A large share of the peptide-curious population, particularly those who've hit friction in the medical system or found that their physician didn't know what to say, ends up on websites selling "research peptides" with disclaimers noting the products are "not for human use" or "for research purposes only." These disclaimers are legally protective for sellers
doi: 10.2165/00003495-199856060-00019
Phase 3 trials (Frias et al., 2021

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I'm generally fairly happy to trust my judgement on things