Back to Ingredient Dictionary

THIOXANTHONE

Description

Thioxanthone is a versatile organic compound with significant applications in both skincare and haircare formulations. This sulfur-containing heterocyclic molecule belongs to the xanthone family and is known for its photosensitizing properties. In skincare, thioxanthone acts as a potent UV absorber, providing broad-spectrum protection against harmful UVA and UVB rays. Its ability to stabilize other UV filters makes it a valuable addition to sunscreen formulations, enhancing their overall efficacy and durability.

In haircare products, thioxanthone serves as a photoprotective agent, shielding hair fibers from UV-induced damage and color fading. It can be incorporated into leave-in treatments, styling products, and hair dyes to maintain hair integrity and preserve artificial hair color. Thioxanthone's low molecular weight allows for efficient penetration into the hair shaft, offering protection from within.

While thioxanthone demonstrates excellent photostability and compatibility with other cosmetic ingredients, formulators must carefully consider its concentration due to potential skin sensitization at higher levels. Proper encapsulation techniques can mitigate this risk while maintaining its beneficial properties in both skincare and haircare applications.

Products with this Ingredient