Copper Peptide Hair Growth Serum for Hair Loss & Thinning Hair Feline Skinscience GHK Cu peptides are used to potentially promote hair growth, increase hair follicle size, and improve scalp health, often for conditions like androgenetic alopecia. As a regenerative peptide, GHK Cu is believed to Customize Logo Luxury GHK CU Copper Peptide Hair Growth Oil Cu Peptide Before and After: What to Expect for Skin and Hair GHK Cu for Skin Rejuvenation WeCare Pharmacy