Best NAD+ Supplements for Your 60s, 70s and 80s: Ranked by the Numbers

Which NAD+ supplement is the best pick right now?

Vivacelle is our pick: 500 mg of NAD+ per serving alongside quercetin, $1.30 per serving on the 3-month supply against Elevate NAD+'s $3.00 on a single jar, a 180-day money-back guarantee where Elevate NAD+ gives 90 days, and no subscription to remember to cancel.

You know the loss. The energy that used to last into the evening is gone by mid-afternoon. The name you want sits just out of reach. The stairs have become a negotiation. Most pages ranking today write for a general adult audience and never once speak to you. This one does. And if your answer to all of it is "just walk," keep walking, because the walk and the fuel are on the same side. Your repair genes did not die; they ran out of fuel, and the fuel is NAD+. In one study, the lowest muscle NAD+ showed up in older adults who were physically impaired. The walk helps, and the fuel is what helps the walk. Here is the full ranking, built from what each product's own page states.

• 1. Vivacelle (shares an owner with this site): our pick. A serving is two capsules, and each serving lists NAD+ at 500 mg and quercetin at 250 mg. The 3-month supply is $117.00 as a one-time purchase, which works out to $1.30 per serving. Every order carries a 180-day money-back guarantee counted from the day it's delivered, and it's a one-time purchase with no subscription.
• 2. Tru Niagen 300mg: the cheapest per day, if you'll run a subscription. The 6-month subscription works out to $1.08 per serving as the page states it, and a serving is one vegetarian capsule listing NIAGEN (nicotinamide riboside chloride) at 300 mg. The page does not state a guarantee, and the one-time price for a 1-month supply is $49.00.
• 3. Stem Cell Renew: a formula with a long list of stated ingredients, and a 2-month supply that works out to $1.97 per serving. A serving is 2 capsules listing Coenzyme Q-10 at 100 mg, organic goji berry at 150 mg, ginkgo biloba leaf powder at 120 mg and more besides. The 2-month supply is $118.00, working out to $1.97 per serving, and it carries a 180-day money-back guarantee as the page words it.
• 4. Elevate NAD+: the most expensive per day in this lineup. One jar costs $89.95 and works out to $3.00 per serving, and a serving is 1 capsule listing a 300 mg NAD Support Blend and a 150 mg Adaptogenic Longevity Blend. Its guarantee runs 90 days, shorter than the 180 days on Vivacelle (shares an owner with this site), Stem Cell Renew and Longevity Activator.
• 5. Longevity Activator: the page keeps its numbers to itself. The 3-month supply is $147.00, but the product page does not state the serving size, the servings per container, or the ingredient amounts. It does carry a 180-day money-back guarantee and free U.S. shipping on all orders.

What is NAD+, and why does it matter more with each birthday?

NAD+ is a coenzyme your body uses for cellular energy production, DNA repair, and hundreds of enzyme reactions, and the general agreement is that the body's supply slides as the years add up.

Here is the plain version. Your repair genes did not die; they ran out of fuel, and that fuel is NAD+. NAD+ is a required substrate for the enzymes called sirtuins; without the fuel, they cannot work. Studies find older brains and muscles tend to have less of it, even though blood levels hold steady with age. In an imaging study of healthy people, older adults had less NAD+ in the brain than younger adults, and in a cross-sectional study, older adults had lower NAD+ in skeletal muscle, with the lowest levels in those who were physically impaired.

Most supplements on the market don't hand you NAD+ itself; they supply precursors such as nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN) that the body converts into NAD+. Clinical trials have shown that NR supplementation raises NAD+ levels by about 40%. Some products use liposomal delivery to protect the ingredients from digestive enzymes and improve absorption, and third-party testing is used in this category to verify purity, potency and safety. Vivacelle takes a different road: its page lists NAD+ itself at 500 mg per serving, built around that fuel plus two plant helpers for the repair genes.

What does each bottle cost per day?

Vivacelle's 3-month supply works out to $1.30 per serving, the lowest one-time price per serving on this list. Stem Cell Renew's best is $1.97, Elevate NAD+'s best is $2.55, and Tru Niagen's one-time is $1.63. Only Tru Niagen's subscription rate of $1.08 beats it.

Price per day is the number no ranking page gives you, so here it is, worked from each product page's own figures.

If you're willing to run a subscription, Tru Niagen's 6-month plan states $1.08 per serving, though its page doesn't state a guarantee. Vivacelle asks no subscription at all; it's a one-time purchase, period. Even its smaller 2-month supply works out to $1.63 per serving. Longevity Activator charges $147.00 for a 3-month supply without stating the servings per container, so its page doesn't give you a per-day cost.

What exactly is in each formula?

Vivacelle lists NAD+ itself at 500 mg per serving plus quercetin at 250 mg, while the others lean on a precursor or on blends: Tru Niagen on NIAGEN (nicotinamide riboside chloride) at 300 mg per serving and Elevate NAD+ on a 300 mg NAD Support Blend with a 150 mg Adaptogenic Longevity Blend. The table puts the stated doses side by side.

One of Vivacelle's plant helpers is quercetin, listed at 250 mg per serving. In cell studies, quercetin inhibited CD38, and inhibiting CD38 raised the NAD+ inside cells, which is the reason that helper is in the bottle. A bottle holds 30 servings and comes as 60 capsules, taken as a serving of two capsules. Longevity Activator's page does not state its ingredient amounts, so its page doesn't tell you what you're buying or how much of it.

What are the guarantees and shipping terms?

Vivacelle, Stem Cell Renew and Longevity Activator each carry a 180-day money-back guarantee, Elevate NAD+ carries 90 days, and Tru Niagen's page doesn't state one.

You've been burned by refund windows before, so here are the terms as arithmetic. Vivacelle: 180 days from delivery, free shipping on every order, no subscription to unwind. Stem Cell Renew: 180-day guarantee, with free shipping included on all multi-bottle orders. Tru Niagen: free U.S. shipping on every order, always, but no stated guarantee.

What does the research actually show?

Human studies show older brains and muscles tend to carry less NAD+, and cell and animal studies suggest the age-related decline is reversible. That is as far as the evidence goes, which is further than most ranking pages take it.

First, the human findings, named as human. In an imaging study of healthy people, older adults had less NAD+ in the brain than younger adults. In a cross-sectional study, older adults had lower NAD+ in skeletal muscle than younger adults, and the lowest levels were in older adults who were physically impaired. And one honest wrinkle: across seven independent human cohorts, whole-blood NAD+ levels stayed stable with age. The drop shows up in brain and muscle, not necessarily in a blood draw, which is why nobody at your kitchen table can test it away.

Now the lab findings, named as lab findings. In cell studies, quercetin inhibited CD38, and inhibiting CD38 raised the NAD+ inside cells. In old mice, raising NAD+ restored the cells' energy-making machinery to that of a young mouse, and its authors call the age-related decline apparently reversible. Apparently reversible. That is the authors saying the drain has a tap. The findings do not promise a cure, and this page won't dress it up as one. It is the reason getting the fuel back is worth your mornings.