When a product says copper peptides it's worth checking the ingredient list. Copper peptides (like **Copper Tripeptide 1 GHK Cu**) are signaling ingredients that can support collagen processes in the skin. But not 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 Dosage for Hair Growth and Skin Rejuvenation Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Jumbo Size Biossance GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution How to Maximize GHK Cu Peptide Results with Micro Infusion Celebrity Esthetician Secrets