GHK Cu, BPC 157 & TB 500: Tissue Repair Peptides Glow Peptide Blend (GHK Cu, BPC 157, TB 500) Research Grade Zephrigen cocktail is a physician formulated peptide injection combining BPC 157, TB 500 and GHK Cu to accelerate healing, reduce inflammation and promote radiant skin. This all in one blend promotes healthier skin by Peptides BPC 157 promise to help heal and recover you from injuries and tough workouts (and do way more than that sometimes too!). But there's limited research into their effectiveness. So how do