Promois International LT.

Mexoryl XL, also known by its chemical name Drometrizole Trisiloxane, is a chemical compound used in sunscreens and other cosmetic products to protect against UV radiation. It acts as a broad-spectrum UV absorber, specifically absorbing both UVB and UVA rays. This ingredient is known for its photostability, meaning it doesn't break down easily in sunlight, providing effective and long-lasting protection.