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 fueling your body's own energy production, not masking fatigue with a stimulant.

Yes, most brands offer just 5-20mg per capsule. 100mg is the dose recommended by the scientists who developed PureNADH, sized to account for the NADH that's always lost during digestion, even with acid-resistant capsules. Lower doses may not deliver enough NADH to make a noticeable difference.

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 about $1 a day on subscription, no brand in our June 2026 comparison delivers more NADH per dollar.

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 breaks down when it meets moisture, oxygen, light or stomach acid, so PureNADH protects it twice. First, we start with freeze-dried NADH and bind each molecule into an amorphous complex with a cyclodextrin, a ring-shaped sugar, dispersed and kept apart so oxidation cannot spread from one molecule to the next, then dry it under vacuum at low temperature. Second, the complex goes into an acid-resistant capsule designed to open past the stomach. The method was filed for patent on 6 August 2026 and is patent-pending. An independent laboratory measured how much NADH stayed in our stabilized formulation every month from March to June 2026: every reading within 5% of the first. Same NADH, same protection, in every batch. How we got here.

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 meaningful dose from diet alone.

PureNADH was developed by our founder, Esef Cosic, with Emilija S. Aleksovska, M.Pharm. and Prof. Midhat Jasic, in our own laboratory at Pharm Scale, our GMP-licensed factory in Bosnia and Herzegovina. We started testing NADH in August 2024. In mid-2025 an independent laboratory measured our first unprotected batch: much of the NADH was already gone. That batch never reached a customer. The stabilization method that came out of that work was filed for patent on 6 August 2026 and is patent-pending. Nothing is licensed from anyone or bought ready-made: formulation and production happen in our own facility. What we do not do ourselves is grade the result: purity and stability are checked by independent laboratories. Read the founder's letter.

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 we're not aware of interactions at typical doses - if you take medication, check with your physician. 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 isn't something foreign you're adding to your body. It's a molecule that already exists in every one of your cells, powering them all day long. The real challenge with NADH isn't safety - it's delivery: the molecule is fragile, and stomach acid breaks much of it down before it can be absorbed. That's exactly where PureNADH comes in - our patent-pending double stabilization protects the molecule so it can reach the small intestine, where absorption happens. NADH has been well tolerated in published studies, and every batch is made in an ISO 22000 certified, GMP-licensed facility and independently tested for purity, heavy metals, and contaminants. As with any supplement, check with your physician if you're pregnant, nursing, or taking medication.

Many of our most enthusiastic customers are in their 40s, 50s, 60s and 70s. Those tend to be the most demanding decades of life - career, family, everything at once - and demand is exactly what burns through cellular fuel. NADH is the fuel every cell uses daily, at any age. As with any supplement, results vary.

PureNADH isn't a medication there's no dependency. Most customers simply 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 on Manage subscription (enter the email you ordered with and we send you a 6-digit code, no password needed).

Yes. You can switch package size, skip a delivery, pause, or adjust timing anytime on Manage subscription 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. Do it yourself on Manage subscription or email support@purenadh.com. 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.

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.