The Hydroxyapatite Gum Database: every brand's numbers (2026)
Every brand's numbers, disclosed or not.
Eight brands sell hydroxyapatite chewing gum in the US. 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 piece. Enamio, Underbrush, Dentagum, VanMan, Weldental and CaviChew do not publish an amount.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
What each brand publishes
| 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 |
Nano particle size in nm: pending from supplier |
Yes all 14, with per-piece weights |
Partial lab + report no. named, full document being added |
Partial pH study sourced; history claims being back-referenced |
30 days | transparency page |
| Crait | 70 mg non-nano HAp 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 |
| 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 |
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. "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 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?
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