- Zinc oxide is an excellent sunscreen because it has a broad spectrum of UV protection and is not absorbed into the blood. It sits on the top of the skin and effectively provides a layer of armour against damaging UV rays. Titanium dioxide is a physical sunscreen protecting against UVB and short UVA rays. Bemotrizinol protects against the entire UVA spectrum. It also provides some UVB protection. Furthermore, under sunlight, it does not degrade and is not significantly absorbed into the skin. Always apply UV Doux Silicone SPF 50 PA+++ Sunscreen Gel as advised by your physician. Avoid contact with eyes. Wear protective clothing, use extra caution near water, snow and sand, get vitamin D safely through a healthy diet and avoid tanning beds.