How it works.
NAD+ is a coenzyme present in every living cell, central to redox reactions in glycolysis, the TCA cycle, and oxidative phosphorylation. It is also a substrate for sirtuins, PARPs, and CD38 — enzymes implicated in DNA repair, gene expression regulation, and aging biology. Cellular NAD+ levels decline with age in mammalian tissue; restoring or supplementing NAD+ in research models has produced measurable effects on mitochondrial respiration and sirtuin-dependent transcription.
Verified buyer notes.
Initials only — every quote is verified against an order record. We don’t ghost-write reviews.
“COA matched what we ran in-house. Powder reconstituted clean, no haze. Did exactly what we needed it to.”
“Switched after two bad lots from a previous source. Three orders in, zero issues.”
“Shipment got delayed two days by weather and still arrived at 4°C. Packaging is no joke.”
The shared signature.
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