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Fluoride

Depends on doseReviewed September 18, 2026

Sodium Fluoride · Stannous Fluoride · Monofluorophosphate

The active in most toothpaste, and the most studied cavity-prevention agent there is.

What it does

Actives & treatment

Our take

We're going to break from the wellness consensus here. The cavity-prevention evidence for topical fluoride is strong and the ADA position is well supported. The real risk, dental fluorosis, comes from swallowing it during tooth development, which is a supervision question for small children rather than an argument against the ingredient. We stock hydroxyapatite toothpaste because it's a genuinely good alternative with real remineralisation data, not because fluoride is dangerous.

What we look for

Standard OTC levels, spat out

Suitable from

Tween, 8+ · Teen, 13+ · Young adult, 20+ · Middle aged, 40+