Begin with 2 applications per week and build up gradually only if the skin tolerates it Use a clinical concentration of 1 to 2 percent GHK-Cu Apply to clean, dry skin and wait for full absorption before applying anything else Do not layer with vitamin C in the same routine: alternate morning and evening, or alternate days Do not combine with AHAs, BHAs, or retinoids in the same routine Patch test before full-face application, especially if you have reacted before Stay consistent for 8 to 12 weeks before judging whether it is working The Realistic Timeline Most users see noticeable benefit at 8 weeks and full results around 3 months
References Mehta NK, Vaishnav A, Priyadarshini MB, Debbarma P, Hoque MS, Mondal P, et al
We also recommend lowering your alcohol intake to further prevent drops in blood sugar levels
Most patients notice an initial glow after 23 sessions, while full brightening and wellness benefits appear after 1015 sessions
A four-case series and literature review