INCI · other · CIR review pending · used in 10 products
Methyl Trimethicone
Methyl Trimethicone (INCI: Methyl Trimethicone; CAS #17928-28-8; IUPAC: 1,1,1,3,5,5,5-Heptamethyl-3-(Trimethylsilyloxy)Trisiloxane) is a very light, volatile silicone that evaporates from the skin rather than absorbing into it. It is similar to the widely used Cyclopentasiloxane but dries even faster upon application. Its official CosIng functions are listed as hair conditioning, skin conditioning, and solvent.
Evidence level
weakEWG score
—Comedogenic
—Category
other● Benefits
As a volatile silicone, it provides a lightweight, fast-drying skin and hair conditioning effect without leaving a heavy residue. It functions primarily as a solvent and carrier in formulations, contributing to a smooth, non-greasy skin feel.
hair-conditioningskin-conditioning
● Cautions
