Titanium Dioxide Particle vs. Sun Protection Performance

Skin protection against ultraviolet (UV) radiation has become a necessity as the connection between serious skin conditions and a changed lifestyle has become more obvious in recent years.1 This has led formulators to use UV filters not only in sunscreens, but also in face care products. Modern sunscreen formulations with high sun protection factors (SPFs) often rely on a mixture of organic and inorganic UV filters. For UVB protection, titanium dioxide (TiO2)-based materials are an addition or alternative to organic UV filters as they efficiently help to prevent sunburn without the inherent drawbacks of organic UV filters, such as light degradation and in some cases, an unfavorable toxicological profile.2 Further, the German Federal Institute for Risk Assessment (BfR) has come to the conclusion that TiO2 UV filters do not penetrate the dermis and pose no risk for the consumer.3

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