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 Amazon.com: Neurogan GHK Cu (Copper Peptide) Neck & Face Serum 1,200mcg (1 oz bottle) : Beauty & Personal Care Best Selling Skin Care Anti Aging Anti Wrinkle Repairing Firming Ghk Cu Blue Copper Peptide Serum Copper Peptide Collection Serum, Moisturizer, Eye & Lash Cream GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true? Copper peptide, known as GHK Cu, has GHK Cu Peptide Therapy Connecticut Skin Rejuvenation Benefits