🌱 Healthy Aging · 6 min read · September 6, 2026
What Is NAD+ and Why Is Everyone Talking About It?
By Mark & Terri Klapperich, Shaklee Independent Ambassadors
The short answer
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every living cell that helps convert food into cellular energy and supports the body's repair systems. NAD+ levels decline naturally with age, which is why it has become one of the most talked-about topics in longevity. Shaklee's Vivix+ combines NMN, a precursor to NAD+, with a patented polyphenol blend and is shown to increase NAD+ by 70% within 24 hours.*
NAD+ in one paragraph
Think of NAD+ as a shuttle. It carries electrons around inside your cells so that mitochondria, the tiny power plants, can turn what you eat into usable energy. It is also involved in the enzymes your body uses to repair DNA and manage cellular stress.
You have trillions of cells and every one of them uses NAD+. When levels are high, cells have what they need to do their jobs. When levels drop, they do not.
Why NAD+ declines with age
Research suggests NAD+ levels can fall substantially between young adulthood and later life. Production slows, and the enzymes that consume NAD+ get busier. The result is less energy available at the cellular level.
That decline is one reason NAD+ shows up in conversations about the hallmarks of aging, the shared biological processes that researchers use to describe how aging happens.
NMN, NR, and IV drips: the options people ask about
You cannot take NAD+ directly as a pill and expect it to reach your cells intact. That is why the conversation is usually about precursors, the building blocks your body uses to make NAD+. NMN and NR are the two you will hear most.
NAD+ IV infusions have also become popular in wellness clinics. They are expensive and time-consuming. Shaklee reports that Vivix+ delivers 35x more usable NAD+ than IV infusions.*
How Vivix+ approaches it
Vivix+ pairs NMN with Shaklee's patented polyphenol blend. According to Shaklee, in clinical and laboratory studies Vivix+ is shown to increase NAD+ by 70% within 24 hours, increase VO₂ max without exercise, double mitochondria and cellular energy, and reduce DNA damage by two-thirds.*
We take it every morning. It is the product that got us interested in cellular health in the first place, and the one we field the most questions about.
What to do next
If you have been curious about NAD+, the simplest step is to try a clinically studied product for 30 days and pay attention. Vivix+ ships from Shaklee to every state, and Shaklee backs it with a 100% money-back guarantee.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
FAQ
Frequently asked questions
Is NAD+ the same as NMN?
No. NMN is a precursor that your body converts into NAD+. Vivix+ contains NMN.
How quickly does Vivix+ raise NAD+?
Shaklee reports Vivix+ is shown to increase NAD+ by 70% within 24 hours.*
Is Vivix+ safe to take every day?
Vivix+ is designed for daily use by adults. As with any supplement, check with your doctor if you have a medical condition or take prescription medication.