Multi Peptide + Copper Peptides 1% (previously Buffet + Copper Peptides 1%) is a comprehensive formula which utilizes multiple skin support technologies that target multiple signs of aging at once. The formula incorporates Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3 Dr. Brenner Labs GHK CU: Rebuild Younger Looking Skin 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