Silica dimethyl silylate

Silica dimethyl silylate molecular structure
molecular structure · PubChem
AKA: Dimethyl silylated silica
Synthetic
Emollient
Emulsifier
Skin Conditioner
Clean
OriginDerived from silica (silicon dioxide), a naturally occurring mineral compound found in sand and quartz deposits. Synthesized by chemically bonding dimethyl silyl groups to silica through organosilane coupling reactions.
Silane, dichlorodimethyl-, reaction products with silica
CAS #
68611-44-9
Form
Powder
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Anticaking
Antifoaming
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Viscosity Controlling
Locks In Moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 584)
Mixed Skin Irritation Results
6 studies / 1 irritating / 5 not irritating / reactions mild (CIR 584)
Mixed Eye Irritation Results
7 studies / 3 irritating / 1 mixed / 3 not irritating / reactions slight to mild (CIR 584)
Concentration Guide
Leave-on0.00003–10%
Rinse-off0.0003–4%
0%50%100%
CIR reported use · 2010 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR