An independent review of each research-peptide vendor we list — scored on the same 100-point Standard as the rest of the site, from the lab evidence and policies they actually publish. Never ranked by commission.
Research reference only. AmericanPeptide does not sell peptides.
Ranked by transparency score, strongest first. Each review breaks down exactly how the score is earned — and what to watch for. Reviews score vendors on evidence, not marketing; a supplier can never buy a better number.
Amino Club
Independently documentedOur lead sourcing partner: a US research-peptide distributor where every batch ships a lot-matched third-party COA (MZ Biolabs / Janoshik) at ≥99% HPLC purity, backed by free reship on loss and a 60-day money-back guarantee.
ABSIM Peptides
Vendor-claimed testing FeaturedUS research-peptide supplier publishing a certificate of analysis on every product listing; cGMP-compliant manufacturing, free US shipping over $200.