This is a product I purchased on Amazon, so I want to give it a quick review. *~Dumie GHK CU Facial Serum~* This is a Copper Peptide serum that is working amazingly for Dermicu GHK Cu Facial Serum Bacteriostaticwater.com GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution GHK Cu Copper Peptide Serum 1% Black Tie Health 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