Picture a Tuesday evening. Someone’s just finished scrolling through their third tab of AHK-Cu listings, wondering why one vial costs forty dollars and another costs four times that, and why one website asks for a photo ID and a health…

What does ‘research use only’ actually mean when you buy a peptide? Three things go missing the moment you see that label. Nobody with a prescribing license has judged whether the compound suits you. No pharmacy answers for its sterility.…