en.Wedoany.com Reported - BASF's sunscreen active ingredient bemotrizinol (brand name Tinosorb S) has received approval from the U.S. Food and Drug Administration (FDA), becoming the first new ultraviolet filter approved by the agency in 27 years.

The ingredient, chemically known as bis-ethylhexyloxyphenol methoxyphenyl triazine, is a highly effective broad-spectrum UVB and UVA filter with absorption peaks at approximately 310 nm and 340 nm, and is recognized for its photostability. In addition to its primary ultraviolet attenuation function, Tinosorb S can serve as a photostabilizer to improve the performance of less photostable filters such as avobenzone, helping formulations maintain long-lasting UVA protection. When combined with avobenzone or zinc oxide, it can support critical wavelengths exceeding 370 nm.

Tinosorb S features a large molecular structure with low percutaneous absorption, reducing the risk of irritation, making it suitable for high-performance sunscreens and products for sensitive skin. This approval provides U.S. formulators with more options for seeking durable broad-spectrum protection.

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