Nicotinamide Riboside Chloride: The Clinical-Grade NAD+ Precursor Buyers Are Standardising On
Nicotinamide riboside chloride (NR-Cl) is the pyridinium salt of nicotinamide riboside, a nucleoside form of vitamin B3 occurring in trace amounts in milk and fermented foods. Commercially it is the stabilised, water-soluble grade of NR — CAS 23111-00-4, C11H15ClN2O5, supplied as a white to off-white crystalline powder at 98–99% assay by HPLC.
The distinction matters for procurement. Native NR is hygroscopic and degrades quickly; the chloride salt delivers the shelf-life and dosing accuracy finished-goods manufacturers require, which is why it dominates supplement specifications. NR is a different molecule from NMN — buyers should verify salt form, assay method and handling conditions on every COA.
Mechanism of Action
NR enters cells via nucleoside transporters and is phosphorylated by nicotinamide riboside kinases (NRK1/NRK2) directly into nicotinamide mononucleotide, then converted to NAD+. This salvage route bypasses the rate-limiting steps of the de novo pathway, making NR an efficient oral precursor for raising intracellular NAD+, which declines measurably with age.
Restored NAD+ availability supports mitochondrial ATP production and activates sirtuin-mediated pathways and PARP-dependent DNA repair — a cellular-energy and resilience claim that is defensible in most regulated markets, with human trial data covering 300–1,000 mg daily.
Five Key Application Areas
- Longevity and cellular-aging capsules — stacked with resveratrol, pterostilbene or PQQ for sirtuin activation.
- Mitochondrial energy and sports recovery — pre-workout and recovery powders targeting fatigue.
- Cognitive formulas — combined with citicoline or L-theanine for focus and age-related support.
- Beauty-from-within — paired with collagen, ergothioneine or glutathione for skin-aging positioning.
- Functional food and beverage premixes — sachets, RTD shots and gummies, where solubility is decisive.
VeraVita Bio Supply
VeraVita Bio supplies nicotinamide riboside chloride at ≥99% purity (HPLC), with batch-specific COA and MSDS available on request, including heavy metals, microbiology, water content and residual solvents. We support OEM/ODM development from raw material through capsule, sachet and premix formats, and can advise on salt-form selection and cold-chain handling. For specifications, samples or a quotation, contact info@veravitabio.com.