affiliate disclosure · we earn commission on some vendor links. audits, scores, and rankings are independent — vendors do not pay for placement. read more →
Two audits, side by side. Composite, subscores, shipping, payment, coupons. Particle Peptides takes the higher composite this cycle.
Slovak shop that publishes its full certificate archive: 79 reports from Apigenex and Liquilabs, 9 checkable on the lab's own server. Older lots run short of label; 2025-26 Liquilabs lots meet it. Sells retatrutide as "GLP-3". Public-data audit, no first-hand order, 62/100.
Held for reference, not a current recommendation. The link we drew from the December 2024 FDA warning letter to "Summit Research Peptides" to the current Summit Biotech site is an inference, not a record - the letter names summitpeptides.shop, while summitbiotechusa.com was registered months later; the only hard tie is a same-name domain that 301-redirects to it. The catalog is login-walled, our data is from May 2026, and there is no independent buyer record, so readers cannot re-check anything. We have removed it from the ranked vendor list.