At a glance
- CAS number
- 13463-67-7
- INCI name
- Titanium Dioxide
- Function
- uv_filter, colorant, opacifier
- Typical use level
- 0.5%–25%
- Solubility
- null
- Stable pH
- 3–10
CAS number and synonyms are sourced from PubChem. Function, usage levels, pH and compatibility are AI-assisted formulation guidance — verify against your supplier's technical data sheet and applicable regulations before use.
Also known as
Titania Titanium(IV) oxide Titanium White Titafrance Titandioxid Flamenco Hombitan Tiofine Tioxide Tipaque Titanox Rayox
Compatibility
Works well with:
Zinc Oxide Dimethicone Cyclopentasiloxane Iron Oxides Mica Niacinamide Glycerin Cetyl Alcohol Beeswax Caprylic/Capric Triglyceride
Use caution with:
L-Ascorbic Acid Retinol
Titanium Dioxide can catalyze photodegradation of UV-sensitive actives such as L-Ascorbic Acid and Retinol upon light exposure, reducing their efficacy; surface coating (e.g., with silica or alumina) can mitigate this. It is generally inert and physically stable across a wide range of formulation types. Dispersion in oil or water phases requires proper milling or pre-dispersed forms to avoid agglomeration.
Formulation notes
EU Cosmetics Regulation limits TiO2 as UV filter to 25% in face products; as of 2022 the EU banned TiO2 as a food additive but it remains permitted in cosmetics with certain nano restrictions. Nano-grade TiO2 must be labeled 'nano' on EU packaging. Non-nano grades provide greater opacity/whitening; nano grades offer improved UV protection with reduced whitening. Surface coatings (alumina, silica, stearic acid) are common to improve dispersibility and reduce photocatalytic activity.
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