Ghk Cu Intra Nasal Spray 50 mg 0.34 oz. Westend Medical Supply 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 AHK Cu (Copper Tripeptide 3) Ingredient Guide Nubeean Noosa Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule