Research chemicals known as peptides, many of them banned by the World Anti Doping Agency and some not approved for human use in the United States, are available with the simple click of GHK Cu: The Regenerative Peptide for Skin, Hair, and Healing Pulse & Remedy GHK CU 50 mg LIVV To my knowledge, GHK Cu isn't on WADA's banned list BPC 157 is banned. But here's the twist: Some athletes are using modified versions like N acetyl BPC 157 When you change the structure (like adding Subcutaneous Injection Sites and Instructions for Safe Self Administration Five Peptides Every Endurance Athlete Should Understand