Preclinical wound healing Animal wound-healing studies in rats, mice, rabbits, and pigs reported faster wound contraction, increased collagen, and improved angiogenesis with GHK-Cu, including systemic effects when GHK-Cu was injected at one site and improved healing at distant sites
Dose, route, and cycle length change with the injury, the tissue, and what else you're taking
Warnings: Injectable glutathione particularly intravenous delivery has been noted as contraindicated in systematic review literature due to insufficient evidence of efficacy and adverse side-effect profile, per a 2025 systematic review by Sarkar, Yadav, and colleagues in the International Journal of Dermatology
Based on what patients report
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Research supports the idea that the tripeptide may help wound recovery through its antioxidant and tissue-remodeling properties