††USA Functional Medicine MDs, DOs, NDs, DCs and Nutrition Professionals surveyed in 2025 for Designs for Health.

CellGuard-NR™ is uniquely formulated to support the body’s natural cellular repair process, antioxidative status, and healthy aging.* This formula contains clinically relevant amounts of Niagen®, a form of nicotinamide riboside chloride (NR), resveratrol as Veri-te™, and pterostilbene. NR is a variation of vitamin B3 (niacin) and is a building block to nicotinamide adenine dinucleotide (NAD+).

NAD+ is found in every living cell and is essential to many important cellular processes including energy production. NAD+ plays a role in more than 500 reactions in the body, including gene expression, stress response, and DNA repair.

Resveratrol is a bioactive plant compound found in grape skin, berries (such as blueberries and raspberries), and peanuts. It is known for its role in supporting a healthy response to oxidative stress and inflammation.* Research suggests it may also support the body’s normal cellular regeneration and repair.* Pterostilbene is another plant-derived compound structurally similar to resveratrol. This highly bioavailable molecule has been shown to support antioxidative status, a healthy inflammatory response, and healthy cellular function.*

CellGuard-NR™ provides 300 mg of nicotinamide riboside chloride as Niagen®, 200 mg of resveratrol as Veri-te™, and 50 mg of pterostilbene. Together, these nutrients help support a healthy cell cycle, cellular repair, a healthy response to oxidative stress, and healthy aging.*

Suggested Use / Directions:
Take 2 capsules per day with a meal or as directed by your health-care practitioner.

Serving Size:
2 Capsules

Amount Per Serving:

Nicotinamide Riboside Chloride ... 300mg
(Niagen®)
Trans Resveratrol ... 200mg
(Veri-te™)
Trans-Pterostilbene ... 50mg

Other Ingredients:
Cellulose (capsule), microcrystalline cellulose, dicalcium phosphate, vegetable stearate, quillaja extract.


Consult with your health-care practitioner about your specific circumstances and any questions you may have about this product.