Buyer's guide

A checklist · Not a #1 ranking

Best hydroxyapatite toothpaste.

Quick answer

Best hydroxyapatite toothpaste is a search, not a trophy Klyyr can award itself. The useful version of that search is a checklist: disclosed concentration, named particle sizes, a full ingredient list, SLS, dyes, fluoride, and whether any study tested that exact formula.

Klyyr One+ is a fluoride-free 10% nano + micro hydroxyapatite toothpaste with 16 listed ingredients, no SLS, and no artificial dyes. Use the table to see how those facts map to the questions people ask when they are about to buy.

  • 01

    Read the percentage

    If the hydroxyapatite amount is not on the label, you cannot compare dose. One+ discloses 10% combined nano + micro.

  • 02

    Read the sizes

    Nano and micro are size ranges of the same mineral. One+ names both.

  • 03

    Read the rest

    SLS, dyes, fluoride, and the full list change daily use as much as the mineral does.

Topic Buying checklist What to look for Klyyr One+ How One+ answers
HAp percentage disclosed? Prefer a numbered concentration 10% combined
Particle sizes named? Nano, micro, or both Nano + micro
Full ingredient list? Every ingredient, not a highlight reel 16 ingredients, fully listed
SLS? Many shoppers want none None
Artificial dyes? Many shoppers want none None
Fluoride? Know whether you are buying fluoride-free 0 ppm
Was this exact paste in a trial? Usually no; ask anyway Cited studies tested other HAp formulas, not One+
Kids guidance? Amounts and spitting, not slogans Rice-grain / pea-sized; spit; ask a dentist

Checklist items are shopping questions, not proof that One+ is the best hydroxyapatite toothpaste for every person. Cited studies tested other formulas.

What the cited studies actually measured

If a brand says clinically proven, ask: which paste, which endpoint, how long, how many people, versus what.

  1. 18-month adult clinical trial · different formula

    Caries endpoint

    In one 18-month adult study, a 10% HAp toothpaste was non-inferior to 1450 ppm fluoride for the primary caries endpoint. The study tested a different formula.

    Read the 18-month non-inferiority study

  2. Sensitivity study · small HAp arm · different formula

    Dentin sensitivity

    Hydroxyapatite toothpastes have been studied for dentin sensitivity and interaction with exposed tubules. One cited HAp arm included only ten participants and used a different formula.

    Read the sensitivity study

  3. In-vitro experiment · different commercial paste

    Surface stains

    An in-vitro experiment measured stain removal after 180 seconds for another commercial HAp toothpaste. That is laboratory data, not a Klyyr whitening result.

    Read the in-vitro stain study

How to choose

One+ may be the paste to try if

The checklist above is what you were already looking for: disclosed 10%, nano + micro, 16 ingredients, no SLS, no dyes, fluoride-free.

Another paste may be better if

You need a dentist-prescribed fluoride toothpaste, a kids dessert flavor, a potassium-nitrate sensitive drug product, or a specific third-party seal.

Best is personal

Cavity risk, age, flavor, and what your dentist already recommended all beat a generic #1 headline.

The Klyyr One+ formula

One+ is fluoride-free toothpaste with a clearly disclosed 10% nano + micro hydroxyapatite blend, 16 listed ingredients, peppermint + spearmint, no SLS, and no artificial dyes.

  • 01

    10% hydroxyapatite

    Combined nano + micro hydroxyapatite, disclosed on the label. Ten percent is not a universal efficacy threshold.

  • 02

    16 listed ingredients

    Water, Sorbitol, Glycerin, Potassium Sorbate, Hydroxyapatite (nano & micro), Xylitol, Sodium Cocoyl Glutamate, Cellulose Gum, Xanthan Gum, Zinc Citrate, Aloe Vera, Mentha Piperita (Peppermint) Oil, Mentha Viridis (Spearmint) Leaf Oil, Menthol, Sodium Benzoate, Stevia Rebaudiana Leaf/Stem Extract.

  • 03

    What is not in it

    0 ppm fluoride. No SLS. No artificial dyes. Sodium cocoyl glutamate is the surfactant.

  • 04

    120 g aluminum tube

    4.23 oz, approximately 90 brushings. Aluminum tube, HDPE cap. Recycle where accepted locally.

In short

The best hydroxyapatite toothpaste is the one whose label you can actually check—then confirm with your dentist.

01 Which hydroxyapatite toothpaste is best?

Klyyr does not award itself a trophy. Compare disclosed concentration, particle sizes, the full ingredient list, and whether any study tested that exact formula. Separately, Dr. Rossouw named Klyyr Best Overall in Exact-Net's 2026 10% nano-hydroxyapatite roundup, ahead of Genvyne, Davids, and Mouthology. That recap is on Best Overall.

02 What percentage of hydroxyapatite should I look for?

Many shoppers look for around 10% because that concentration appears in published research on other formulas. It is not a guarantee. See 10% hydroxyapatite toothpaste.

03 Should I only buy nano-hydroxyapatite?

Nano is one size range. Micro is another. One+ uses both. See nano vs micro hydroxyapatite toothpaste.

04 How does Klyyr compare with Boka, David's, or RiseWell?

Start with Klyyr vs Boka, Klyyr vs David's, and Klyyr vs RiseWell. Those pages compare public labels, not clinical trophies.

05 Is the best paste still fluoride?

Fluoride remains the most studied cavity-prevention toothpaste ingredient. Hydroxyapatite is a fluoride-free option with growing evidence on other formulas. Read hydroxyapatite vs fluoride.

Read the full FAQ →

Shop

Same formula. Different searches.

One+ is the only product in each collection. Pick the page that matches what you came for.

  1. 01 Hydroxyapatite toothpasteThe main One+ shop page.
  2. 02 10% hydroxyapatite toothpasteThe percentage is on the tube.
  3. 03 Nano hydroxyapatite toothpasteNano + micro at a combined 10%.
ONE+
Check the One+ label against the list, then decide.
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