Skin Perfection GHK Cu Copper Peptide Serum Booster, 1 Percent Blue Liquid For Face, Neck, Body, Hair, And Scalp, 0.5 oz Walmart.com Skin Perfection GHK Cu Copper Peptide Serum Booster, 1 Percent Blue Liquid For Face, Neck, Body, Hair, And Scalp, 0.5 oz Walmart.com GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution If you're into science that honors the Earth, this is the routine step I keep simple: Skin Perfection Copper Peptide as an easy add in to personalize your hydration base. My quick stack: GHK Cu Liv HEALTH