Cyclomethicone

Functions
Emollient
Sensory Modifier
Hair conditioning
Solvent
CAS Number(s)
69430-24-6
556-67-2
541-02-6
540-97-6
EINECS number(s)
209-136-7
208-764-9
208-762-8
FDA UNII
NMQ347994Z

Cyclomethicone is a generic name for several cyclic substances derived from silica (sand is a silica). Silicones have special fluid properties that provide an excellent balance for slip and silky touch on the skin and impart emollience and are a water-binding agent that holds up well, even when skin becomes wet.

Cyclomethicone is a low-viscosity fluid with relatively high volatility. Non-polar and insoluble in water, it is completely miscible in lower alcohols and other typical solvents. In personal care applications, it is often used as a carrier that evaporates without residue while providing lubricity and detackification.

Cyclomethicone has a drier finish than Dimethicone. It is used in hair care applications like conditioners since it leaves no oily residue or build-up. It is also used in skin care applications such as lotions and creams, with a typical use level of 1-25%.

Cyclopentasiloxane is a volatile carrier compatible with a wide range of cosmetic ingredients and has low surface tension. It imparts a soft, velvety feel to the skin, has excellent spreading, leaves no oily residue or build-up, and is non-greasy.
Synonyms
Cyclomethicone