A silicone polymer used as a film former and hair-fixing ingredient.
What it is
Dimethicone/silsesquioxane copolymer is, according to CosIng, a siloxane polymer made from methyltrimethoxysilane and dimethylsiloxane, combining linear dimethicone segments with branched silsesquioxane units. CosIng lists it as a film-forming, hair-conditioning and hair-fixing ingredient.
Where it is used
Found in a small number of products, such as hair care 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 proportions of the units or the molecular weight.
Functions
- Film forming
- Producing (upon application) a continuous film on the skin, hair or nails.
- Hair conditioning
- Enhancing the appearance and feel of hair. Leaving the hair easy to comb, supple, soft and shiny and/or imparting volume, lightness, gloss, texture, etc.
- Hair fixing
- Permitting physical control of hair style.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.