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N., Majmudar, G., et al
18 Unlike some other copper containing compounds like copper chloride or copper acetate, GHK-Cu has not been found to be cytotoxic or to cause irritation topically, making it an ideal option for delivery of copper into the skin
The most recent comprehensive synthesis is a July 2025 systematic review in the HSS Journal , the musculoskeletal journal of the Hospital for Special Surgery in New York, led by Nikhil Vasireddi at Case Western Reserve University School of Medicine
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