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In a landmark human trial comparing topical GHK-Cu to vitamin C and retinoic acid (tretinoin), GHK-Cu produced measurable collagen increases in 70% of study volunteers outperforming both comparator treatments (Abdulghani et al., 1998)

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Because normal aging is associated with increased free radical-induced damage in the body and also with memory loss, antioxidant supplementation might slow age-related memory declines (120)

15 studies

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It is important to highlight the variability of clinical data