SPF Scout · Ingredient
C24-28 Alkyldimethylsiloxy Trimethylsiloxysilicate
CAS 1402155-63-8
What this ingredient generally does
A silicone that forms a film and protects the skin's surface. It leaves a thin layer that helps the product stay put and shield the skin.
Reviewed before publication. This note describes function in a formulation, and nothing else.
Published U.S. formulations that list this ingredient
These are the U.S. 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.
Milani Make It Last Sunscreen Setting SPF 30
Labeler: COSMAX USA · SPF 30 as labeled · U.S. formulation
Naturium UV Reflect Antioxidant SPF 50
Labeler: e.l.f. Cosmetics · SPF 50 as labeled · U.S. formulation
Milani Make It Last Sunscreen Setting SPF 30
Labeler: New Milani Group · SPF 30 as labeled · U.S. 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.