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Guide · September 2026

SLS-free hydroxyapatite toothpaste in the UK: Gem, Truthpaste and Apagard Soft

8 min read

Gem Triple Whitening hydroxyapatite toothpaste tube, Truthpaste Hydroxyapatite Peppermint glass jar, and Apagard Soft carton and tube side by side on a pale stone surface

You’re in Boots, or on a product page, looking for a hydroxyapatite toothpaste that leaves out sodium lauryl sulfate. The front of the pack talks about the mineral. It does not always say whether the foaming agent is in there too.

You can check that on the ingredient list. It is not a reason to drop a fluoride paste a dentist has already chosen for you.

What does SLS-free mean on a UK toothpaste?

Sodium lauryl sulfate, often shortened to SLS, is a foaming agent. It is the ingredient that turns a pea of paste into a mouthful of bubbles. You will see it on many ordinary fluoride toothpastes. It is there for the feel.

Sulphate-free is the shorter line some brands print on the front. On these pastes it is pointing at that same foaming agent. A nickname is not the list. Turn the carton over and look for the words sodium lauryl sulfate.

NHS teeth-cleaning advice still centres a fluoride toothpaste at 1,350–1,500 ppm for adults. Brush twice a day, including last thing at night. Spit, and don’t rinse straight away. It does not say the paste has to foam, and it does not say the paste has to leave SLS out.

Leaving the foaming agent out is a choice. Some people find a strong foam harsh. It is not a medical upgrade, and it is not a reason to treat fluoride as a problem. How the mineral sits beside that NHS line is on hydroxyapatite vs fluoride toothpaste.

Does a hydroxyapatite toothpaste leave SLS out?

Hydroxyapatite is a calcium mineral. Some toothpastes add it as a powder. After brushing, teeth can look a little smoother. That is a cosmetic change you might notice in the mirror. It is not a treatment for decay, and it does not rebuild a tooth.

The mineral and the foaming agent are separate lines. A tube can list both. Apagard Premio and M-Plus do. If the second name on the box is Premio, you are not holding Apagard Soft. Those names are sorted on Apagard Premio vs Royal vs M-Plus.

A mineral on the front does not tell you how the brush will feel. Why a paste can seem almost dry is a different page: why hydroxyapatite toothpaste doesn’t foam.

Which three names should you actually check?

Gem is the one that has turned up at Boots. On the brand’s Triple Whitening Toothpaste page, the paste is marked sulphate-free. The ingredient list includes hydroxyapatite and sodium methyl cocoyl taurate, a different cleanser. It does not list sodium lauryl sulfate. The same page talks about a foaming brush, so this one can still bubble. Sulphate-free is not the same as foam-free.

It does not print nano or micro, so treat the particle size as unspecified. The page uses strong whitening and enamel language, which we do not repeat as a result. The list we read has no fluoride. If another Gem tube prints a fluoride strength, that is a different pack.

Truthpaste is the UK jar. The ingredient list on the peppermint hydroxyapatite page does not include sodium lauryl sulfate. Expect less of the supermarket foam. The taste includes peppermint and other oils, so a quiet brush does not mean a bland one. The page states 5% micro hydroxyapatite, and it does not list fluoride. That is a product choice, not an instruction to drop a family fluoride paste. The jar and the Italian tube are compared in Truthpaste vs Biorepair.

Apagard Soft is the Japanese tube people mix up with Premio. Sangi, the maker, describes Soft as a non-foaming gel, made without a foaming agent, in a soft mint, for people who find foaming agents or strong flavours harsh. The ingredient list on the maker’s page does not include sodium lauryl sulfate. If you wanted Soft, a Premio listing is the wrong box. Read the second name before you pay.

Biorepair is a separate carton. On its Total Protective Repair page, the brand says that paste does not contain sodium lauryl sulfate. Another variant can read differently, so confirm the one in the basket.

How do you read the carton in the shop?

Turn the pack over before it goes in the basket. You want two lines, not a score.

First, hydroxyapatite, written out. A brand nickname is not enough. Then sodium lauryl sulfate. If both are printed, this is not the pack you came in for. If the front says sulphate-free but you cannot see an ingredient list, wait until you can.

Then look for fluoride. A fluoride-free tube is a separate choice from the foaming agent. Do not give up a paste a dentist chose, at 1,350–1,500 ppm, just to avoid SLS.

A percentage, if one is printed, is the maker’s figure for the mineral. It is not a promise about foam, and it is not a promise about decay. What those figures mean is in how to read a hydroxyapatite toothpaste label.

Use a pea, not a stripe the length of the brush. Spit, and don’t rinse straight away. If the paste stings, tastes wrong, or feels too gritty, stop and try another of the three.

When should you see a dentist?

Choosing a paste without SLS does not explain a sore mouth, and it will not answer pain.

See a dentist for pain, a hole you can see, swelling, gums that keep bleeding, a mouth sore that does not settle, or sensitivity that stays. Tell them which paste you are using. Do not wait to see whether a different carton sorts that out.

This is general information, not personal dental advice.

Where to buy in the UK

Gem has been sold through Boots. Start with a Boots search for Gem toothpaste and read the ingredient list on the day. Shelves change.

Truthpaste’s peppermint jar is on the brand’s own site: Truthpaste hydroxyapatite, 100 ml.

We have not checked a UK product code for Apagard Soft, so there is no shop link. Premio lists sodium lauryl sulfate, so it is the wrong box if you wanted Soft. The names are on Apagard Premio vs Royal vs M-Plus.

Boots, Amazon UK, Healf, and Truthpaste sit together on where to buy hydroxyapatite toothpaste in the UK.

The wider map of names is on Biorepair vs Boka vs Apagard. More explainers are on the guides index. How the shopping links work is on our disclosure.

Mineral Mouth does not examine patients or sell toothpaste.

Questions we get

Is every hydroxyapatite toothpaste SLS-free?

No. Hydroxyapatite is the mineral. Sodium lauryl sulfate is a foaming agent on a different line. Apagard Premio and M-Plus list that foaming agent. If you want it left out, check Gem, Truthpaste’s peppermint jar, and Apagard Soft, then read the carton in your hand.

Does SLS-free mean the toothpaste will not foam?

Not always. Gem’s Triple Whitening page marks the paste sulphate-free and still describes a foaming brush. Apagard Soft is the one Sangi describes as a non-foaming gel without a foaming agent. A quiet brush is a texture, not a better paste, and not a reason to drop fluoride.

Should I switch off fluoride to avoid SLS?

No. NHS advice still centres fluoride toothpaste at 1,350–1,500 ppm for adults. Leaving out a foaming agent is a separate choice. If a dentist has already chosen a fluoride toothpaste for you, stay with that plan unless they change it. See a dentist for pain, a mouth sore that does not settle, or gums that keep bleeding.

Hub pages

The longer comparison and buying pages stay on their original URLs.