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
J Pharmacol Exp Ther 351:390402
Scientific References Sikiric P, et al
HPLC purity : C18 column with acetonitrile/TFA gradient
This can make it difficult to perform physical tasks, whether its lifting heavy objects, exercising, or even getting up from a chair
The variant in this article contains GHK-Cu 25 mg at 55 mg total mass