Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3 Dr. Brenner Labs GHK Cu Peptide Serum: Copper Peptides for Skin Firmness Mythos Mythos Skincare With out being able to inject in actual face this peptide has shown some promising results! This is after 6 weeks of a daily topical application GHK Cu Argireline Leuphasyl 0.2% 0.5% 0.5% Cream Trio Cosmetic Tringali Vibrant Health Supplement Store