FLUSH FORM B3 · EUROFINS TESTED NMN · NO FILLERS · UK SINCE 2016

NMN 400mg & B3 Nicotinic Acid 100mg Capsules

Two Ingredients · Size 0 Vegan Capsule · One A Day · Six Authorised Niacin Claims

Food supplement — not a medicine.

QUICK ANSWER

Each 500mg capsule holds 400mg NMN and 100mg nicotinic acid — two ingredients in a size 0 vegan HPMC shell, no fillers or binders. One capsule daily with food. The nicotinic acid is the flush form of vitamin B3, so expect a flush; taking it on a full stomach is what keeps it low. The niacin carries six authorised health claims. NMN has none, so it is described by specification only.

🔥 THIS ONE FLUSHES — READ BEFORE ORDERING

This is nicotinic acid, the flush form of vitamin B3. At 100mg roughly half of people will feel a flush — warmth, redness, tingling or itching across the face, neck and chest. It usually begins 10 to 20 minutes after taking it and passes within about two hours.

It is harmless and it is not an allergic reaction. Nicotinic acid triggers the release of prostaglandins in the skin, which widen the small blood vessels near the surface. More blood flows close to the skin, and that produces the warmth and colour. It is the expected effect of this form of B3, not a fault with the product.

To keep it as low as possible:

▸ Always take it on a full stomach — the single biggest factor, because slower absorption blunts the peak

▸ Take it in the morning with a proper meal rather than a snack

▸ Avoid alcohol and hot drinks around the time you take it — both widen blood vessels themselves

▸ Never take more than one capsule a day

If you would rather not flush at all, this is the wrong product. Choose our B3 Nicotinamide 500mg capsules instead — same vitamin, same six authorised claims, no flush.

What Niacin Does — All Six Authorised UK Health Claims

Niacin carries six authorised claims on the GB register. Most listings use two or three. Here are all six in their exact authorised wording, each with a plain explanation of what the wording actually means — because the approved phrasing is precise rather than clear.

Why the wording is fixed: these phrases cannot be reworded or made to sound better — they are the exact authorised text, and anything more appealing would be an unauthorised claim. NMN has no authorised claims at all, so nothing here claims anything for it.

The NMN — Measured, Not "Conforms"

Most supplement certificates report heavy metals as a pass or fail with no numbers behind it. Ours were measured by Eurofins, an independent UK laboratory, by ICP-MS. Here are the results.

β-NMN is the form that occurs naturally in human cells. Lower-grade material can contain α-NMN or a mix of isomers — the same molecule by formula, but not the form the body produces. Certificates for both ingredients available on request.

Nicotinic Acid Or Nicotinamide? Not Interchangeable

We publish the upper level rather than hiding it. The 10mg figure was derived using flushing as the measured endpoint, not organ damage, which is why almost every nicotinic acid product on the market sits well above it — including this one at 100mg. That context matters, and a listing that states no maximum at all is not being straight with you. Genuine concern attaches to sustained gram-level intakes, which is why the one-a-day ceiling here is not a suggestion.

Full Specification

Pack Sizes & Cost Per Capsule

One capsule a day, so a pack size is also a supply length. We publish the per-capsule cost so you can see exactly what you are paying rather than working it out yourself.

Subscribe and save a further 10% on any pack size. Klarna and Shop Pay spread orders over £50 across three instalments.

👋 First Time With Flush Niacin? Start Here

Buy the 10-capsule sample first. Around half of people flush at this strength and half don't, and there is no way to know which you are until you try it. Ten capsules tells you for a few pounds instead of committing to a six-month pack.

Take the first one on a weekend morning, after a full breakfast. Not before work, not on an empty stomach, not before anything where going pink would bother you. You will know within twenty minutes how you respond.

What to expect if you do flush: warmth and redness across the face, neck and chest, sometimes tingling or itching. It builds over about ten minutes, peaks, then fades. Most people are back to normal well inside two hours. It is uncomfortable rather than painful, and it is not dangerous.

If it settles, move up to a bigger pack. If it doesn't, switch to the no-flush nicotinamide version — same vitamin, same six authorised claims, no flush. You lose nothing.

📋 How To Take It

1. One capsule a day. Never more. One capsule gives 100mg of nicotinic acid — already ten times the published upper level. Two would be twenty times, and a considerably stronger flush.

2. Morning, on a full stomach. A proper meal, not a snack. This is what keeps the flush low to none for most people.

3. Skip alcohol and hot drinks around it. Both widen blood vessels themselves and stack with the niacin.

4. Expect the flush the first few times. Many people find it lessens as they continue. If it stays uncomfortable, this form is not for you.

5. Keep the pack in the fridge and swallow whole with water.

⚠️ DO NOT BUY THIS IF

▸ You have liver disease of any kind — nicotinic acid is contraindicated

▸ You have an active stomach ulcer — nicotinic acid is documented to activate peptic ulcers

▸ You have gout — niacin competes with uric acid for removal by the kidneys

▸ You have diabetes — niacin can raise fasting blood sugar

▸ You have unstable angina or a recent heart attack

Speak to your GP first if you:

▸ Take statins — the combination carries a raised risk of muscle problems

▸ Take blood pressure medication, blood thinners or thyroid medication

▸ Drink more than moderately, or have a history of gallbladder problems

Adults 18+ only. Not suitable during pregnancy or breastfeeding. Stop taking it and seek advice if you get severe or prolonged flushing, yellowing of the skin or eyes, persistent nausea, dark urine or unusual muscle pain or weakness.

Frequently Asked Questions

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Why Buy From Charge Products

We fill these capsules ourselves at our own 5 Star Food Hygiene rated facility in Southend-on-Sea, using the same Eurofins-tested NMN we sell as raw powder. No middlemen and no mystery blends. Big Idea Services Ltd, Companies House No. 11645389. Every credential here can be checked independently.

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Related Products

Pure NMN with no B3, the no-flush form, and the rest of the range.

New to this? Read our full guide to NMN, vitamin B3 and the niacin flush.

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Disclaimer: Food supplement — not a medicine. Not intended to diagnose, treat, cure or prevent any disease or medical condition. The six authorised EU/UK health claims for niacin are stated above in their exact authorised wording under retained Regulation EC No 1924/2006; no other claims are made, and no health claims are made for NMN, for which none are authorised. Take one capsule daily with food. Never exceed one capsule a day. This product contains nicotinic acid, the flush form of vitamin B3, and flushing is an expected effect. Do not take this product if you have liver disease, an active peptic ulcer, gout, diabetes, unstable angina or a recent myocardial infarction. Consult your GP before use if you take statins, blood pressure medication, anticoagulants, thyroid medication or any other prescribed medicine, if you drink alcohol more than moderately, or if you have a history of gallbladder disease. Adults 18+ only. Not suitable during pregnancy or breastfeeding. Stop taking it and seek medical advice if you experience severe or prolonged flushing, yellowing of the skin or eyes, persistent nausea, dark urine, or unusual muscle pain or weakness. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Keep out of reach of children. Store in the fridge — NMN degrades with heat and humidity. Specification figures are taken from the manufacturers' technical documentation and the Eurofins certificate of analysis; the batch-specific certificate should always be referenced and is available on request. Supplied by Big Idea Services Ltd t/a Charge Products · Co. No. 11645389 · VAT GB11645389 · Unit 1, 8 Towerfield Road, Towerfield Industrial Estate, Southend-on-Sea, Essex SS3 9QE.