Finely pulverised silk, used as a bulking and skin-conditioning ingredient.
What it is
Silk powder is, according to CosIng, finely pulverised silk, a protein fibre produced by silkworms; it is also known under the EU name serica powder. CosIng lists it as a bulking and skin-conditioning ingredient.
Where it is used
Appears on the ingredient lists of a small number of makeup and skin 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.
Silk powder is of animal origin.
Functions
- Bulking
- Non-reactive (chemically inert), solid ingredients that dilute other solids and/or increase the volume of cosmetic products.
- 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.

