Cosmetic ingredient dictionary
Trimethylsiloxysilicate in cosmetics: what it is and what it does
Trimethylsiloxysilicate is a cosmetic ingredient that softens and smooths the skin. Open Beauty Facts finds it in 221 products, most often nail polishes.
By Bravoora teamUpdated Sources checked 2 sourcesHow we check
What does Trimethylsiloxysilicate do in a product?
In a cosmetic product, Trimethylsiloxysilicate softens and smooths the skin, keeps the skin in good condition, and stops foam forming. The EU’s CosIng database lists these jobs for it: emollient, skin conditioning and antifoaming.
What other names and numbers does Trimethylsiloxysilicate have?
- CosIng reference
- 80398
Which products contain Trimethylsiloxysilicate?
Open Beauty Facts finds Trimethylsiloxysilicate in the ingredient lists of 221 of the 22,021 products it has a list for, most often nail polishes, breathable nail polishes and face makeup.
Products with it, by country of sale: Turkey 60 · Australia 45 · Germany 24 · Norway 21.
Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Trimethylsiloxysilicate turns up, not how much of the market it is.
Bravoora reads this ingredient for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dermatologists, dietitians and doctors
Sources
The job, the description and the EU annex entry are CosIng’s; the fragrance allergens are the EU Annex III names Bravoora’s label checker reads; the product counts are Open Beauty Facts’.
- European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
- Open Beauty Facts: product database, 77,506 products, read 13 October 2026, ODbL
Contains information from Open Beauty Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check
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