Cosmetic ingredient dictionary
Trimethyl Pentaphenyl Trisiloxane in cosmetics: what it is and what it does
Trimethyl Pentaphenyl Trisiloxane is a cosmetic ingredient that softens and smooths the skin. Open Beauty Facts finds it in 5 products.
By Bravoora teamUpdated Sources checked 2 sourcesHow we check
What does Trimethyl Pentaphenyl Trisiloxane do in a product?
In a cosmetic product, Trimethyl Pentaphenyl Trisiloxane softens and smooths the skin, and keeps the skin in good condition. The EU’s CosIng database lists these jobs for it: emollient and skin conditioning.
What other names and numbers does Trimethyl Pentaphenyl Trisiloxane have?
- CAS number
- 3390-61-2, 28855-11-0
- EC number
- 222-222-9
- CosIng reference
- 80389
Which products contain Trimethyl Pentaphenyl Trisiloxane?
Open Beauty Facts finds Trimethyl Pentaphenyl Trisiloxane in the ingredient lists of 5 of the 22,021 products it has a list for.
Products with it, by country of sale: Norway 4 · Australia 1 · Germany 1.
Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Trimethyl Pentaphenyl Trisiloxane 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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