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The main differences include FDA approval, dosing consistency, manufacturing standards, and medical oversight
Studied in oxidative stress, antioxidant response, cellular defense, and glutathione-dependent pathway models
Kang, E
This is also why GHK-Cu appears frequently in longevity-adjacent research alongside other compounds studied for age-related cellular changes, since a quantifiable, age-correlated decline gives researchers a concrete variable to test against rather than a purely theoretical one
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