Read the ingredient list. Look for "titanium dioxide," "TiO₂," "CI 77891" (the cosmetic colour index code), or "E171" (the food additive code). Under Australian and EU labelling rules, it must be declared.

Chemically, yes — it's the same compound (TiO₂). The cosmetic-grade version is processed and graded for topical use, but the molecule and its photocatalytic properties are identical to the food-grade form that the EU has banned for ingestion.

"May contain" (or +/-) is used for shade-specific colourants that vary across a product range. It allows brands to list every possible pigment used across all shades without specifying which is in which shade — which makes it harder to know if your specific product contains titanium dioxide.

No. Both are mineral UV filters used in sunscreen, but they're chemically and toxicologically distinct. Zinc oxide has a stronger safety record and additional skin benefits, which is why most clean beauty brands prefer it.

On healthy, intact skin, the bulk of evidence suggests titanium dioxide stays in the outer layer (stratum corneum) rather than reaching deeper, living cells. The picture changes for compromised skin — eczema, dermatitis, post-procedure or micro-abraded skin behaves differently, and facial skin absorbs ingredients 5–10 times more readily than other parts of the body.

Many mainstream toothpastes and white-coated supplements contain titanium dioxide for cosmetic whiteness — purely visual, no functional benefit. If you'd prefer to avoid it, look for products explicitly labelled as titanium dioxide-free.