GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) is an endogenous tripeptide-copper complex with high affinity for tissue remodeling and cellular regeneration. Extensively studied for its role in dermal repair, anti-inflammatory modulation, and epigenetic signaling, GHK-Cu activates key pathways involved in wound healing, collagen synthesis, and skin renewal—positioning it as a foundational molecule in regenerative aesthetics and healthy aging.