disiloxane ●
TL;DR. This ingredient is a very light, volatile carrier, solvent, and slip agent used to spread pigments, UV filters, and conditioning materials, then evaporate with a dry finish.
What does disiloxane do in a cosmetic formula?
This ingredient is a very light, volatile carrier, solvent, and slip agent used to spread pigments, UV filters, and conditioning materials, then evaporate with a dry finish.
Is disiloxane clean?
Clean-beauty standards often flag it because it is a synthetic volatile silicone with persistence concerns and limited biodegradability, even though skin irritation potential is generally low. It appears on many silicone-restricted lists rather than being treated as a simple low-concern emollient.
Is disiloxane sustainable?
This material is made from mineral and petrochemical-derived inputs, with energy-intensive organosilicon processing. It is not readily biodegradable and can persist in the environment, which gives it a weaker sustainability profile than plant-derived esters or readily biodegradable emollients.
Is disiloxane COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic because synthetic silicones sit outside the standard’s allowed chemistry. From a Green Chemistry lens, the main weak points are nonrenewable feedstocks, poor biodegradability, and persistence despite efficient performance at low levels.
How does disiloxane work chemically?
The molecule is a low-molecular-weight organosilicon compound with an Si-O-Si backbone and methyl substitution, giving very low surface tension, high spreadability, and rapid volatility. It is broadly pH-insensitive in typical finished emulsions, useful in anhydrous systems, and co-formulated to improve sensory feel and dispersion of oils, powders, and film-formers.
Last updated 2026-05-13