SPF Scout · Ingredient
Drometrizole Trisiloxane
CAS 155633-54-8
What this ingredient generally does
An organic UV filter that absorbs ultraviolet light. It also acts as a light stabilizer, helping the formula hold up against light exposure. You may see it labeled as Mexoryl XL.
Reviewed before publication. This note describes function in a formulation — nothing else.
Published formulations that list this ingredient
These are the formulations currently published in the SPF Scout catalog whose stored ingredient declaration includes this ingredient. It is not a list of every product on the market, and the order carries no meaning.
La Roche-Posay Anthelios XL 50+ ultra-léger
EU formulation
Loreal Paris Loreal Paris Bright Reveal SPF 50+ Koyu Leke Karşıtı Fluid Günlük Yüz Güneş Kremi 50 ml
SPF 50+ as labeled · EU formulation
Checking this against your own list
You can select this ingredient in the SPF Scout app as one to flag. The app compares your selections against a product's stored declaration on your device; your list never reaches this website.
This comparison does not predict whether your skin will react.
Where this information comes from
Ingredient names, CAS numbers and recorded functions come from SPF Scout’s curated ingredient dictionary, grounded in CosIng, the European Commission’s Cosmetic Ingredient Database. Content © European Union, reused with acknowledgement.