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 Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Amazon.com: GHK Cu Peptide Copper Peptides Serum for Face Topical GHKCu with Hyaluronic Acid for Healthy Aging Multi Peptide Formula to Promote Collagen Support Fine Lines Firming Skin Elasticity Hydration : Beauty GHK Cu Topical vs Injection Which is the Better Copper Peptide Form? Plush Topical GHK Cu (copper peptide) is a regenerative serum or cream used to boost collagen, reduce wrinkles, improve skin elasticity, and stimulate hair follicle growth. It acts as a potent antioxidant,