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Sci Adv
5 The addition of copper to GHK is thought to enhance certain enzymatic functions important for skin maintenance and repair
GHK-Cus clinically proven benefits, including wrinkle reduction, skin firming, and hydration, align with consumer demand for science-backed anti-aging solutions
In males, the core fertility factors consist of spermatogenesis, seminal plasma content, and the health of testicular tissue and ducts
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