Frequently asked questions
Is titanium dioxide comedogenic?
Titanium dioxide scored 0 out of 5 for comedogenicity in Fulton's 1989 rabbit-ear study, where 0 means no clogging and 5 means severe. That is a low rating. The test used the raw ingredient, so a finished product may behave differently.
What does titanium dioxide do in skincare?
In short: mineral sunscreen filter and white pigment. In formulas it is used for opacifying, UV absorber and UV filter.
What else is titanium dioxide called on ingredient labels?
On ingredient lists, titanium dioxide can also appear as Ci 77891, Titanium white, TIO2 or Nano titanium dioxide.
Sources
- Fulton JE Jr. "Comedogenicity and irritancy of commonly used ingredients in skin care products." Journal of the Society of Cosmetic Chemists. 1989;40(6):321-333. Table I (rabbit ear assay, 0 to 5).
- European Commission CosIng, Ingredients and Fragrance Inventory (function field). CSV mirror dated 2016-02-15 via the Open Beauty Facts repository.