Why Your Body Needs NAD

NAD is an essential resource for cellular energy production. But we lose up to 50% of our NAD levels between the ages of 40 and 60. When NAD levels are low, our cells have a harder time producing the energy they need to maintain our health as we age. All our cells are dependent on NAD for cellular energy and maintenance. Heart, brain and blood vessel cells, nerve, bone and hormone producing cells as well as our liver, kidney and immune cells. In fact, all our cells are dependent on NAD for proper function, no matter what your age, young or old.
Supports Cellular Repair
Maintains Healthy Mitochondria
Supports Cellular Energy



“Niagen® is a branded form
of NR—a form of vitamin B3 being studied extensively around the world for its ability to support health span.”


“NAD is vital to how cells use energy, a key player in metabolism.”


“Nicotinamide riboside is rare among supplement compounds in that it is being studied extensively, in trials funded by Chromadex and other parties.”


“Levels of NAD decline with age, and fasting is one way to replenish them; NR supplements are another.”

Harper’s Bazaar

“Another NAD booster, NR, found in ChromaDex’s Tru Niagen® supplement, and has been shown to be safe in humans.”

What The Science Says

Scientists have known about the vital role of NAD since 1906. Since then, they’ve learned NAD is found in every living cell, and that it powers the mitochondria, which keeps almost every tissue in the body healthy. In 2004, a landmark study uncovered a unique form of vitamin B3 that could safely and efficiently raise NAD levels.
8 Published Human Studies

All eight peer-reviewed published human studies confirm NIAGEN® is an effective way of supporting NAD levels in humans.

100+ Scientific Studies

Scientific studies at Dartmouth Medical School, University of Iowa, and École Polytechnique Fédérale de Lausanne lay the foundation for our human studies.

20+ Owned and Licensed Patents

Our parent company, ChromaDex, holds a robust portfolio of domestic and international patents for both the production and distribution of NIAGEN®.

175 Research Collaborations

NIAGEN® has been independently researched by teams at Cambridge University, Northwestern University, Duke University, New York University, University of California, and many more around the world to uncover the full potential of NAD to support human health.

What Tru Niagen® is

TRU NIAGEN contains a unique molecule called nicotinamide riboside (NR), which has been proven to increase NAD levels. Chromadex licensed the patents, supported the science, and manufactures our key ingredient NIAGEN® at cGMP facilities in the United States.