A silicone with stearyl groups at both ends, used as an emollient and film former.
What it is
Bis-stearyl dimethicone is, according to CosIng, a dimethicone (polydimethylsiloxane) terminated at both ends with octadecyl (stearyl, C18) groups. CosIng lists it as an emollient, film-forming and skin-conditioning ingredient.
Where it is used
Appears on the ingredient lists of a small number of products.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
The INCI name does not show the length of the silicone chain.
Functions
- Skin conditioning – emollient
- Acting as lubricants on the skin surface providing the skin with a soft and smooth appearance.
- Film forming
- Producing (upon application) a continuous film on the skin, hair or nails.
- Skin conditioning
- Maintaining the skin in good condition.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.