Dr. Charles Brenner is a leading global researcher in NAD+ metabolism, known for discovering the vitamin activity of nicotinamide riboside.

Why NAD+ is important for whole-body health
Nicotinamide adenine dinucleotide (NAD+) is a vital coenzyme found in every cell of your body, essential for converting food into energy and supporting critical cellular functions. As we age, NAD+ levels naturally decline by up to 65%, contributing to reduced cellular energy and increased susceptibility to age-related health challenges.

The science of NAD+ boosting
Since NAD+ molecules are too large to effectively enter cells when taken directly, your body requires smaller compounds called NAD+ "precursors": building blocks that can cross into cells and convert into NAD+. Nicotinamide riboside (NR) is a unique form of vitamin B3 that efficiently converts to NAD+ in your cells through a specialized pathway.
Unlike other precursors, NR bypasses rate-limiting steps and avoids potential side effects associated with NAD+ and niacin supplementation. Extensive research demonstrates NR's superior bioavailability and safety profile, making it one of the most studied and effective NAD+ precursors available, with clinical studies consistently showing its ability to significantly raise NAD+ levels in humans.

How NAD+ supplementation can support your health
As we age, maintaining adequate NAD+ levels becomes increasingly important for cellular processes throughout the body. Studies on NAD+ supplementation show promising connections to positive benefits across multiple areas of health:
- Neurological Health (e.g., Parkinson's disease)
- Cardiovascular Health (e.g., Heart Failure)
- Orphan Disease (e.g., Ataxia Telangiectasia)
- Immune Function
- Aging & Healthspan
- Muscle Health
Expert-backed content
Every article, study summary, and educational resource undergoes rigorous expert review before publication.
Our educational content is created and reviewed by world-renowned experts in NAD+ research and cellular biology. From pioneering researchers who discovered NAD+ precursors to clinical investigators conducting cutting-edge trials, our expert network ensures the highest standards of scientific accuracy.

Charles Brenner, Ph.D.

Vilhelm (Will) Bohr, M.D., Ph.D., D.Sc.
Dr. Vilhelm Bohr is a leading researcher in DNA repair, aging, and neurodegenerative disease with over 600 journal publications.

Toby Amidor, MS, RD, CDN, FAND
Toby Amidor is a Wall Street Journal bestselling author and leading culinary nutrition expert, recognized with the Academy of Nutrition & Dietetics' Media Excellence Award.
Methods of NAD+ Administration: Understanding Your Options
Modern science offers several approaches to increasing NAD+ levels, each with distinct advantages and applications:

Oral Supplementation
The most convenient and widely studied method, particularly with nicotinamide riboside (NR), offering proven bioavailability and safety.

Intravenous Administration
Direct delivery for maximum bioavailability, typically used in clinical settings for specific therapeutic applications.

Liposomal Formulations
A delivery systems purported to enhance absorption and cellular uptake of NAD+ precursors, but lacking clinical research to support.
Blog

In The News
FDA Reverses NMN Decision: Risks, Quality Concerns, and Alternative Options
The U.S. FDA reversed its previous ban on NMN supplements, yet low-quality products and patent challenges pose risks. Explore safe, more effective NAD+ precursors backed by science.

Cellular Health
Why You Can't Take NAD+ Directly—and the Best Precursor to Boost NAD+ Effectively
Despite the hype, NAD+ supplements can't enter cells intact—but science shows NAD+ precursors like nicotinamide riboside (NR) efficiently cross cell membranes and are backed by over 35 clinical studies as the proven way to boost NAD+ levels for healthy aging.

In the News
NR, NMN, & NAD+ Supplements: What Testing Reveals About Quality
Despite the booming market, most NAD+ supplements fail testing, with many NR, NMN, and NAD+ products underdosed or mislabeled. Protect your health and wallet by choosing supplements with transparent labeling, verified third-party testing, and scientifically-backed ingredients.

