Biorepair vs Boka vs Apagard vs RiseWell

These four names are the ones UK shoppers actually collide with: Biorepair on the high street, Boka and RiseWell on Healf, Apagard in the Amazon import results. They are not the same paste. The useful split is nano vs micro — and then where you can buy a tube without pretending the science is settled.

We do not crown a “best”. A chemist-shelf microRepair paste and a Japanese nHA import are different objects. Percentages below are brand or literature figures, not measurements we commissioned.

Biorepair — microRepair, not nano

Biorepair (Coswell, Italy) is the most “normal chemist” option. The brand’s named technology is microRepair®: zinc-substituted hydroxyapatite described as micro particles. Calling it nHA is a common internet mix-up. If you specifically want nano-hydroxyapatite, this is the wrong column.

It is also the tube you can often pick up without an import checkout — Boots, and Amazon UK as a backup. Brand pages talk in repair language we do not repeat as a medical claim.

Boka — US nano-HAp, UK stock that wobbles

Boka presents nano-hydroxyapatite (n-Ha) as the headline mineral. A percentage is not clearly published on the UK listing we last checked, so we do not invent one. Flavours (Ela Mint and others) are a large part of why it spreads on social media; that is marketing, not a particle-size advantage.

In the UK the usual path is Healf. Boka may be out of stock. That is a logistics fact, not a quality judgement.

Apagard — the Japanese nHA original, via Amazon

Sangi’s Apagard is the long-running Japanese nano-hydroxyapatite toothpaste. Premio is the name most UK shoppers search. Figures such as “about 10% nHA” appear in papers and secondary write-ups; treat them as reported figures, not a certificate we hold.

You are usually buying an Amazon UK import. Check the seller, the gram weight, and that the latin-script box is actually Apagard. We do not claim it is “better than fluoride” because Sangi invented the category.

RiseWell — read the label for nano vs not

RiseWell’s standard Mineral toothpaste lists hydroxyapatite. The PRO line adds nano-hydroxyapatite, as the brand states. If you are comparing “nHA vs Biorepair”, the PRO tube is the one in that conversation; the standard tube is a different, less nano-specific product.

Healf has been the UK shelf. Same caveat as Boka: wellness retailers shuffle SKUs.

How to read nano vs micro without the myth-making

• Nano is a size class with extra cosmetic paperwork (see the SCCS notes on the HAp vs fluoride page). It is not automatically “stronger”.
• Micro is what Biorepair and Truthpaste say they use. Different feel, different regulation, not a loophole.
• We have not measured these powders. “Brand states” is doing real work in every cell of that table.
• A smoother look after a brush is a cosmetic observation, not evidence that a gap has been filled.