METHYL TRIMETHICONE- ▸ Emollient: Lightweight, non-greasy emollient for skin care
- ▸ Spreading agent: Fast-spreading carrier improving sensory feel
- ▸ Hair care: Conditioning and shine agent for hair formulations
- ▸ Safety Data Sheet (SDS) PDF · SDS
- ▸ Technical Data Sheet (TDS) PDF · TDS
Values shown are typical for the current commercial grade. A lot-specific Certificate of Analysis accompanies every shipment; the grade-specific SDS is available on request.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Methyl trimethicone (CAS 17928-28-8) is a low-viscosity, volatile silicone fluid. It is used in personal-care formulations as a light, non-greasy emollient, spreading agent, and skin- and hair-conditioning carrier.
Regulatory restriction status
Methyl Trimethicone (CAS 17928-28-8) appears on the regulatory list(s) below. This is public regulatory information about the substance — not a statement about any specific supplier’s material, and not a safety claim. Confirm the current status for your jurisdiction and intended use.
- REACH SVHC Candidate List (EU): listed 25 Jun 2025 on the basis of vPvB (Art. 57(e)). SVHC status triggers EU supplier-communication and notification duties above 0.1% w/w; it is not, by itself, a ban on sale.
Sources: ECHA Candidate List / Annex XIV / Annex XVII (echa.europa.eu); U.S. EPA TSCA; UN Stockholm Convention / EU POPs Regulation; California OEHHA Proposition 65 list. Retrieved 2026-07-13.
Frequently Asked Questions
What is methyl trimethicone?
Methyl trimethicone (CAS 17928-28-8) is a low-viscosity, volatile silicone fluid used in personal-care formulations as a lightweight, non-greasy emollient, a fast-spreading carrier, and a skin- and hair-conditioning agent. RawSource supplies it in bulk to cosmetic and personal-care formulators.
What is methyl trimethicone used for?
It is used as a volatile emollient and spreading agent that improves sensory feel, and as a conditioning and shine agent in hair-care products. Because it is volatile, it evaporates after application rather than leaving a heavy residue.
What is the difference between methyl trimethicone and dimethicone?
Methyl trimethicone is a low-molecular-weight, volatile silicone that flashes off after spreading, while dimethicone is a non-volatile silicone polymer that remains as a film. Formulators choose methyl trimethicone for a light, fast-spreading carrier and dimethicone for lasting slip and barrier feel.
What CAS number and family does methyl trimethicone fall under?
CAS 17928-28-8, family Silicone Fluids & Oils, formula C10H30O3Si4. It is also known by the chemical name methyltris(trimethylsiloxy)silane.
How is methyl trimethicone shipped?
It is associated with UN 1993 (flammable liquid, n.o.s. – methyltris(trimethylsiloxy)silane) for transport; confirm the applicable shipping classification on the SDS. RawSource supplies it in bulk with a CoA and SDS per shipment; request a bulk quote with your target volume.