In topical cosmetic form, GHK-Cu is available without a prescription in OTC serums, creams, and hair products from legitimate skincare brands (look for copper tripeptide-1 in the ingredient list)
Proposed Mechanisms (Preclinical) FOXO4p53 Axis in Senescent Cells Based on work showing FOXO4 association with p53 in senescent cells
PMC 12313605
The Leyden 2002 facial-cream trial reported skin density, thickness, fine lines, and laxity changes at 12 weeks
Patients adhered to a standardized wound care protocol, including sharp debridement, daily drug application, pressure-relieving footwear, and diabetes management education
A formula for predicting accumulation is shown in Equation 3