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Results showed that the ingredient significantly increased NAD+ levels in senescent fibroblasts, activated the SIRT1 signaling pathway, reduced the expression of senescence-associated -galactosidase (SA--gal), decreased intracellular reactive oxygen species accumulation, and promoted collagen synthesis
2003 Oct;56(5):270-4
Especially important for GHK-Cu copper cycling
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Cell Journal (Yakhteh), 19 (1), 11-17
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