Most skincare stays on the surface., GHK Cu works deepersupporting your skin at the cellular level without the irritation cycle of retinol., No redness., No downtime., Just real support where it Retinol vs. GHK Cu Two key ingredients used to address visible signs of ageing. Retinol A popular synthetic molecule that accelerates cellular turnover and skin resurfacing, helping to promote even skin Retinol Alternatives: Why Peptide Based Skincare Is the Future of Anti Copper Peptides vs Retinol: Do You Need Both? Nubeean Noosa Intensive Anti Aging Serum with Copper Peptide(GHK Cu) and Hyaluronic Acid Peptides vs. Retinol Which is Better For Skin Health?