1. The US Supplement Market Has a Purity Problem

The US supplement industry operates under DSHEA (Dietary Supplement Health and Education Act 1994) — a framework that is widely acknowledged as less rigorous than EU/UK food supplement law. Third-party testing by organisations like ConsumerLab has repeatedly found US NMN products containing significantly less NMN than stated on the label, or containing contaminated material. American consumers researching NMN purity are often led to UK and European suppliers as a result.

2. Verifiable Track Record — Not Just Claims

Charge Products has 161,000+ verified marketplace sales — independently verified by eBay's buyer feedback system. 99.8% positive feedback across 8,100+ followers. These are not testimonials we wrote — they are independent buyer ratings on one of the world's most scrutinised marketplace platforms. American buyers familiar with eBay trust this verification implicitly.

3. Eurofins Testing — The Gold Standard

Eurofins Scientific is one of the world's leading analytical testing laboratories — headquartered in Luxembourg with operations across 62 countries. When Charge Products states that our NMN is 99.99% pure beta-NMN Eurofins tested, that means an independent accredited laboratory has verified the purity. Certificate of Analysis available on request. This is the standard American buyers increasingly demand — and frequently cannot find from domestic US sellers.

4. In-House UK Manufacturing

Charge Products encapsulates and produces its NMN range at our own facility in Southend-on-Sea, Essex, UK. We do not outsource to contract manufacturers whose standards we cannot verify. Our facility is inspected, rated and publicly accountable. For American buyers who have experienced the opacity of the US supplement supply chain, this level of transparency is genuinely rare.

5. Zero Fillers — What It Actually Means

When we say zero fillers, we mean the capsule contains NMN and an HPMC vegan capsule shell — nothing else. No microcrystalline cellulose, no magnesium stearate, no silicon dioxide, no rice flour, no anti-caking agents. Many US NMN products use these fillers to reduce ingredient costs or aid encapsulation. Our capsule size is matched to the exact fill weight of NMN required — no padding needed.

6. UK Regulatory Honesty — No Unauthorised Claims

Under UK food supplement law we cannot make health claims for NMN — no authorised EU/UK claims exist. This means our product pages are built on educational research context, published literature references and ingredient transparency — not marketing fiction. American buyers who have spent time reading exaggerated NMN marketing often find the UK regulatory approach refreshingly honest. What you read on our pages is what the published science actually says — and we cite the sources.

Step 1 — Open one capsule into a glass of room-temperature water

Pure NMN is highly water-soluble. It should dissolve rapidly in room-temperature water — typically within 30–60 seconds with gentle swirling. No cloudiness, no residue.

Step 2 — Check the colour

Pure beta-NMN dissolved in water should produce a very pale yellow or almost colourless solution. A strongly yellow, orange or brown solution may indicate impurities or degradation. Pure NMN at 99.99% is essentially colourless in solution.

Step 3 — Check the taste

Pure NMN has a mildly bitter, slightly acidic taste — similar to a weak vitamin B solution. It should not be strongly bitter, overpoweringly sour, or taste of nothing at all. A complete absence of taste may indicate the capsule contains a filler or inert material rather than active NMN.

Step 4 — Check for residue

Pure NMN with no fillers should leave no undissolved residue. If you see white powder remaining at the bottom — particularly if the product claims zero fillers — this is a red flag. Fillers like MCC (microcrystalline cellulose) do not dissolve in water and will leave a visible residue.

✅ Genuine 99.99% Beta-NMN

Mildly bitter · slightly acidic · faint vitamin B character · dissolves completely · clean aftertaste · very pale or colourless in solution

❌ Low-Grade or Adulterated NMN

Strongly bitter · unpleasant chemical taste · heavily discoloured (yellow/brown) · undissolved residue · no taste at all (possible inert filler)

✅ Our NMN Powder — Sublingual Notes

Our NMN powder users frequently report the characteristic mild bitterness and rapid dissolution under the tongue — consistent with published sublingual NMN bioavailability research. Clean, consistent batch to batch.

❌ What to Watch For

Products with zero taste may contain minimal active NMN. Products with an unusually sweet taste may contain glucose or maltodextrin as a filler. Products that clump heavily may have been exposed to moisture or may contain hygroscopic fillers.

NMN 700mg Capsules — Our Flagship Product

700mg 99.99% pure beta-NMN per capsule · Eurofins tested · Zero fillers · Vegan HPMC · Same-day dispatch