What Titanium Dioxide does
It scatters and absorbs UV, with peak protection in the UVB and short-UVA range.
It is usually paired with zinc oxide or organic filters to close the long-UVA gap and reach a credible broad-spectrum rating.
Worth using if…
- Sensitive skin
- Children's and post-procedure sunscreen
- Tinted mineral formulas
Safety & watch-outs
- White cast, again — more chalky than zinc in many bases.
- Alone it is not a strong UVA filter; check the PA rating or UVA circle.
Titanium Dioxide in pregnancy: Not on standard avoid lists
Mineral filters are the ones most often recommended during pregnancy.
Fungal acne (): does not feed it
Mineral UV filter. The fungal-acne yeast feeds on fatty acids roughly C11–C24 and the esters built from them, so what matters in a finished formula is the whole list, not one ingredient.
Check a whole formula for malassezia triggers →Comedogenic rating: No published rating
No consistent Fulton rating; depends heavily on the base. Ratings come from the published Fulton scale, which was measured on rabbit ears rather than human faces — treat it as a rough signal, not a verdict on a finished formula.
Check a whole formula for pore cloggers →Common questions
Is titanium dioxide safe to inhale?
Powder and aerosol formats are the concern, not creams. Avoid loose-powder SPF sprays around the face.
Informational only, not medical advice. Written from public regulatory and dermatology references (EU Cosmetics Regulation annexes, SCCS opinions, CIR reviews, published Fulton-scale data). Concentration, formula and your own skin all change the outcome — consult a clinician for personal concerns.
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