Standing in the toothpaste aisle with a toddler on your hip, it's hard to know what you're actually looking at. Hydroxyapatite toothpaste for kids is now easy to find in Australia, but the labels, prices and claims vary a lot. I'm Jess, an Oral Health Therapist, and this guide walks you through what to check before you buy, how much to use at each age, and how to make one tube work for the whole house.
What is hydroxyapatite toothpaste?
Hydroxyapatite is a mineral that occurs naturally in teeth and bones. In toothpaste it's used as a gentle polishing ingredient that leaves teeth feeling smooth and clean. Many brands, including ours, use it in place of fluoride, which is why you'll often see these pastes sold as "fluoride-free".
You'll see two main types on labels: nano-hydroxyapatite (very small particles) and micro or "non-nano" hydroxyapatite (larger particles). If you'd like the detail, I've explained the difference in Nano vs Non-Nano Hydroxyapatite: Does Particle Size Matter?
How to choose a hydroxyapatite toothpaste for kids
When parents ask me which tube to pick up, these are the six things I tell them to check.
1. Is the percentage on the label?
A label that says "with hydroxyapatite" but gives no percentage doesn't tell you much. Look for a brand that prints the amount clearly so you know what's in the tube. Ours: we use 3% nano-hydroxyapatite.
2. A flavour your child will actually use
The best toothpaste is the one that gets used twice a day. Strong mint can feel "spicy" to little ones, while very sweet flavours can make some kids want to eat it. A mild mint is a good middle ground: fresh enough for adults, gentle enough for kids.
3. A short, readable ingredient list
Turn the tube over and read the back. You want to recognise what's there and understand why it's in the formula. We list every ingredient on our product page, and our FAQs answer the ingredient questions parents ask most.
4. Low foam is fine
Many kids' hydroxyapatite toothpastes are SLS-free, so they foam far less than supermarket pastes. That surprises a lot of parents, but foam isn't what cleans teeth. Brushing technique and time do the work. Lower foam also makes it easier for small children who are still learning to spit.
5. Who made it, and are they upfront?
Look for a brand that tells you who formulated the paste and where it's sold. Be wary of any toothpaste that promises medical results on the box. Toothpaste is a cosmetic product in Australia, and the honest brands describe it that way.
6. Price per tube, not price per pack
Imported hydroxyapatite pastes often sell for $24 to $40 a tube in Australia. Work out the price per 100g so you're comparing like with like, and think about how many tubes your household goes through in a month. One tube lasts one person roughly 4 to 6 weeks.
How much toothpaste should kids use?
Getting the amount right matters more than most parents realise. As a general guide:
- Under 3: a smear, about the size of a grain of rice, on a soft baby toothbrush.
- 3 years and up: a pea-sized amount.
- Every age: supervise brushing until your child can brush well and spit out the excess on their own, which for most kids is around 7 or 8.
Brush twice a day for two minutes, and encourage "spit, don't rinse" once they're old enough. If you're unsure what suits your child's age, or your dentist has recommended a particular toothpaste for them, follow your dental professional's advice. They know your child's mouth.
Making the switch at home
Most kids switch without any fuss, but a few simple steps help:
- Let them hold the tube. Kids are far more willing to try something they've chosen.
- Brush together. Children copy what they see, so make it a family routine rather than a job.
- Explain the foam. Tell them in advance that it won't bubble much, so they don't think something's wrong.
- Give it a week. A new taste and feel can take a few days to get used to.
Need more ideas for reluctant brushers? Use a two-minute song, a sticker chart or a sand timer. Small, consistent wins beat big battles at bedtime.
One tube for the whole family
In the clinic, I see families juggle a kids' paste, a teen paste and an adult paste in the one bathroom. That's why I made Flossy & Pure: one gentle, fluoride-free formula that everyone in the house can share, from baby's first tooth to grandparents.
Here's what's in every 100g tube:
- 3% nano-hydroxyapatite for a smooth, clean feel
- Hydrated silica, which gently polishes
- Prebiotics
- No SLS and no essential oils
- A mild mint flavour that kids and adults both enjoy
Families tell us it's made brushing simpler. As Maddison S. put it in her Google review: "My family's favourite toothpaste!! My daughter tries to keep it in her room with her 🤣"
You can try a single tube of Mild Mint ($21.99) first. If everyone's on board, the Family 3-Pack brings it down to $19.67 a tube, enough for every bathroom. You can also choose Subscribe & Save for 15% off, delivered every 4, 8, 12 or 16 weeks, and skip or cancel anytime. Browse everything in our shop.
Choosing one tube for the whole family? See how the hydroxyapatite toothpastes in Australia compare.
Change your mind? Return it unopened within 30 days for a refund. Email us at admin@flossyandpure.com.au first and we'll send you return instructions. Full terms.
Frequently asked questions
At what age can kids use hydroxyapatite toothpaste?
Flossy & Pure is suitable from baby's first tooth. Use a smear for under-3s and a pea-sized amount from age 3, and supervise brushing. If your dentist has given your child specific toothpaste advice, follow that.
Is hydroxyapatite toothpaste the same as fluoride-free toothpaste?
Not always. "Fluoride-free" only tells you what isn't in the tube. A hydroxyapatite toothpaste uses hydroxyapatite as a key ingredient, and many of them, including ours, contain no fluoride. Check the label for both.
Can adults and kids share the same tube?
Yes. That's how Flossy & Pure is designed. Everyone uses the same paste and just adjusts the amount for their age.
Why doesn't it foam like regular toothpaste?
Foam usually comes from SLS, a foaming agent. Our paste is SLS-free, so it foams less. It still cleans as you brush, because brushing is what does the work.
How long does a tube last a family?
One 100g tube lasts one person about 4 to 6 weeks when they use the right amount. So a Family 3-Pack gives three people their own tube for roughly 4 to 6 weeks, and littler brushers use less.
Where can I buy hydroxyapatite toothpaste for kids in Australia?
You can buy Flossy & Pure online, delivered Australia-wide, with free shipping on orders of $80 or more. We're an Australian-owned family business, and every tube is formulated by a practising Oral Health Therapist.
This article is general information only and isn't a substitute for advice from your dentist or Oral Health Therapist.