Every ingredient, every number, every test.
Most gum labels hide behind a "proprietary blend" and a flavour name. This page is the opposite: every ingredient, the exact doses, the piece size, and what an independent laboratory found when it assessed the formula. Where a number is still missing, it says so, because we are waiting on the lab, not because we are hiding it.
The short version: each piece of Minvelle gum contains 5.7 mg of nano-hydroxyapatite (0.30% of piece weight), 817 mg xylitol and 285 mg erythritol in a 1.9 g piece. One box holds 18 pieces, one a day. The full 14-ingredient formula and the independent lab assessment are published below.
Use, price, delivery: one piece a day, after a meal, chewed for at least 20 minutes. One box costs €24.99, 2 boxes €39.99, 4 boxes €64.99 and 6 boxes €94.99; the subscription is 2 boxes every 4 weeks for €29.99 with free shipping. Minvelle ships to 35 countries, free from €29 (€3.99 below that), and delivery takes 9 to 15 business days from dispatch.
Availability: in stock (Mastic Mint), ships from our fulfilment partner. Is Minvelle legit? Yes: Minvelle is a sugar-free chewing gum sold by MaxLife Trading GmbH, a registered Austrian company (FN 644136i, VAT ID ATU81601278), and our is Minvelle legit page shows how to check both numbers yourself. Where to buy Minvelle? On minvelle.com, which ships to 35 countries; our where to buy hydroxyapatite gum guide goes country by country.
Published-Number Guarantee: if any number on our label or our transparency page differs from the documents we publish, we refund your last order, opened or not.
Max, founder · page last reviewed 8 October 2026
This page proves three things: the dose (5.7 mg nano-hydroxyapatite per piece), the batch certificate (CDT25081505COS, downloadable), and how Minvelle compares against all 15 tested brands in our comparison database.
Product facts checked on 2026-10-07
- 5.7 mg nano-hydroxyapatite per piece
- 18 pieces per box
- €24.99 for one box
- €29.99 subscription: 2 boxes every 4 weeks
- Batch certificate: CDT25081505COS, downloadable
- Ships to 35 countries
Safety: what is documented. The EU Scientific Committee on Consumer Safety adopted its latest opinion on hydroxyapatite (nano) in June 2025 (SCCS/1677/25), finding it safe up to 29.5% in toothpaste and 10% in mouthwash; the law in force, Regulation (EU) 2024/858, still caps it at 10% and 0.465%. Neither covers gum. This formula also has an independent lab assessment, published further down this page. The regulatory status and the gum-specific evidence are laid out in what the science and EU regulators actually say.
Minvelle is a chewing gum brand from Austria (MaxLife Trading GmbH): sugar-free gum with 5.7 mg nano-hydroxyapatite per piece, sold at minvelle.com. It is not related to Minivelle, the estradiol patch.
The numbers are above. The gum is here.
2 boxes, 36 pieces, €39.99. Free shipping from €29. 30-day refund on unopened boxes. Order two, chew the first, the second stays refundable while you decide.
Published-Number Guarantee: if any number on our label or our transparency page differs from the documents we publish, we refund your last order, opened or not.
Order the gumHow to check any gum in 60 seconds.
Before buying any hydroxyapatite gum, ours included, run this checklist. Most brands skip at least one line.
Dose per piece, not per box. A brand that only states a per-box total is hiding the per-piece number. Minvelle: 5.7 mg per piece, published above.
Particle size, in nanometres. "Nano" without a measured length and width is a marketing word, not a spec. Minvelle: rod-shaped, 200 nm long, 20 to 50 nm wide.
Where xylitol sits on the ingredient list. Ingredients are listed by weight, so xylitol near the top means it is doing real work, not just flavouring. Minvelle: first ingredient, 817 mg per piece.
A downloadable certificate. A batch certificate of analysis or safety assessment you can open and read, not a claim you take on faith. Minvelle: CDT25081505COS, below.
The specs, at a glance.
Nano-hydroxyapatite, measured.
Each piece carries 5.7 mg of nano-hydroxyapatite, the same mineral family your enamel is built from. Hydroxyapatite has been studied at the ingredient level in Japan since 1980. The first hydroxyapatite toothpaste launched there in 1980 (Sangi, company history); Japan approved the ingredient as an anti-caries agent in 1993 (O’Hagan-Wong et al., Odontology 2022). Ours is synthetic and lab-made, with no animal source at any stage; the manufacturer confirmed that in writing in August 2026.
Why put it in a gum at all? Contact time. Toothpaste is in your mouth for about two minutes. A piece of gum is chewed for twenty or more, and chewing drives saliva flow, which is what moves minerals onto the tooth surface. The gum sits alongside fluoride brushing, it does not replace it.
✓ Particle size: rod-shaped, 200 nm long, 20–50 nm wide, per supplier specification (updated August 2026)The particle width of 20–50 nm sits inside the EU's 1–100 nm nanomaterial definition, so "nano-hydroxyapatite" is not just the common name here, it is the regulatory category, and we label it accordingly. The full explanation is in the FAQ below.
All fourteen, by weight.
| Ingredient | Organic | Role |
|---|---|---|
| Xylitol | organic | Sweetener, oral-health-studied polyol, 817 mg per piece |
| Erythritol | organic | Sweetener, 285 mg per piece |
| Chicle gum | organic | Plant gum base |
| Mastic gum | organic | Plant gum base (Chios mastic) |
| Coconut oil | natural | Softens the gum base |
| Spearmint oil | organic | Flavor; its terpenes (menthone, carvone, cineol) carry the freshness |
| Glyceryl monooleate | aid | Emulsifier, keeps the chew consistent |
| Calcium bentonite clay | natural | Texture and mineral |
| Fumed silica | aid | Anti-caking agent |
| Nano hydroxyapatite | the active | 5.7 mg per piece, the same mineral family your enamel is built from |
| Egg shell powder | natural | Natural calcium source (allergen: egg) |
| Spruce gum | organic | Plant gum base |
| Myrrh gum | organic | Resin |
| Acacia gum | organic | Binder |
One piece a day. A box lasts 18 days. A complement to fluoride brushing, not a replacement.
Independent safety assessment.
Independent safety assessment of the Minvelle nano-hydroxyapatite chewing gum formula · Shenzhen CDT Testing Technology Co., Ltd., report CDT25082608YRS, August 2025:
Not classified as hazardous under EU CLP Regulation (EC) No 1272/2008. No hazard labelling applicable.
Toxicology: clean across the board. Not classified for acute toxicity (oral, dermal, inhalation), skin or eye irritation, sensitisation, mutagenicity, carcinogenicity or reproductive toxicity.
REACH-clean. No candidate-list substances, no Annex XIV substances, no Annex XVII restricted substances.
Look up your batch.
Every box prints a batch number on the base. Find it here, with the certificate behind it.
| Batch number | Production period | Certificate of analysis |
|---|---|---|
| 20250815005SC08 | Produced August 2025 tested August 2025 |
CoA CDT25081505COS (PDF) Heavy metals and microbiology, all clean. |
| 20251025002SC07 | Produced October 2025 tested November 2025 |
CoA CDT25102502COS (PDF) Heavy metals and microbiology, all clean. |
Ready to try it?
Every number on this page is published, not printed once and forgotten.
What we do not claim.
No cure promises
We will not tell you this gum rebuilds enamel or fixes cavities, because no finished-product trial says so. That is the honest version, and it is the only one we sell.
What the evidence supports
Xylitol drives saliva flow within about 20 minutes of chewing, and saliva is the mechanism that carries minerals to the tooth surface. Documented in Dawes & Macpherson, Caries Research 1992, and the basis of the EU’s authorized health claim for sugar-free gum (Regulation 432/2012; EFSA Journal 2011;9(6):2266).
Not convinced? Fine.
If that is not enough for you, that is fine. 30-day money-back guarantee either way: send the unopened box back and you get a full refund.
Every citation, checked.
The audit
In August 2026 we resolved every checkable citation on this site against the National Library of Medicine’s records: 531 articles, 961 checkable references, plus every named study that carried no link at all. Author, journal, year and finding were matched to the sentence each one supports.
What we found and fixed
Not everything survived. We found references that did not check out: wrong attributions, broken identifiers, and claims that said more than their sources do. Every one was corrected or removed, and pages that needed substantial fixes carry their own corrections notes. We would rather show you the repair than pretend it was never needed.
So it stays true
Every new article is machine-checked against the medical literature before it publishes, and the full audit re-runs monthly. If you find a reference that does not hold up, tell us: max@minvelle.com. We fix it and note the fix.
Asked by people like you.
What is the dose of nano-hydroxyapatite per piece?
Is there a certificate for this batch?
What is in Minvelle gum?
Is it safe?
How do I buy it?
Do you ship to my country?
How much hydroxyapatite is in each piece?
Is Minvelle vegan?
Is the hydroxyapatite synthetic or animal-derived?
Is it sugar-free?
Why "nano" hydroxyapatite?
Report updates by email.
When this report changes, we log it: new batch certificate, updated spec, corrected value. Get the changes as they happen.