Before and after begins with consistency. Our 10% GHK Cu formula is engineered for deep absorption to support scalp health and visible density. Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule GHK Cu for Skin Rejuvenation WeCare Pharmacy 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care Real people. Real results. No hype. We didn't ask Stephanie to do anything special. No ring light, no filter, no professional photos. Just her bathroom mirror and 3 weeks of consistency.