I've been getting a lot of questions about GHK Cu, so here's a quick breakdown. GHK Cu is a copper peptide that naturally occurs in the body and plays a role in skin repair Neurogan Health, Copper Peptide GHK CU, 120 mcg, 60 Tablets iHerb Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with GHK Cu and Methylene Blue infused Organic Vegan Shea Butter Blend AzulBotanicals GHK CU Topical Cream NEXTDRIP GHK Cu Skin Serum Peptide Rejuvenation GOAL.MD