GHK Cu Copper Peptide Neck & Face Serum Enhanced 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 Peptide Face Serum NEW Cobalt Blue Bottle 2 Oz Etsy ENHANCED EXTENDS PEPTIDE PLATFORM WITH TOPICAL GHK CU, FORMULATED UNDER MEDICAL COMMISSION OVERSIGHT Enhanced Good skincare fits into your life, not the other way around. One pump of the GHK Cu Peptide Serum morning or evening is all it takes. Copper peptides. Hyaluronic acid. Niacinamide. Palmitoyl Peptides.