No, were not actually injecting copper , GHK Cu is a peptide your body already makes (just less of it as you age). It binds to copper and helps signal repair., Why people are into it:, supports GHK Cu Peptide: Benefits for Tissue Repair, Healing, and Recovery Revolution Health & Wellness 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 Beverly Hills Rejuvenation Center