Crait vs Underbrush: what each discloses.
Two hydroxyapatite gums, compared only on what each brand publicly discloses: dose, particle data, ingredients, lab documents and guarantee terms. Same rows as the public database this page is generated from.
| What each brand publishes | Crait | Underbrush |
|---|---|---|
| Hydroxyapatite per piece |
70 mg non-nano HAp (gum) separate mints state 25 mg; see note 1 before comparing
|
not disclosed |
| Particle form and size |
Non-nano (OMYADENT®) described as larger, surface-acting particles
|
Nano particle size not stated
|
| Full ingredient list |
Yes 9 ingredients, no amounts
|
Yes no amounts
|
| Lab reports public | No | No |
| Studies cited on site |
No "studies show" without citations
|
Yes 39 numbered citations
|
| Money-back guarantee | not disclosed | not disclosed |
| Verifiability scorecard | Crait | Underbrush |
|---|---|---|
| Dose disclosed |
Yes 70 mg gum / 25 mg mints
|
not disclosed |
| Documents downloadable | 0 | 0 |
| Guarantee in writing | not found (checked 2026-07-11) |
No gum is final sale; guarantee only via a paid add-on
|
| Reviews verifiable off-site |
Yes Amazon listings; exact count not machine-readable
|
No on-site widget only
|
Crait publishes its per-piece dose, offers 0, and lists its guarantee as not disclosed. Underbrush does not publish a per-piece dose, offers 0, and lists its guarantee as not disclosed. Every cell above is what each brand states publicly, nothing is scored on taste or opinion; where a cell says not disclosed, the claim could not be verified from the brand’s own materials.
This comparison is generated from the Hydroxyapatite Gum Database, maintained by Minvelle. We sell a gum in this category and appear in the same database under identical rules, which is exactly why every cell here is sourced instead of scored.