ENML vs. Boka
ENML and Boka are both fluoride-free hydroxyapatite brands, but they differ in two ways: particle size and format. ENML uses micro-hydroxyapatite in chewable tablets that are plastic-free, pre-measured, and TSA-friendly, while Boka uses nano-hydroxyapatite (n-Ha) in a paste sold in a recyclable tube. Pick ENML if you want a micro-hydroxyapatite, travel-ready, plastic-free tablet; pick Boka if you prefer a nano-hydroxyapatite paste texture.
| Feature | ENML | Boka |
|---|---|---|
| Format | Chewable toothpaste tablets (solid) | Paste in a recyclable tube |
| Fluoride-free | Yes | Yes (a fluoride version is also sold) |
| Hydroxyapatite type | Micro-hydroxyapatite | Nano-hydroxyapatite (n-Ha) |
| Flavor options | Mint, Whitening, Lavender, Limoncello, Cinnamon | Ela Mint, Lemon Lavender, Coco Ginger |
| Plastic-free packaging | Yes (refill pouches + tin) | Recyclable tube (not plastic-free) |
| Travel/TSA friendly | Yes (solid, not a liquid) | Tube counts as a gel/liquid |
| Kids line | Yes | Yes |
Bottom line
Choose ENML if you want a solid tablet rather than a paste — pre-measured doses, nothing to leak in a bag, no plastic tube, and a formula built on micro-hydroxyapatite rather than a nanomaterial. The five-flavor range also matters if mint is a problem for you (a common issue during pregnancy nausea, or with sensory sensitivities).
Choose Boka if you prefer the familiar feel of squeezing paste onto a brush and do not want to change your routine. Boka is also the easier switch if you are coming straight from a conventional tube, sells a fluoride version if you would rather keep fluoride, and is widely stocked in retail.
Where we're the weaker choice: Be honest about the trade: a tablet is a behaviour change. You chew it first, and the foam is lighter than paste — some people never take to it. Boka is also generally cheaper per tube up front than a jar of ENML tablets. And if your priority is specifically nano-hydroxyapatite, Boka has it and ENML deliberately does not.
ENML vs. Boka: common questions
What is the actual difference between ENML’s micro-hydroxyapatite and Boka’s nano-hydroxyapatite?
Particle size, and that is genuinely the main difference. Nano-hydroxyapatite particles are under 100 nanometres; the micro-hydroxyapatite ENML uses is larger and is not classified as a nanomaterial. Both are forms of the same mineral family that makes up tooth enamel, and both have been used in oral care for decades — micro since the 1970s, nano since the 1980s. The practical consequence is regulatory and preferential rather than a question of one being legitimate and the other not: micro carries no nanomaterial classification or labelling requirement, which is the reason some people seek it out.
Is Boka’s nano-hydroxyapatite unsafe?
No, and we would rather say so plainly than let the question hang. The EU’s Scientific Committee on Consumer Safety reviewed nano-hydroxyapatite and considered it safe for use in toothpaste at concentrations up to 29.5%. ENML uses micro-hydroxyapatite because some customers prefer to avoid nanomaterials as a matter of choice, not because there is evidence that nano-hydroxyapatite in toothpaste is harmful. Anyone telling you otherwise is selling something.
Which one is better for flying?
ENML, and this one is not close. TSA’s 3-1-1 rule applies to liquids, gels, and aerosols; toothpaste tablets are solids, so the rule does not apply to them at all and they do not need to go in your quart-sized bag. Boka’s paste comes in a tube and is treated as a gel — a standard tube exceeds the 3.4 oz / 100 ml limit, so you need a travel size and it has to fit in the bag with everything else.
Can I use both?
Yes. There is nothing about either product that conflicts with the other, and plenty of people keep tablets for travel and the gym while using a paste at home. If you are trying tablets for the first time, running them alongside your existing paste for a couple of weeks is a reasonable way to find out whether the format suits you before committing.
Sources
A note on the research referenced on this page
The studies referenced here examine hydroxyapatite as an ingredient and are provided as publicly available scientific literature for general information — they are not claims about ENML products. ENML products are cosmetics: they clean and polish teeth and freshen breath, and are not intended to diagnose, treat, cure, or prevent any disease or condition. For questions about your oral health, talk to your dentist.