VUE GHK Cu is more than a skin peptide. Known as a copper peptide, GHK Cu is studied for its role in repair signaling, collagen support, Instagram 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 Copper Peptide Serum Scar Repair & Collagen Support Studd Muffyn Glow from within with GHK Cu Copper Peptide , This powerhouse peptide supports collagen production, skin repair, and hair follicle health, helping improve skin firmness, radiance, and support GHK Cu (1) Quality Approved