Every brand's numbers, disclosed or not.
Fifteen brands sell hydroxyapatite chewing gum online. Only two publish how much hydroxyapatite is actually in a piece. This table collects what every brand states publicly, and marks what they do not, so you can compare on facts instead of adjectives. Every cell links to its source.
The short version: Minvelle discloses 5.7 mg of nano-hydroxyapatite per piece and Crait discloses 70 mg of non-nano hydroxyapatite per gum piece (and 25 mg in its separate mints). Enamio, Underbrush, Dentagum, VanMan, Weldental, CaviChew, RevitaBite, Larineco, Halo, Kreain, Aurien, Gud Gum+ and ApaCare do not publish an amount. Nano and non-nano milligrams are not directly comparable (see note 1).
Maintained by Minvelle, which sells one of the products below. That is exactly why every cell is sourced: check us hardest. Corrections: max@minvelle.com
Methodology: every cell is copied from the brand's own published materials on the date stamped in its source column. Anything a brand does not publish is recorded as not disclosed, never estimated. Rows are re-checked on update days; entries are never silently edited.
Disclosure: this guide is by Minvelle. We make a remineralizing gum ourselves, held to the same standard this article applies: dose and lab certificate published.
Try Minvelle with 10% off30-day refund on unopened boxes · free EU shipping over €29
What each brand publishes
Why we list mg per piece, not %
A percentage tells you how much of the gum base is hydroxyapatite, not how much reaches your mouth. A 10% gum weighing 1 g delivers less than a 5% gum weighing 3 g. Milligrams per piece is the number you can compare across brands, and the only one you can check against a batch certificate. Minvelle: 5.7 mg nano-hydroxyapatite per piece, published and batch-certified.
All fifteen hydroxyapatite gum brands we track: nine checked 11 July 2026 (re-checked 1 Aug), Larineco and Halo added 22 August 2026, Kreain, Aurien and Gud Gum+ added 28 August 2026, ApaCare added 29 August 2026. Maintained by Minvelle.
| Brand | HAp per piece | Form & particle data | Full ingredient list | Lab report public | Studies cited on site | Money-back guarantee | Source |
|---|---|---|---|---|---|---|---|
| Minvelle | 5.7 mg nano-HAp 0.30% of a 1.9 g piece |
Rod-shaped, 200 nm × 20–50 nm (supplier-stated) disclosed: width inside the EU’s 1–100 nm nanomaterial definition |
Yes all 14, with per-piece weights |
Yes MSDS + batch CoA published (manufacturer redacted, disclosed) |
Partial pH study sourced; history claims being back-referenced |
30 days | transparency page |
| Crait | 70 mg non-nano HAp (gum) separate mints state 25 mg; see note 1 before comparing |
Non-nano (OMYADENT®) described as larger, surface-acting particles |
Yes 9 ingredients, no amounts |
No | No "studies show" without citations |
not disclosed | craitgoods.com checked 2026-07-11 |
| Enamio | not disclosed | Nano, 20 nm rod-shaped (stated) | Yes no amounts |
No "3rd-party tested" badge, no report |
Yes 14 studies linked; specific % claims on FAQ remain uncited |
30 days, first order only | enamiogum.com |
| Underbrush | not disclosed | Nano particle size not stated |
Yes no amounts |
No | Yes 39 numbered citations |
not disclosed | nathanandsons.com |
| Dentagum | not disclosed | Nano particle size not stated |
Yes no amounts |
Partial heavy-metal figures shown; report link not retrievable |
No "83% / 91% / 87%" shown without sources |
30 days claimed on product page; refund policy states 14 days, unopened | dentagum.co |
| CaviChew | not disclosed | Nano, ≤100 nm rod-shaped (stated) | Yes no amounts |
No | No refers to studies on "other remineralizing gums" |
not disclosed | Amazon listing |
| VanMan | not disclosed | Bovine-bone HAp nano/non-nano not stated |
Yes 6 ingredients, no amounts |
No | No | Yes, no time window stated | vanman.shop |
| Weldental | not disclosed | "Micro" HAp no numeric size given |
Yes no amounts |
No | No | Non-returnable on Amazon (food safety); site policy 30 days unused | weldental.com |
| RevitaBite | not disclosed | Nano particle size not stated; liquid-center, dentist-formulated |
Yes no amounts; liquid centre marketed as "proprietary" |
No | No dentist-formulated claims, no study citations found |
30 days money-back, "no questions" |
chewrevitabite.com checked 2026-07-11 |
| Larineco | not disclosed | Nano particle size not stated |
Yes no amounts |
not found (checked 2026-08-22) | No no citations or links on site |
30 days first purchase per household only |
buylarine.com checked 2026-08-22 |
| Halo | not disclosed | Nano particle size not stated |
Yes 10 ingredients, no amounts |
No none published |
No 48% and 99% figures footnoted to an unnamed human trial |
not disclosed | somethingnicecompany.com checked 2026-08-22 |
| Kreain | not disclosed | Nano particle size not stated |
Yes 15 ingredients, no amounts |
No no certificate of analysis found (checked 2026-08-28) |
Yes 39 citations; of the 18 carrying a checkable identifier, 8 did not resolve on 2026-08-28 |
60 days claimed on product page; refund policy states 30 days, unused, and excludes personal-care items | kreainco.com checked 2026-08-28 |
| Aurien | not disclosed | Nano particle size not stated |
Yes 12 ingredients, no amounts |
No no certificate of analysis found (checked 2026-08-28) |
No three papers shown as screenshots, not linked; none of them on gum |
60 days advertised; refund policy states 30 days and excludes personal-care goods | aurien.shop checked 2026-08-28 |
| Gud Gum+ | not disclosed | "Vegan hydroxyapatite" nano or non-nano not stated in the visible copy; "nhap" appears in the product URL and image filenames, and "Nano-Hydroxyapatite" in the Amazon listing URL |
No none on the brand’s own product page; the Amazon listing shows 6 ingredients, no amounts |
No ISO 22000 badge shown without a registrar; no report published |
No no study cited for the hydroxyapatite claim |
None: refund policy states no cancellation or refunds once the order has been placed | gudgum.in checked 2026-08-28 |
| ApaCare | not disclosed | "Tooth enamel minerals (hydroxyapatite)" named in the product description only; nano or non-nano not stated and no particle size given; the printed ingredient list names calcium carbonate, not hydroxyapatite |
Yes 9 ingredients; xylitol (56%) is the only one carrying an amount; hydroxyapatite is not among them |
No no certificate of analysis or safety data sheet published; the imprint states certification to DIN EN ISO 13485 (checked 2026-08-29) |
Yes the Studies tab links to two sections of apacare.com/research holding 6 and 5 studies, with destinations on PubMed, PMC, Nature and ScienceDirect; none of them tests a chewing gum |
None advertised; the statutory 14-day right of withdrawal applies, and sealed goods are excluded once the seal has been removed | apacare.com checked 2026-08-29 |
Note 1, read before comparing milligrams: nano and non-nano hydroxyapatite are different materials in practice. Nano particles are far smaller, so a milligram of nano-HAp contains vastly more particles and surface area than a milligram of non-nano HAp, and the two interact with enamel differently. Crait's 70 mg non-nano and Minvelle's 5.7 mg nano are both honest disclosures of different things; neither number is "bigger" in any meaningful head-to-head sense.
Note 2: compiled July 2026 from each brand's own website, label imagery, or Amazon listing; rows for Crait, Enamio, Underbrush, Dentagum, VanMan and Weldental were re-checked live on 1 August 2026 and no disclosure had changed. "Not disclosed" means we could not find the figure published anywhere by the brand. Amazon-only facts we could not verify directly were left out rather than guessed. Prices were excluded because pack sizes and channels vary too much for a fair per-piece comparison; check each shop.
What you can check yourself
A dose or a claim is only worth what you can verify. This scorecard records, for every brand, whether the dose is disclosed, how many documents you can actually download, whether a guarantee exists in writing, and whether a review count can be checked on a third-party platform rather than an on-site widget. Every cell was checked on 11 July 2026.
How to read this: "Documents you can download" counts only files a customer can actually click and save (a lab report, MSDS or CoA). A certificate shown as an on-page image does not count, because it cannot be independently opened or checked. "Third-party platform" means a site the brand does not control, such as Amazon or Trustpilot, where the review count is publicly visible; on-site Loox or Judge.me widgets are excluded because the brand sets what they show. Where we could not find something, we wrote "not found" with the date rather than guessing.
Hydroxyapatite gum verifiability scorecard: all fifteen hydroxyapatite gum brands we track; the first nine had every cell checked 11 July 2026, Larineco and Halo were added 22 August 2026, Kreain, Aurien and Gud Gum+ 28 August 2026, ApaCare 29 August 2026. Maintained by Minvelle.
| Brand | Dose disclosed | Documents you can download | Guarantee in writing | Review count verifiable on a third-party platform | Source |
|---|---|---|---|---|---|
| Minvelle | Yes 5.7 mg nano per piece |
2 MSDS + batch CoA (PDF) |
Yes 30-day, unopened boxes |
No Trustpilot profile live, no reviews yet (cell updated 2026-07-27) |
transparency page checked 2026-07-11 |
| Crait | Yes 70 mg gum / 25 mg mints |
0 | not found (checked 2026-07-11) | Yes Amazon listings; exact count not machine-readable |
craitgoods.com checked 2026-07-11 |
| Enamio | not disclosed | 0 | Yes 30-day, first order only |
No on-site widget only |
enamiogum.com checked 2026-07-11 |
| Underbrush | not disclosed | 0 | No gum is final sale; guarantee only via a paid add-on |
No on-site widget only |
nathanandsons.com checked 2026-07-11 |
| Dentagum | not disclosed | 0 a CoA is shown as an on-page image, not downloadable |
Conflicting "30-day risk-free" on page; refund policy allows unopened only (EU 14 days) |
Yes Amazon: 644 reviews, 4.4★ (site widget claims 733) |
dentagum.co · Amazon checked 2026-07-11 |
| CaviChew | not disclosed | 0 | not found (checked 2026-07-11) | Yes Amazon: 193 reviews, 4.3★ |
Amazon listing checked 2026-07-11 |
| VanMan | not disclosed | 0 | Yes full refund, no time window stated |
Yes Amazon: 135 ratings, 3.5★ |
vanman.shop · Amazon checked 2026-07-11 |
| Weldental | not disclosed | 0 | Yes 30-day, unused only |
Yes Amazon: 71 ratings, 4.4★ |
weldental.com · Amazon checked 2026-07-11 |
| RevitaBite | not disclosed | 0 | Yes 30-day money-back, "no questions" |
No on-site testimonials only |
chewrevitabite.com checked 2026-07-11 |
| Larineco | not disclosed | 0 | Yes 30-day, first purchase per household only |
No on-site widget only |
buylarine.com checked 2026-08-22 |
| Halo | not disclosed | 0 | not found (checked 2026-08-22) | No on-site widget only: 4.23★ across 69 reviews |
somethingnicecompany.com checked 2026-08-22 |
| Kreain | not disclosed | 0 | Conflicting "60-day, 100% money-back guarantee" on the product page; refund policy allows 30 days, unused, and excludes personal-care items |
Yes Trustpilot: 141 reviews, 4.2★ |
kreainco.com · Trustpilot checked 2026-08-28 |
| Aurien | not disclosed | 0 | Conflicting "60-Day Money Back Guarantee" on the homepage; refund policy allows 30 days and excludes personal-care goods |
Yes Trustpilot: 32 reviews, 2.9★ (site widget claims 4.9★ across 3,654) |
aurien.shop · Trustpilot checked 2026-08-28 |
| Gud Gum+ | not disclosed | 0 | No refund policy states no cancellation or refunds once the order has been placed |
Yes Trustpilot: 28 reviews, 3.8★; Amazon: 79 ratings, 3.6★ |
gudgum.in · Trustpilot · Amazon checked 2026-08-28 |
| ApaCare | not disclosed | 0 no certificate of analysis or safety data sheet; a study-overview brochure is downloadable as a PDF |
Yes statutory 14-day right of withdrawal, stated in the cancellation policy; no money-back guarantee advertised; sealed goods excluded once opened |
Yes Amazon.de: 504 ratings, 4.5★ (six-tin listing); Trustami widget on the product page: 462 ratings, 4.6★; the shop’s own review widget shows 1 |
apacare.com · Amazon checked 2026-08-29 |
A note on "best gum" rankings
A note on "best gum" rankings: as of July 2026, every #1 ranking we could find in this category was published by the brand it ranks, or by an affiliate site that does not disclose ownership. This database is our answer to that: every cell has a source, our own row included, and the change history is public.
Use this data
The table is free to reuse, including commercially, under CC BY 4.0: just credit it. Writers can copy the citation below. Developers and researchers can pull the CSV on GitHub or the machine-readable version (JSON), where the commit history doubles as a public record of when each brand's disclosure changed. You can link straight to a brand's row: #underbrush, #crait, and so on.
Minvelle (2026). The Hydroxyapatite Gum Database. minvelle.com/pages/hydroxyapatite-gum-database
What the science actually says about HAp gum
The one clinical trial that exists for hydroxyapatite gum
Porciani PF, Chazine M, Grandini S. "A clinical study of the efficacy of a new chewing gum containing calcium hydroxyapatite in reducing dentin hypersensitivity." Journal of Clinical Dentistry, 2014;25(2):32-36. PubMed 25122980.
Double-blind, 107 adults, a gum with 12 mg calcium hydroxyapatite per stick chewed as two sticks three times daily for two weeks. Result: statistically significant reduction in dentin hypersensitivity versus placebo on tactile, air-blast and cold-water tests.
What that means, and what it does not. This trial is the only peer-reviewed clinical study we could find on hydroxyapatite in gum form specifically. Its gum, dose and chewing protocol differ from every product in the table above, including ours. No brand in this database, Minvelle included, has run a clinical trial on its own finished product. The stronger evidence base for hydroxyapatite sits in toothpaste research, which is why every serious brand, again including ours, frames gum as a complement to brushing rather than a replacement. Any brand telling you its gum is "clinically proven" without linking a study of its own product is borrowing credibility it has not earned.
About this database
How much hydroxyapatite is in each gum brand?
Is more milligrams of hydroxyapatite better?
Is hydroxyapatite gum clinically proven?
Who maintains this page, and why should I trust it?
What changed in the Hydroxyapatite Gum Database
Every change is a timestamped commit anyone can audit.
Scoreboard: 2 of 15 hydroxyapatite gum brands publish their dose (Minvelle 5.7 mg nano, Crait 70 mg non-nano). Found an error? Tell us and we'll fix it in public: the commit will carry the correction.
New: every brand in this table now carries a letter grade on disclosure alone — the 2026 Disclosure Grades. Grades are mechanical and recompute the day a brand publishes.
Database updates by email.
When a brand changes its formula, claims, or pricing, we log it. Get the changes as they happen.
Want our full numbers?
Every Minvelle ingredient with its exact per-piece weight, the lab assessment, and what we still owe you, on one page.
See the transparency page