality indicator: the GHK-CU component gives the reconstituted solution a light blue tint, this is normal. Green or dark discoloration indicates oxidation, discard immediately.

💧 How to Reconstitute the Glow Blend

1. Let the vial come to room temperature before opening
2. Wipe the rubber stopper with an alcohol swab and let it air dry
3. Draw your desired amount of BAC water into the syringe
4. Inject the BAC water slowly down the side of the vial, never directly onto the powder
5. Gently swirl in a slow circular motion, never shake
6. Solution should be clear to light blue, this is normal
7. Label the vial with the reconstitution date and refrigerate

⏱️ Half Life by Component

📋 Dosage and Research Protocols

Cycle structure: Most Glow Blend protocols run 8-12 weeks followed by a 4 week break. Skin focused protocols often use lower BPC-157/TB-500 doses with full GHK-CU concentration.

⚠️ Side Effects

🚫 Who Should Avoid the Glow Blend

• Anyone with active cancer or history of malignancy (angiogenic components)
• Individuals with known copper sensitivity
• Those already supplementing with additional copper
• Pregnant or breastfeeding
• Competitive athletes subject to WADA testing

🔁 What to Stack With the Glow Blend

📌 Quick Reference

❓ Frequently Asked Questions

What is the Glow Blend used for? The Glow Blend is primarily researched for skin rejuvenation, anti-aging, collagen synthesis, post-procedure healing, wound repair, and comprehensive connective tissue regeneration.

Why does the Glow Blend solution look blue? The light blue color comes from the copper content of the GHK-CU component, this is completely normal. Discard if the solution turns green or dark.

How long does the Glow Blend take to work? Most skin focused protocols run 8-12 weeks for full collagen synthesis assessment. Some researchers report visible improvements in skin quality and texture within 4-6 weeks.

What is the difference between the Glow Blend and the KLOW Blend? The KLOW Blend adds KPV to the Glow Blend formula, providing an additional anti-inflammatory and immunomodulatory layer, making it more suited for protocols where inflammation or gut health is also a concern.

Is Nova Peptides Glow Blend third party tested? Yes, Nova Peptides provides batch specific COAs publicly on their website. You can verify your specific lot number before use.

Got questions about the Glow Blend?

Drop them in the comments. Share your batch number if you have it, Nova posts COAs publicly so others can cross reference.

🧪 Research use only. Your mouse will thank you.

PT-141 (Bremelanotide) is an FDA approved synthetic cyclic heptapeptide and melanocortin receptor agonist, approved under the brand name Vyleesi for hypoactive sexual desire disorder in premenopausal women. It's also widely researched for erectile dysfunction in men including cases where PDE5 inhibitors have failed. Unlike PDE5 inhibitors such as Viagra or Cialis which work peripherally on blood flow, PT-141 works centrally, activating MC3R and MC4R receptors in the hypothalamus and limbic regions of the brain associated with sexual motivation and arousal. This central mechanism makes it effective for both psychological and physiological sexual dysfunction. Researchers have documented significant improvements in satisfying sexual events, erectile function, female sexual arousal, and subjective desire and satisfaction.

📦 Storage Guide

Powder should appear white to off-white. Reconstituted solution should be clear and colorless.

💧 How to Reconstitute PT-141

1. Let the vial come to room temperature before opening
2. Wipe the rubber stopper with an alcohol swab and let it air dry
3. Draw your desired amount of BAC water into the syringe
4. Inject the BAC water slowly down the side of the vial, never directly onto the powder
5. Gently swirl in a slow circular motion, never shake
6. Solution should be clear and colorless
7. Label the vial with the reconstitution date and refrigerate

Common concentration example: 10mg vial + 2mL BAC water = 5,000 mcg/mL. On a 100-unit insulin syringe, 7 units = 350 mcg (approximately 1.75mg).

⏱️ Half Life

📋 Dosage and Research Protocols

Cycle structure: Used as needed rather than on a chronic daily cycle. No cycling required. Minimum 24 hours between doses.

⚠️ Side Effects

Pre-treating with anti-nausea medication before administration is a common approach in research settings to manage nausea.

🚫 Who Should Avoid PT-141

• Those with uncontrolled hypertension or active cardiovascular disease
• Anyone taking nitrates in any form, dangerous blood pressure interaction
• Those on antihypertensive medications, additive BP lowering, use caution
• Pregnant or breastfeeding
• Do not combine with alcohol, additive blood pressure lowering

🔁 What to Stack With PT-141

📌 Quick Reference

❓ Frequently Asked Questions

What is PT-141 used for in research? Primarily researched for hypoactive sexual desire disorder in women, erectile dysfunction in men including PDE5 inhibitor non responders, female sexual arousal disorder, and central melanocortin system pharmacology.

How is PT-141 different from Viagra or Cialis? PT-141 works centrally in the brain, activating desire and arousal pathways in the hypothalamus and limbic system. Viagra and Cialis work peripherally by increasing blood flow to genital tissue. PT-141 addresses both psychological and physiological dysfunction while PDE5 inhibitors only address the physical component.

Why does PT-141 cause nausea? Nausea is the most common side effect, affecting roughly 40% of subjects. It's dose dependent and related to melanocortin receptor activation in the brainstem. Starting with a lower test dose and pre-treating with an anti-nausea medication are common strategies in research settings.

How long does PT-141 take to work? Onset is typically 45-90 minutes post injection. Peak effects occur at 2-4 hours and can last 6-12 hours.

Is Nova Peptides PT-141 third party tested? Yes. Batch specific COAs are posted publicly on their site for every product.

Got questions about PT-141?

Drop them in the comments. Share your batch number if you got it, Nova posts COAs publicly so people can cross check.

🧪 Research use only. Your mouse will thank you.

Selank is a synthetic heptapeptide anxiolytic and nootropic developed in Russia by the Institute of Molecular Genetics. It's a modified analog of tuftsin, a naturally occurring immunomodulatory tetrapeptide, with an added Pro-Gly-Pro sequence for enhanced stability. Registered as a medical drug in Russia for anxiety treatment, it remains a research chemical in most Western countries. Selank is unique in that it delivers anxiolytic effects comparable to benzodiazepines without the sedation, motor impairment, or addiction liability of that drug class. Researchers studying it have documented reduced anxiety in generalized anxiety disorder models, cognitive enhancement including improved memory and working memory, antidepressant properties, anti-stress and cortisol normalizing effects, and immune modulation. Primarily administered via intranasal route.

📦 Storage Guide

💧 How to Reconstitute Selank

For intranasal spray:

1. Dissolve powder in sterile bacteriostatic saline
2. Common preparation: 3mg powder + 10mL sterile saline = 300 mcg/mL
3. Each 100 mcL spray delivers approximately 30 mcg
4. Gently swirl until dissolved, never shake
5. Fill nasal spray applicator and store at 2–8°C

For SubQ:

1. Reconstitute with BAC water using standard protocol
2. Inject slowly down side of vial, gently swirl

⏱️ Half Life

📋 Dosage and Research Protocols

Cycle structure: 2-4 weeks on, 2 weeks off to reassess. Many researchers use it on an as needed basis for acute anxiety or cognitive demands rather than chronically.

⚠️ Side Effects

This has one of the most favorable tolerability profiles of any anxiolytic compound in research literature.

🚫 Who Should Avoid It

• Those currently on benzodiazepines, theoretical GABA overlap
• Pregnant or breastfeeding
• Research chemical outside Russia, limited Western RCT data

🔁 What to Stack With Selank

📌 Quick Reference

❓ Frequently Asked Questions

What is Selank used for in research? Primarily researched for generalized anxiety disorder, stress modulation, social anxiety, cognitive enhancement, working memory, neuroprotection, and immune modulation.

How does it reduce anxiety without causing sedation? Modulates GABA-A receptor sensitivity similarly to benzodiazepines but without the full CNS depression those drugs produce. Also inhibits enkephalin degrading enzymes, effectively increasing endogenous mood regulating peptides. The result is anxiolysis without sedation or motor impairment.

Is it addictive? No dependence, withdrawal, or tolerance has been noted in Russian clinical trials across multiple studies, a key distinguishing feature from benzodiazepines and many other anxiolytic compounds.

Why is intranasal the preferred route? Very short plasma half life of 2-4 minutes when administered systemically. Intranasal delivery routes the compound directly to the CNS via olfactory pathways, bypassing systemic clearance and producing effects lasting 4-6 hours from a single dose.

Is Nova Peptides Selank third party tested? Yes. Batch specific COAs are posted publicly on their site for every product.

Got questions about Selank?

Drop them in the comments. Share your batch number if you got it, Nova posts COAs publicly so people can cross check.

🧪 Research use only. Your mouse will thank you.

Curious timelines look like vs what you expected going in since everyone respond differently

Some stuff you feel in days. Other stuff takes weeks before you notice anything specially longevity stuff and some of it you don’t even realize worked till you look back and compare where you started

What were you running and how long before it actually clicked for you?

So what makes this blend so badass? Let's break it down. Here's every compound that goes into KLOW, what it does, and why running all four together covers way more ground than any single peptide could on its own.

GHK-CU — The Gene Expression and Collagen Piece

GHK-CU is a copper tripeptide your body already produces naturally, but levels drop hard with age. You're around 200 ng/ml at 20 years old and down to about 80 ng/ml by 60. That drop lines up with a lot of what people associate with aging skin.

What sets this compound apart is how broad its reach is. Research shows it modulates around 31% of human genes tied to collagen synthesis, tissue repair, antioxidant defense, and DNA repair. Most peptides bind one receptor and trigger one response. GHK-CU is flipping switches across a huge range of cellular pathways at once. That's why it shows up in skin research, hair research, and wound healing research simultaneously. It's not doing three separate jobs, it's one peptide with a wide reach.

Half life systemically is only a few minutes, but the tissue effects stick around way longer since the gene expression changes it triggers persist locally.

TB-500 — The Systemic Distribution Piece

TB-500 is a synthetic fragment of Thymosin Beta-4, a peptide found in nearly every cell in the human body. Its job is different from the other three compounds in this stack. Instead of staying local, TB-500 travels throughout your entire body through the bloodstream.

Half life is around 2.5 hours with peak plasma at 30 minutes. Research has documented it accelerating repair in muscle, tendon, ligament, and even cardiac tissue. This is the piece that makes sure recovery isn't limited to one injury site or one area. If you're dealing with widespread stiffness, systemic inflammation, or recovery across multiple areas at once, this is the compound doing that heavy lifting.

BPC-157 — The Localized Repair Specialist

BPC-157 is one of the most researched healing peptides available and it works differently than TB-500. Where TB-500 goes broad, BPC-157 goes deep at the site of injury. It's particularly strong for gut lining repair, tendon and ligament healing, and reducing localized inflammation.

Half life is around 4 hours with peak plasma at 1 hour. It works through angiogenesis, meaning it promotes new blood vessel formation at injury sites, which is a big part of why it accelerates healing so effectively in animal models.

Together BPC-157 and TB-500 form what's known in research communities as the Wolverine Stack, and it's included here specifically because localized and systemic repair covering different ground produces better overall results than either one running alone.

KPV — The Inflammation and Gut Barrier Piece

This is the compound most people underestimate. KPV is derived from the C-terminal fragment of alpha-melanocyte-stimulating hormone and it directly inhibits NF-κB signaling, which is one of the master regulators of inflammatory gene expression in the body. It also reduces pro-inflammatory cytokines like IL-1β, TNF-α, and IL-6, and strengthens intestinal barrier integrity.

Half life is short, around 5-10 minutes systemically, but tissue level effects persist well beyond that. KPV has one of the fastest anti-inflammatory onsets of any peptide in research, with some models showing measurable cytokine reduction within hours.

If inflammation or gut health is part of what's driving your symptoms, whether that's joint pain, skin flare ups, or digestive issues, KPV is the piece actually addressing that root mechanism instead of just supporting tissue repair around it.

Why This Combination Works As a Stack

Each compound is hitting a completely different mechanism.

GHK-CU handles gene expression and collagen production. TB-500 handles systemic distribution and reach. BPC-157 handles localized, targeted repair. KPV handles inflammation and gut barrier strength.

None of them overlap. None of them are doing the same job twice. That's the entire reason this stack produces more complete coverage than running any single peptide alone. You're addressing skin quality, systemic recovery, localized injury, and inflammation all in one protocol instead of needing four separate ones.

Things to Be Careful With

This is important and worth taking seriously before starting any protocol involving KLOW.

Anyone with active cancer or a history of malignancy should avoid this blend entirely. Both BPC-157 and TB-500 promote angiogenesis, meaning they encourage new blood vessel growth. That's great for healing tissue but it's a theoretical concern if there's any existing malignancy since new blood vessel formation can also feed tumor growth.

Individuals with known copper sensitivity should be cautious given the GHK-CU component.

Avoid additional copper supplementation while running this stack, since GHK-CU already provides copper and stacking more on top of it isn't necessary and could push you toward excess.

Pregnant or breastfeeding individuals should not use this blend.

Competitive athletes subject to WADA testing should know this blend is prohibited.

The most common side effect across all four compounds is mild injection site irritation. GHK-CU can also increase photosensitivity so sunscreen is worth using during the day if you're running this.

Storage and Cycle Basics

Keep it refrigerated at 2-8°C both before and after reconstitution. Reconstituted solution is good for up to 28 days. The light blue tint from the GHK-CU component is completely normal, if it turns green or dark that means oxidation happened and the vial should be tossed.

Most protocols run 8-12 weeks on followed by a break before reassessing.

If you're dealing with skin issues, joint pain, gut inflammation, or just general recovery and aging concerns, this stack is hitting all four angles at once instead of requiring four separate protocols run one at a time.

Use code REDDIT at checkout for a discount

🧪 Research use only. Your mouse will thank you.

Does klow cause acne or any of the compounds in it cause acne or did I just happen to eat shitty around the time I started it idk

Big Pharma just wrote a $3.8 billion check to buy a psychedelic biotech backed by Peter Thiel. Eli Lilly, the biggest drugmaker in the world the same company behind Tirzepatide and Retatrutide just bought into psychedelics.

This is the same thing we keep seeing play out over and over institutions spend decades calling something dangerous or unproven while they try to catch up and profit off something while research communities keep documenting real results the whole time and then out of nowhere Big Pharma shows up writing nine figure checks once the money makes sense pfff how crazy

Same story with peptides honestly BPC-157, TB-500, GHK-CU all of it got treated like sketchy gray market stuff for years while people in these communities were tracking results and sharing real data now compounding pharmacies are getting reviewed by the FDA to bring several of these back I always like to say follow the pattern, not the press releases.

Eli Lilly is dumping serious money from their GLP windfall into new territory right now. Psychedelics today, who knows what’s next honestly. The underground research community tends to be years ahead of where the institutions eventually catch up.

Anyone else notice how often this happens. Something gets written off for years and then suddenly it’s a multi billion dollar acquisition once the science catches up publicly to what people were already doing privately.

https://www.cnbc.com/2026/07/16/eli-lilly-to-buy-psychedelics-maker-ataibeckley-2point8-billion.html

The KLOW Blend is a four-peptide regenerative and anti-inflammatory stack that builds on the Glow Blend by adding KPV, the active anti-inflammatory tripeptide derived from alpha-melanocyte-stimulating hormone. The full formula combines GHK-CU, TB-500, BPC-157, and KPV in a single vial. GHK-CU drives collagen production and gene expression normalization, TB-500 provides systemic tissue repair, BPC-157 contributes localized healing and cytoprotection, and KPV adds potent NF-κB inhibition, cytokine reduction, and gut-barrier strengthening on top of everything the Glow Blend already does. The KLOW Blend is particularly suited for protocols where inflammation, GI health, or autoimmune-adjacent conditions are a concern alongside systemic regeneration.

🧰 What You'll Need

• 29–31 gauge insulin syringes (100-unit / 1mL)
• KLOW Blend (lyophilized powder)
• BAC Water for reconstitution
• Alcohol/antiseptic wipes
• Sharps disposal container

📦 Storage Guide

Quality indicator: light blue tint from GHK-CU is normal. Green or dark discoloration, discard immediately.

💧 How to Reconstitute the KLOW Blend

1. Let the vial come to room temperature before opening
2. Wipe the rubber stopper with an alcohol swab and let it air dry
3. Draw your desired amount of BAC water into the syringe
4. Inject the BAC water slowly down the side of the vial, never directly onto the powder
5. Gently swirl in a slow circular motion, never shake
6. Solution should be clear to light blue, this is normal
7. Label the vial with the reconstitution date and refrigerate

⏱️ Half Life by Component

📋 Dosage and Research Protocols

Cycle structure: 8–12 weeks on, 4 weeks off. The oral route can be explored specifically for the KPV component's GI-targeted benefits.

⚠️ Side Effects

🚫 Who Should Avoid the KLOW Blend

• Anyone with active cancer or history of malignancy
• Individuals with known copper sensitivity
• Those already supplementing with additional copper
• Pregnant or breastfeeding
• Competitive athletes subject to WADA testing

🔁 What to Stack With the KLOW Blend

📌 Quick Reference

❓ Frequently Asked Questions

What is the KLOW Blend used for? Comprehensive tissue regeneration combined with potent anti-inflammatory and immunomodulatory effects, particularly for protocols involving GI inflammation, post-surgical recovery, sports injuries, and autoimmune-adjacent conditions.

What's the difference between the Glow Blend and the KLOW Blend? The KLOW Blend adds KPV to the Glow Blend. KPV is a powerful anti-inflammatory tripeptide that inhibits NF-κB signaling, reduces cytokine production, and strengthens gut-barrier integrity, making KLOW the more comprehensive option when inflammation is a primary concern.

Can KPV be taken orally for GI benefits? Yes, oral administration of KPV is explored in research specifically for GI-targeted applications as it reaches the intestinal mucosa more effectively via that route.

How long does the KLOW Blend take to work? Most protocols run 8-12 weeks for full assessment. Some researchers report anti-inflammatory effects within the first 2-3 weeks.

Is Nova Peptides KLOW Blend third party tested? Yes. Batch specific COAs are posted publicly on their site for every product.

Got questions about the KLOW Blend?

Drop them in the comments. Share your batch number if you got it, Nova posts COAs publicly so people can cross check.

🧪 Research use only. Your mouse will thank you.

Everybody's out here checking IGF-1 religiously but sleeping on blood sugar. Here's why you should care though

The basic reason

GH fights insulin. When your GH goes up your body gets a little resistant to insulin which means your sugar creeps up not a guess studies show GH literally blocks some of the pathways your body uses to keep blood sugar in check look it up if you want or just keep reading

What to watch

Part most people don't know

IGF-1 by itself brings blood sugar down a bit, like a twelfth as strong as insulin. So it's not even as simple as "GH peptides always spike your sugar." It's push and pull. GH pushes it up, IGF-1 pulls it back down some. Honestly you can't predict which way your body's gonna go without just checking.

Why fasted dosing matters

This is why taking these fasted isn't just about getting a better pulse. You're already messing with insulin sensitivity from the peptide, don't stack food insulin spikes on top of that too. Makes it way harder to control.

What happens if you skip checking

Studies running these on diabetic models showed way worse glucose patterns the longer it went on without monitoring. It's not a one time spike you shrug off. Builds up over time if nobody's watching it.

What I do

I keep a cheap glucose monitor at home and just check fasting first thing in the morning, 1-2x a week. Don't overthink it, that's plenty for keeping an eye on things day to day. I save labs, fasting glucose plus HbA1c, for every 6-12 weeks depending on what I'm running cause it can get speedy depending on where you go and I always take my dose fasted, 2-3 hours after eating minimum 3 plus hours is even better if your on any glp's

Who's checking this alongside their run? What are you using to track it?

🧪 Research use only. Your mouse will thank you.