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Gene Expr
Controlled human trials exist, but they're limited in size, focused mostly on topical cosmetic use, and usually last only a few weeks or months. That means a lot of the exciting claims, especially around gene expression, systemic repair, and anti-aging effects, haven't been confirmed in large-scale human studies
Its popular because it lasts longer
This process helps restore depleted NAD levels, which can occur due to stress, aging, illness, or poor nutrition
However, it is important to describe this as modulation of signaling pathways, not as proven therapeutic effects
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