GHK Cu Peptide Serum, Copper Peptide Serum with Hyaluronic Acid for Skin Tightening, Collagen Boosting & Deep Hydration, Advanced Topical Anti Aging Facial Serum TikTok Shop Amazon.com: Asterwood Copper Peptides Serum for Face with GHK Cu Peptide and Hyaluronic Acid Anti Aging Facial Serum 1 Fl Oz : Beauty & Personal Care Active just means the serum contains a functional, lab verified concentration of real GHK Cu copper peptide not just colour or trace copper. Our formula includes 300mg of pure GHK Cu (1% concentration) in N acetylcysteine (NAC) is a supplement I frequently recommend to clients most commonly for conditions such as endometriosis or as part of post concussion protocols. Some of you might also recognise NAC INTRODUCING A very hyped & controversial peptide that has made its way onto every Tik Tok & Instagram page GHK Cu Copper Peptide BUT in a topical serum infused