GHK-Cu is a naturally occurring copper-binding tripeptide widely recognized for its role in tissue remodeling, collagen synthesis, and cellular regeneration. Clinical research has investigated its potential applications in skin rejuvenation, wound healing, hair follicle support, and antioxidant defense mechanisms. Its ability to influence cellular repair pathways has made it a significant focus in regenerative and longevity research. In fitness and performance-oriented applications, GHK-Cu has gained attention for supporting recovery processes, tissue maintenance, and post-training regeneration. Research suggests that it may contribute to maintaining healthy connective tissues and promoting overall cellular resilience. These diverse biological activities continue to position GHK-Cu as a promising peptide in modern biomedical and performance-focused research.