The tooth powder was the beginning — what we learned from four ingredients

If you are a new customer, you probably came to us through the tooth powder. That is not an accident — it is the product of ours that has the shortest story to tell and the fastest to feel. Four ingredients. THB 390 per jar. Six weeks of use. By the end of the first week, most people cannot go back to toothpaste.

This essay is about what the tooth powder taught us, and how that lesson shows up in every product we have made since.

The original problem

I started making my own tooth powder in 2018. The precipitating event was learning that sodium lauryl sulfate — the foaming surfactant in almost every toothpaste on the shelf — is a documented trigger for recurrent mouth ulcers in a meaningful slice of the population. Once I saw the link, I could not ignore it.

The closest thing to an SLS-free toothpaste at the time was a handful of 'natural' brands whose formulations were longer, stranger, and often included glycerin in quantities that concerned me for the reason glycerin concerns anyone who has read Weston A. Price: it forms a film on enamel that may interfere with the saliva's native remineralisation chemistry.

So I started over. First principles. What actually needs to be in a tooth-cleaning product? Abrasion. Acid neutralisation. Antimicrobial action. That is it. Everything else — foam, flavour, paste-texture, marketing claim — is optional, and most of it is marketing architecture.

The four ingredients

Bentonite clay. Mineral-rich smectite, ion-exchange active, lightly abrasive at the particle size we specify. It adsorbs bacterial biofilm from the tooth surface. It delivers trace minerals to the enamel. It does not foam. It does not taste pleasant on its own. Those are features.

Sodium bicarbonate. Baking soda, cosmetic grade. Neutralises the oral acid that most food and drink leave behind. Mild supplementary abrasion. Safe at the particle size.

Ceylon cinnamon. Not cassia — specifically Ceylon cinnamon, which has a lower coumarin load and a cleaner antimicrobial profile. Active against Streptococcus mutans, the organism most responsible for cavities.

Peppermint essential oil (steam-distilled). Additional antimicrobial benefit, and the source of the clean finish that makes the powder taste like 'toothpaste' in the traditional sense.

That is it. No fluoride — a defensible but deliberately absent ingredient (see the 0% Standard page for the longer argument). No SLS. No glycerin. No sweetener. No synthetic flavour. No preservative, because the powder is dry and does not need one.

Why it has stayed our bestseller

The tooth powder works because it is designed around function, not around familiarity. The trade-off — no foam, an unusual texture, the requirement that you swish and swallow the mineral-rich water rather than spit — is small enough that most customers adapt within three uses. The benefit — noticeably cleaner-feeling teeth, less sensitivity over months, the compounding effect of better oral-microbiome conditions over years — is real enough that they stop using it at their own peril.

It has remained our bestseller for a reason that is, I think, instructive about the whole brand: if a product is simple enough to explain in one paragraph and good enough to produce a noticeable change in one week, word of mouth does most of the distribution for you.

If a product is simple enough to explain in one paragraph and good enough to produce a noticeable change in one week, word of mouth does most of the distribution for you.

What the discipline taught us

The discipline of four ingredients scaled up into everything we have built since. The magnesium deodorant is seven ingredients. The shave oils are eight to nine. Bio Gold, our most complex product, is nine. We are not short-listers by ideology; we are short-listers by outcome — at every product we have formulated, the shortest ingredient list that did the job was the list that performed best. Every additional ingredient we tried either added nothing, added a trade-off, or added a chemistry we could not defend.

This is a formulation philosophy, not a marketing theme. It also happens to be a marketing theme that works, because most of our customers have been reading ingredient lists for years and have noticed the same pattern from the other side of the counter.

What this means for you

If you have not yet tried the tooth powder, it is the product I would start with. Six weeks of daily use costs THB 390. PrimalBasics is currently available in Thailand only — we will announce international shipping when we have the regulatory paperwork in each market. In a month, you will know whether the brand's formulation discipline is the real thing or marketing. If it is not, we refund you. If it is, everything else we make is built on the same ground.

— Mike