The KLOW Peptide is a combination of 4 peptides, each with a specific function! BPC 157: May help in tissue regeneration and improved muscle recovery TB 500: May help improve vascular connections KLOW 80 GHK Cu (50mg) KPV (10mg) BPC 157 (10mg) TB500 (10mg) Paramount Peptides KLOW Peptide Metabolic & Cellular Research Compound Investigating the Mechanisms of a Multi Peptide Research Blend: KLOW Thoroughbred Labs New Peptides will be available at Optimal Healthcare starting in February!!! Each backed with COA ( certification of authenticity ) **Side note. If you are taking peptides make sure they have this.