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 ACETATE Topical Foam Compounded Secret weapon unlocked: GHK Cu Did you know that GHK Cu peptide is the secret weapon for rejuvenating your skin and hair? GHK Cu peptide, also known as copper peptide, is a naturally GHK Cu Dosage for Hair Growth and Skin Rejuvenation GHK Cu is that feminine peptide every man should still be using if you want to age well. In this video I show the exact math and visuals for the dosage I take from a 50mg per ml vial using a standard