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Quick Takeaways GHK-Cu activates multiple hair growth pathways including angiogenesis, stem cell activation, and the Wnt/-Catenin signaling cascade that governs follicle cycling Human clinical studies of GHK-Cu show measurable improvements in hair density, diameter, and scalp coverage, especially in androgenetic alopecia The evidence base is promising and growing: We have mechanistic data, animal models, and clinical trials, but no large-scale RCTs comparing it directly to Minoxidil or Finasteride (yet)

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Zinc Zinc has a significant impact on the functioning of neurotransmitters and the nervous system in general

In fact, consuming vitamin C with glutathione can enhance its effects

L.ZhangW.LiH.et al (2021)