The Definitive Peptide Research Reference Guide — Compound Review

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Purgo Labs Review 2026: COA Standards, Product Quality & Shipping

A detailed review of Purgo Labs' COA standards, product quality, shipping, and pricing — based on product testing, COA verification, and community feedback from the research peptide community.

Certificate of Analysis (COA) Standards

HPLC + mass spectrometry testing on every batch. COA includes purity %, sequence confirmation, and endotoxin testing. Third-party lab verification available on request.

Product Quality & Purity

≥98% purity guaranteed across all products. Lyophilized powder, amber vials, nitrogen-flushed for oxidation protection. Cold-chain shipping with ice packs included.

Product Range

30+ research peptides including GLP-1 analogues (semaglutide, tirzepatide), GH-axis peptides (CJC-1295, Ipamorelin), healing peptides (BPC-157, TB-500), and longevity compounds (Epithalon, MOTS-c).