Polydimethylsiloxane
Fats & OilsCAS: 63148-62-9
This is what the ingredient is.
Polydimethylsiloxane (same as dimethylpolysiloxane/PDMS) is a silicon-based antifoam agent.
Here is why it shows up on the label.
Used to control foaming in cooking oils, wine, and various food processing applications.
Here is what food agencies say.
The FDA has approved it at up to 10 ppm. European food agencies allow it (E900). It is permitted in many countries worldwide.
Here is what research has found.
Inert and not absorbed. an FAO/WHO expert committee confirms safety. Used in medical applications including breast implants.
Here are a few things worth knowing.
Generally safe. Passes through body unchanged. No significant health concerns.
Sources
- FDA CFR 21
- EFSA Panel on Food Additives
- JECFA
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.
v1.0Updated 9/12/2026