GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution Lets talk GHK Cu , GHK Cu is a naturally occurring copper peptide that supports:, Collagen production, Tissue repair, Skin rejuvenation, Reducing Inflammation , Healthy aging, As levels 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 Copper, Collagen, and Controversy: Inside the GHK Cu Buzz GHK Copper Peptide GHK Cu Tripeptide 1