Frequently Asked Questions

NADH is the reduced, active form of NAD+ meaning it's ready to produce energy immediately without any conversion. NAD+ is the oxidized form your body must first convert before it can generate ATP. NMN (nicotinamide mononucleotide) is a precursor your body has to convert NMN into NAD+, and then convert NAD+ into NADH before any energy is produced. That's two extra steps, each with diminishing efficiency. PureNADH skips all of that and delivers the end product your mitochondria actually use.

Caffeine stimulates your nervous system it borrows energy and you pay it back with crashes. PureNADH works at the cellular level, fueling your mitochondria to produce real ATP energy. No spike, no crash, no jitters. You're restoring a natural process that declines with age, not masking fatigue with a stimulant.

Yes most brands offer just 5-20mg per capsule. 100mg is the dose used in clinical research and recommended by the scientists who developed PureNADH. Lower doses may not deliver enough NADH to make a noticeable difference, especially since some is always lost during digestion even with acid-resistant capsules.

Most Amazon NADH brands offer 5-20mg of unstabilized NADH in standard capsules meaning much of it degrades before it reaches your cells. PureNADH delivers 100mg of 99%-pure, double-stabilized, acid-resistant NADH per capsule. At $1.00/day on the 90-day subscription, it's actually the best value per milligram of NADH that works.

NADH is extremely sensitive to stomach acid. Standard capsules dissolve in your stomach, exposing the NADH to acid that destroys it before it can be absorbed. PureNADH uses specially designed acid-resistant capsules that pass through the stomach intact and only dissolve in the small intestine where NADH is actually absorbed into your bloodstream.

NADH degrades rapidly when exposed to light, heat, or moisture. PureNADH uses a patent-pending two-step process: first, the NADH is freeze-dried to remove all moisture; then it's shielded with cyclodextrin a natural protective molecule that creates a stable molecular cage around each NADH particle. This keeps it potent from manufacturing all the way to absorption.

NADH is not a vitamin it's a coenzyme your body produces naturally and uses to generate ATP (cellular energy). While trace amounts exist in foods like meat and fish, they're destroyed by cooking and stomach acid. There's no practical way to get a clinically meaningful dose from diet alone, especially as your body's own production declines with age.

PureNADH was developed over 10+ years by a team of PhDs and pharmacists who specialize in NADH research. Unlike most supplement brands, we own our production facility and in-house laboratories the formula isn't licensed, copied, or outsourced. Every step from formulation to shipping happens under our direct control.

Take one capsule first thing in the morning on an empty stomach with a glass of water. Wait at least 30 minutes before eating or drinking anything other than water. This ensures optimal absorption. Some customers who exercise early take it 30 minutes before their workout.

Most customers notice the afternoon crash fading within the first two weeks. The effect builds as your cellular NADH levels restore, so give it a full month for the complete picture. And you're covered either way: if you don't feel a difference, the 100-day money-back guarantee has you.

One active ingredient: 100mg of 99% pure, double-stabilized NADH, protected by cyclodextrin (a natural stabilizing molecule) inside an acid-resistant capsule. No caffeine and no stimulants. Every batch is independently lab-tested for purity.

Yes. PureNADH works through a completely different mechanism and has no known interactions. Many customers still enjoy their morning coffee they just find they need less of it. You can take it alongside B12, magnesium, CoQ10, or any other supplements.

NADH is a naturally occurring molecule in every cell of your body you're not introducing anything foreign. PureNADH has been used by over 100,000 customers with no reported adverse effects. It's manufactured in a GMP-certified, ISO 22000-compliant facility and every batch is independently tested for purity, heavy metals, and contaminants.

Actually, people over 50 often see the most dramatic results. Your body's natural NADH production declines significantly with age that's a major reason energy, focus, and recovery all decrease as you get older. PureNADH restores what your body can no longer produce efficiently on its own. Many of our most enthusiastic customers are in their 50s, 60s, and 70s.

PureNADH isn't a medication there's no dependency. However, since your body's NADH production naturally declines with age, most customers choose to continue because they enjoy how they feel. Think of it like charging your phone: you don't have to charge it every day, but it works a lot better when you do.

Choose a 30, 60, or 90-day supply and it ships automatically right before you run out delivery frequency matches your package size. Subscribers save up to 40%, with the 90-day plan working out to just $1.00/day. You can manage everything from your account portal.

Yes. You can switch package size, skip a delivery, pause, or adjust timing anytime from your account portal or just message our support team and we'll handle it for you.

Absolutely. You can pause, skip, change frequency, or cancel your subscription at any time no commitments, no penalties. Most customers stay because they feel the difference, not because they're locked in.

Your order ships free from our U.S. warehouse and typically arrives at your door in 3-5 business days. You'll receive a tracking number as soon as it ships.

The moment your order ships, you'll get an email with your tracking number so you can follow the package door to door. If you ever lose the email, our support team can resend it in minutes.

Right now we ship within the United States only free on every order. Customers in Europe can order from our European store at purenadh.de.

Your first order is covered by our 100-day money-back guarantee. If you don't feel a noticeable difference in your energy, focus, or clarity, contact us for a full refund no return required. We'd rather you try it risk-free than wonder "what if."

Simple: try PureNADH for up to 100 days from your first order, and if you're not feeling the difference, email support@purenadh.com for a full refund. No return shipment, no forms, no questions asked.