GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu: The Peptide That Rebuilds, Repairs & Rejuvenates Boston Health Longevity 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) is a naturally occurring peptide in the body that binds with copper to support cell repair and renewal. As we age, our levels decrease and thats where supplementation or Pinealon vs Epitalon Key Differences & Benefits Comparison