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Every order includes the evidence — we email you the full research review for this product.
We make this paste because the trial evidence supports the ingredient. In the US it's sold as a cosmetic — cavity-prevention claims are reserved for fluoride products — so here is what the studies themselves found.
Over 18 months, adults using a 10% hydroxyapatite paste developed no new decayed surfaces at the same rate as adults using a 1450 ppm fluoride paste (89.3% vs 87.4%).
Pooled across eight randomized trials, hydroxyapatite reduced dentin sensitivity roughly 40% more than placebo.
The same review notes the limits: most trials share manufacturer funding, and fluoride's evidence base is far larger. Both facts are in the full review — we'd rather you read them before buying than after.
The handbook teaches the exact method our review team uses — so you can check our work, or anyone else's. No statistics background required.
The full working formula — nothing hides behind "flavor."
No fluoride, no SLS, no charcoal. If you're at higher risk for cavities, our fluoride paste carries the deepest evidence base — many households keep both.
Product sales fund the research — we have no sponsors. The review team works independently of the shop: if the evidence on one of our products is negative, that's what we publish.