Koi Peptides

Koi Peptides (operating under Koi Research Labs LLC) is a United States-based supplier of high-purity research peptides and multi-peptide blends intended strictly for laboratory and in vitro research use. Founded in 2022, the company emphasizes analytical transparency and quality control, characterizing its products using reverse-phase High-Performance Liquid Chromatography (HPLC) for purity, mass spectrometry for identity, and Limulus Amebocyte Lysate (LAL) assays for endotoxin screening. Koi Peptides provides lot-specific, third-party verified Certificates of Analysis (COAs) through a searchable public library. Its product catalog includes individual reference compounds such as BPC-157 and GHK-Cu, as well as multi-peptide formulations like the Glow and Klow peptide stacks.