Reddit asked questions. Here are answers. GHK Cu isn't newit's just not heavily marketed for hair (yet). Dr. Loren Pickart discovered it in the 70s. Decades of clinical research. Solid mechanism. We screwed GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health Synergy of GHKCu and hyaluronic acid on collagen IV upregulation via fibroblast and exvivo skin tests Jiang 2023 Journal of Cosmetic Dermatology Wiley Online Library GHK Biotin Peptide for Hair Growth: The Science Behind Scalp Renewal I'm Fabulous Cosmetics GHK Peptide Hair Growth Clinical Trial (2016) Research Summary Hairgenetix
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