Key Clinical Findings ​Increased Hair Density: A 2010 study (Falla et

Key Clinical Findings ​Increased Hair Density: A 2010 study (Falla et al.) reported a 27% increase in hair density after six months of daily topical use. ​Reduced Shedding: In a 2011 evaluation (Taub and Garrett), 70% of participants saw a noticeable decrease in hair loss after three months of application. ​Comparison to Minoxidil: Some smaller comparative studies suggest GHK-Cu performs similarly to 5% Minoxidil in stimulating follicle activity but with a significantly better safety profile (less scalp irritation). ​Synergistic Effects: A 2025 study on "peptide tattooing" (dermal infusion) showed that combining copper peptides with other treatments like minoxidil and dutasteride significantly improved regrowth compared to using those medications alone.