Titanium Dioxide (CI 77891)

Definition: Titanium dioxide is a naturally occurring, opaque, white mineral. In the world of cosmetics, it is highly valued for its role as a pigment, sunscreen, and thickener.

Usage in Cosmetics: Titanium dioxide is a versatile ingredient found in a wide range of cosmetic products, providing opacity, color, and sun protection. As a physical sunscreen, it uses UV filters to block or deflect UV light—a unique characteristic that separates it from chemical sunscreens, which absorb UV light. This non-absorbent property makes titanium dioxide particularly beneficial for those with heat-sensitive or acne-prone skin, as it is typically less pore-clogging. However, due to its thicker consistency compared to chemical sunscreens, it can leave a white cast after application. You'll commonly find titanium dioxide in foundations, concealers, powders, blushes, bronzers, eyeshadows, eyeliners, mascaras, lipsticks, lip glosses, sunscreens, and self-tanners.

Other Names: You might see titanium dioxide listed as titanium white, Pigment White 6, or E171 on product labels.

Skin Sensitivity: Titanium dioxide is generally well-tolerated and safe for most people. However, individuals with sensitive skin or a history of allergies may experience skin sensitivity. If you have sensitive skin, we recommend conducting a patch test with any new product containing titanium dioxide before full application. It's worth noting that titanium dioxide-based physical sunscreens are typically less pore-clogging, making them suitable for those with acne-prone skin. They're also beneficial for those with heat-sensitive skin conditions like rosacea.

Other Risks: Titanium dioxide is considered safe in general, but there are some associated risks. Products that are inhalable, like sprays or powders, have a higher risk due to potential respiratory concerns. Non-reproductive organ system toxicity is considered moderate, and occupational hazards are high when dealing with raw titanium dioxide. There are ongoing investigations into whether titanium dioxide could potentially be a carcinogen, but more research is needed to substantiate this. 

Please remember that individual reactions to cosmetic ingredients can vary. Always listen to your skin and seek medical advice if you experience any adverse reactions.