I think everything I did for my scars worked synergistically and helped, but if I had to choose one product, it would be GHK Cu (aka copper peptides)., Now one year later I see the resultsand theyve Peptide GHK CU Cream Concierge MD GHK Cu: Skin Healing, Anti Aging, & Hair Growth Benefits Thrive Copper Peptide Serum Skin Barrier Support & Hydration 29ml Reducing the Diseases of Human Aging with GHK Cu Scar Removal with Copper Peptides, Hydroxy Acids, and Microneedling What Serum to Use After Dermaroller, Dermapen, Derminator Amazon.com : Koreana Skin GHK Cu Copper Peptide Hydrogel Face Mask Anti Aging Collagen Booster for Skin Repair, Firming, Fades Acne Scars & Redness. K Beauty Sheet Mask Treatment : Beauty & Personal Care