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Shen, K
The preclinical findings are promising enough to generate interest in the longevity and athletic performance communities, but they do not constitute proof of specific outcomes in any individual human user
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Comparing GHK-Cu vs Retinol for Anti-Aging Mechanisms: Overlap and Divergence Both GHK-Cu and retinol stimulate collagen synthesis, and it is tempting to treat that shared outcome as evidence of redundancy
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