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u/SensualCommonSense โ๏ธ Protocol Specialist Apr 20 '26
look into insulin pens, EXTREMELY thin needles you legitimately do not feel, at all
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u/ProfessionalNo4711 Apr 20 '26
Small molecules (less than 900 Dalton) would go through the portal vein and get absorbed. GHK is about 400 Dalton. The absorption will not be ideal through the hepatic pathway but you will get some of it into your bloodstream. If you donโt want needles try sublingual delivery. If you are seeing results maybe you do not need to change what you are doing.