Best solution of O/W sunscreen using inorganic UV filter - Tayca's next-generation micro titanium dioxide.

May 15, 2025 (Thu.) 14:45-15:15

【Profile】

Joined TAYCA Corporation in 2008.
In charge of research and development of raw materials for cosmetics since 2018.

【Abstract】

In recent years, the demand for mineral sunscreens has been increasing due to their safety and minimal impact on the marine environment. Titanium dioxide is widely used in many sunscreen formulations due to its excellent UVB protection. Although O/W gels are particularly popular in Japan, titanium dioxide is not commonly used in these formulations. This is because titanium dioxide used as a UV filter, is a micro particle that tends to aggregate easily. When particles aggregate, they become more easily exposed from the emulsion particles, and the emulsion particles coalesce from the exposed areas, resulting in a deterioration of stability over time. Therefore, incorporating titanium dioxide into O/W gel formulations is technically challenging. Here, we will report on the development of a new micro titanium dioxide with dramatically improved oil wettability through process improvements.