Fluoride-free toothpaste has moved from a niche shelf to the middle of the supermarket aisle. That’s good news for anyone who’s made a considered choice to reduce their fluoride exposure - but it also means the label alone tells you less than it used to. “Fluoride-free” describes what’s missing, not what’s good. Two fluoride-free toothpastes can be formulated in almost opposite ways.
If you’re choosing one for the first time, or switching from a conventional toothpaste, here is what’s actually worth checking.
Start with what replaced the fluoride
Removing fluoride doesn’t remove the need for something to support remineralisation - the process by which enamel repairs early, microscopic damage before it becomes a cavity. Fluoride does this by helping enamel form more acid-resistant crystals. Without it, a toothpaste needs a genuine alternative, not just an absence.
Hydroxyapatite is the most well-evidenced of these alternatives. It is the mineral that enamel is actually made from, and a growing body of clinical research - including comparative trials against fluoride toothpaste - indicates it performs comparably for enamel protection. It is also the dominant remineralising ingredient in Japanese dental care, where fluoride-free formulations have been standard for decades. If a fluoride-free toothpaste doesn’t contain hydroxyapatite or a similarly evidenced alternative, it is worth asking what, if anything, is doing that job.
Check what’s foaming it
Sodium lauryl sulfate (SLS) is the foaming agent in most conventional toothpaste - and in plenty of fluoride-free ones too. Removing fluoride doesn’t automatically mean removing SLS. Multiple published clinical studies have found an association between SLS-containing toothpaste and increased frequency of mouth ulcers and gum irritation in susceptible individuals. For most people this isn’t an issue. For anyone with recurring ulcers or sensitivity, an SLS-free formula is increasingly recommended by dental professionals.
Look at how it whitens
Whitening toothpaste usually gets its brightness one of two ways: a synthetic pigment such as titanium dioxide, or a natural abrasive or enzyme, such as kaolin clay or bromelain (derived from pineapple). Titanium dioxide’s use in toothpaste remains permitted under current EU regulation, but it is worth knowing it was removed from EU-approved food products in 2022 following an EFSA safety review, and it carries an IARC Group 2B classification based on inhalation studies - the same category as, for example, coffee extract. That is the lowest tier of concern, not a red flag on its own, but it is exactly the kind of thing worth being aware you’re using twice a day.
Check the sweetener
Most toothpaste needs a sweetener to be usable, and the choice matters more than it seems. Xylitol, in particular, does double duty - published research has consistently found it selectively inhibits Streptococcus mutans, the primary cavity-causing bacterium, without the broad antimicrobial disruption of harsher ingredients. A synthetic sweetener does the job of making toothpaste palatable and nothing else.
Read the fragrance line
“Aroma” on an ingredients list usually means a synthetic fragrance blend, which can include compounds like limonene - an EU-listed fragrance allergen that must be declared on cosmetic labels. That is a required declaration, not a banned substance, but one some people are sensitive to. Essential oils do the same job with a shorter, more legible ingredients list.
Where this leaves you
None of this means every conventional toothpaste is poorly made, or that everyone needs to switch. Millions of people use standard, fluoride-based toothpaste safely every day. What it does mean is that “fluoride-free” is the beginning of a decision, not the end of one - the formulation underneath it is what actually determines whether you’ve traded up or just traded out.
We built Laro’s Naturally Whitening Toothpaste around hydroxyapatite, with no SLS, no synthetic pigment, and xylitol and essential oils in place of synthetic sweetener and fragrance. It was also recently listed as Best Fluoride-Free Toothpaste Brand (UK) in Global Health & Pharma’s 2026 Global Excellence Awards.
If you’re evaluating your options, that’s the checklist we’d use.
→ Explore Laro’s Naturally Whitening Toothpaste.
→ Read: Our Word of Mouth Blog for more about the world of oral care.