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Once absorbed, NAC is deacetylated to cysteine in the body, which is then incorporated into glutathione via the enzyme gamma-glutamylcysteine synthetase
GHK-Cu activates the TGF-/Smad signaling pathwaythe most potent endogenous stimulator of collagen productionwhile simultaneously enhancing production of connective tissue growth factor (CTGF) and FGF-2 that further amplify collagen expression
Any reduction in cysteine availability directly translates to reduced glutathione synthesis
These aggregated substances may increase the risk of formulation instability and potential sensitization
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