GHK Cu (Copper Peptide) has emerged as one of the most promising regenerative peptides for hair restoration due to its ability to stimulate follicular activity, improve scalp circulation, reduce inflammation, and prolong the Longevity: Functional Medicine for Optimal Health and Wellness GHK Cu Scalp Serum Copper Peptide for Hair GOAL.MD Rigid flexible nanocarriers loaded with active peptides for antioxidant and anti inflammatory applications in skin ScienceDirect