Dimethyl polysiloxane (E900a)

Dimethyl polysiloxane (E900a) is one of the markers Open Food Facts uses to classify a food as ultra-processed (NOVA group 4).

What it is and why it counts

Emulsifiers are substances which make it possible to form or maintain a homogenous mixture of two or more immiscible phases such as oil and water in a foodstuff.

Cosmetic additives

NOVA calls these additives "cosmetic": they change how a product looks, feels or tastes rather than keeping it safe to eat. Their presence is one of the two defining signs of an ultra-processed food.

Function

Emulsifier
Emulsifiers are substances which make it possible to form or maintain a homogenous mixture of two or more immiscible phases such as oil and water in a foodstuff.

Functional class definitions from the EU food additives regulation, via Open Food Facts.

More about dimethyl polysiloxane (E900a) on Wikidata

Where it turns up

Dimethyl polysiloxane (E900a) appears in 12 of the 40,000 products on this site (0%).

Products containing dimethyl polysiloxane (E900a)

How the NOVA classification works