About Alpha Peptides

Alpha Peptides is a US-based (Nashua, NH) supplier with a genuinely strong, public COA program — per-batch certificates on every product page from two named third-party labs. We verified both from real samples: Freedom Diagnostics (Retatrutide at 99.97%, full HPLC + LC-MS) and Analytical Formulations Inc. (AFI), a cGLP-certified lab operating since 2008, whose report runs an unusually thorough triple-vial panel — identity, 99.7% purity, quantitative assay against label claim, and heavy-metals screening under 20 ppb. Heavy-metals testing in particular is rare among research-peptide sellers.

That public, named-lab, batch-level testing is exactly what our 40% COA factor rewards most, which floors the score at 8 despite the brand being new. What keeps it below the top tier is everything outside the lab work: it launched in 2025 with no externally verifiable reputation (the on-site '3,500+ customers / 4.9' figure has no Trustpilot or forum to back it), and a large part of the catalog was out of stock when we checked. US-based; free shipping over $200; 10%-off reader code.