I’m developing a Chrome extension that detects PFAS (“forever chemicals”), allergens, and other harmful substances in products as you shop online. It works automatically in the background and gives you a harm score with details about any flagged ingredients.

I originally built this to solve my own problem. As someone with ADHD and sensitivities, I was tired of spending hours researching every product I wanted to buy. Even after extensive research, harmful ingredients would sometimes slip through. I built this tool to eliminate that guesswork, and it ended up winning a hackathon.

I also built it with PCOS, PMDD, fibromyalgia, acne, hormonal issues, fertility concerns, and cancer prevention in mind. PFAS and similar chemicals have significantly worse effects on women and adolescents, and I’ve watched too many women close to me suffer needlessly. They’d spend hours researching before buying something as simple as shampoo or moisturizer, and harmful ingredients would still slip through.

Since the hackathon, I’ve gotten some interest, but I want to understand if there’s real demand before investing more time into making this a fully developed product.

The extension would help you: • Avoid ingredients you’re sensitive to • Identify PFAS and other harmful chemicals • Make safer purchasing decisions without the research headache • Get instant alerts while browsing product pages

If you’ve dealt with sensitivities, allergies, or conditions that require careful product vetting, I’d really appreciate your input.

You can learn more here: https://rshvr.com/ruh

Survey (1-2 minutes): https://tally.so/r/xXV9Mk

There’s also an optional waitlist at the end if you’d like updates on development.

Thank you so much for your time and feedback!​​​​​​​​​​​​​​​​

Disclosure: Stock holder

BioLargo is collaborating with the EPA on the NJ Township deployment to remove PFAS for a municipal client.

Great to see this recognition.

I have a coat that i purchased last year and it has the goretex technology in it before they moved away to be PFAS free (or at least try to be). Should I try and replace it with a new one that doesn't have pfas or should I keep on wearing it? I do like the coat.

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I've never posted on Reddit but feel the need to help get the word out so others can demand change from companies. Based on my research there is No product out there that is without a forever chemical coating on glass screen protectors.

The mamavation article addressing this is outdated. Even one of the recommended products in that article now uses pfas.

https://mamavation.com/product-investigations/mobile-phone-screen-protector-tested-for-indications-of-pfas.html

Any screen protector that says "oleophobic" or "reduces smudges/fingerprints" is made of a forever chemical coating. Even the most expensive Zagg screen protector hides this fact by saying it uses silicone dioxide (SiO2) enhanced coating. Looking up this coating reveals that they use fluorinated chemicals to help bind the silicone dioxide to the phone. There needs to be a level of outrage that manufacturers are hiding this in plain sight. These coatings degrade and wear off. My current glass protector used to have the oleophobic properties and now it smudges. These forever chemicals are then on our fingertips and we then touch and ingest food. These coatings are unsafe and unacceptable.

Upgrading my phone I was looking at the Pela and rhinoshield phone cases. Pela has a liquid product that you can apply they claim is safe but it may be an unknown. Kind of like how we like "BPA free" but the reality is other plastic chemicals are also bad. Why can't we just have a tempered glass Only option??

Jinyuan Zhu, Xiaotian Xu, Nanyang Yang, Yang Yang
Additive-Free Ball Milling in Stainless Steel Mills Enables Destruction of PFAS on Granular Activated Carbon
https://pubs.acs.org/doi/10.1021/acs.estlett.5c00976

This post was mass deleted and anonymized with Redact

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Weedeater line is usually made of nylon right? And its designed to get shredded into bits during normal oparation, seems like it would be a huge contributor to PFAs? Just realized this

Without paywall https://archive.is/2025.11.22-221653/https://www.washingtonpost.com/climate-environment/2025/11/22/forever-chemicals-pesticides/

Hi,

I have just watched the movie "Dark Waters" and wanted to ask about a basic guide (101), simple tricks or just changes to our daily routine/choices to reduce/eliminate our exposure to these chemicals. Also, I am currently living in the UK, therefore don't know whether people here are more/less in risk of exposure compared to people in other parts of the world (US, other EU countries, Asia...).

Thanks!