GHK Cu (Copper Peptide) Provider Supervised Therapy IV Glow Bar Meet the ingredient your skin has been waiting for. GHK Cu, or Copper Tripeptide 1, is one of the most researched anti ageing actives in skincare. It firms. It renews. It supports collagen. And now 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 Peptide Therapy Collagen & Skin Renewal GHK Cu Copper Peptide Skin & Healing Beverly Hills BB Transform Potent Transformative GHK Cu Copper Peptide Serum Berck