Pure NR from DoNotAge.org contains nicotinamide riboside chloride (NR), which supports healthy NAD+ levels in humans. Multiple human studies have been conducted using nicotinamide riboside chloride and it is continually being researched by many in the field of NAD and sirtuins. It is believed that NR can support brain performance (cognitive function, focus and memory), support the natural immune system, reduce fatigue, support healthy DNA, and of course assist sirtuin activation. Each capsule contains 350mg of nicotinamide riboside chloride (NR). This product comes with the DoNotAge.org Quality Guarantee. This means that we guarantee the purity and quality of this product to your door, no matter where you live. All of our products are produced to GMP and ISO9001 standards. Our products are manufactured and stored in cool, dark and dry environments. This product is suitable for vegans.