Titanium dioxide is a physical sun blocking agent that work primarily by reflecting/absorbing ultraviolet light. It bocks UVB and UVA light (320-340 nm).
- It is not irritating and more compatible with sensitive skin than chemical sunscreens.
- Because of its gentleness, titanium dioxide is an excellent sunscreen active for use on sensitive or rosacea-affected skin.
- It is also great for use around the eyes, as it is highly unlikely to cause stinging in this area.
- To increase protection and extend its range, titanium dioxide is usually combined with zinc oxide, another popular physical sun block.