GLOW FROM WITHIN This is NOT just another serum this is Peptide+ GHK CU Powered by copper peptides, it works deep within the skin to: Boost collagen & elastin ( Topical GHK CU Ever heard of GHK Cu peptide? It's a naturally occurring copper peptide that helps repair tissue, stimulate collagen, and support skin healing. When used in injectable form, it works at a deeper level GHK CU Beverly Hills Rejuvenation Center GHK Cu Copper Peptide Face Tonic (30 mL) Reduces Appearance of Fine Lines Supports Skin Firmness