Drometrizole Trisiloxane

Drometrizole trisiloxane (Mexoryl XL) is a siloxane-structured UV absorber spanning UVB and UVA-II with strong photostability and water resistance. The siloxane tails give it a silky feel and help the protective film persist through sweat and swimming. Approved up to 15% in the EU, it has been used in hundreds of millions of sunscreen units with a strong safety record. As with all filters, its role is ensemble: combined with deep-UVA partners it yields the balanced spectrum that modern dermatology considers the baseline for meaningful daily photoprotection and anti-pigmentation care.