GHK Cu: My secret weapon for skin, hair, and healing, I use it two ways topical cream for my face, and subQ injections 3x a week., It boosts collagen, tightens skin, helps hair grow, and even 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 Peptides Benefits for Anti Aging Skin Rejuvenation How to Use With Micro Infusion Copper Fusion Cream Hot Selling Whitening Anti Aging Facial Serum Skin Care Ghk Cu Copper Peptide Serum 3ml Ghk Cu Copper Peptide Serum and Anti Aging Facial Serum price