Food Derived TripeptideCopper Self Healing Hydrogel for Infected Wound Healing Biomaterials Research Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK GHK Cu Copper Peptide Cream (Prescription) UluRx 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