GHK-Cu, a naturally occurring copper-bound tripeptide, has become an important subject of research for its potential role in supporting hair follicle regeneration. Studies suggest that GHK-Cu may help activate key biological pathways involved in tissue repair, stem cell activity, and extracellular matrix remodeling. In hair biology research, this peptide has been explored for its ability to influence follicular cell proliferation, reduce oxidative stress, and promote a more favorable environment for healthy hair growth cycles. Researchers are particularly interested in GHK-Cu’s interactions with signaling molecules that may support increased blood flow, enhance nutrient delivery to follicles, and modulate inflammation all factors that can contribute to optimized hair follicle function. As its molecular mechanisms continue to be studied, GHK-Cu remains a promising compound for advancing scientific understanding of hair regeneration and scalp health.