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In a mouse study, selenium supplementation increased the expression and activity of certain Glutathione-related enzymes

Foundational work from the 1980s by Maquart and colleagues, conducted in animal and cell models, found that GHK-Cu significantly stimulated collagen, proteoglycans, angiogenesis, and wound closure, laying the groundwork for decades of subsequent research

Many advocates tout its potential for medical conditions and internal and external injuries

It broadly decreases inflammatory gene profiles and increases antioxidant defenses, which sustain tissue homeostasis in repair and fertility environments