Triethoxyoctylsilane
AKA “Triethoxy(octyl)silane, 2943-75-1, Octyltriethoxysilane, triethoxycaprylylsilane, Octyl(triethoxy)silane, Dynasylan OCTEO, Prosil 9202, Silquest A 137, Prosil 9234
Ingredient
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Ingredient Facts
Triethoxyoctylsilane
AKA: Triethoxy(octyl)silane, 2943-75-1, Octyltriethoxysilane, Triethoxycaprylylsilane, Octyl(triethoxy)silane, Dynasylan OCTEO, Prosil 9202, Silquest A 137, Prosil 9234
Ingredient · Emollient
Synthetic
Emollient
Skin Conditioner
Not Clean
The CIR Expert Panel concluded that the alkyl PEG ethers, listed below, are safe in the present practices of use and concentration described in this safety assessment when formulated to be nonirritating. This assessment is also intended to address future alkyl PEG ether cosmetic ingredients that vary from those ingredients recited herein only by the number of ethylene glycol repeat units...Oleth-30...
Mol. Weight
276.49
State
Dry Powder; Liquid; Dry Powder, Liquid
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
High Fidelity Foundation
Exa Beauty
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Custom Blush
Finding Ferdinand
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Tender Blush
Finding Ferdinand
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Clean Line Gel Liner
ILIA Beauty
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True Skin Serum Foundation
ILIA Beauty
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Brow Pop Nano
Kosas
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Speak Love Moisture Matte Lipstick
LYS Beauty
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Triple Fix Full Coverage Brightening Concealer with Hyaluronic Acid + Turmeric + Ashwagandha
LYS Beauty
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Concealer Brush Duo
Saie
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Glowy Super Skin Tint Foundation
Saie
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Slip Tint™ Radiant All-Over Concealer
Saie
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Slip Tint™ Undetectable Baked Setting Powder
Saie
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Super Skin Duo
Saie
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SuperSuede™ Baked Powder Blush
Saie
 →
SuperSuede™ Radiant Baked Bronzer
Saie
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The Blush Stack
Saie
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The Slip Tint™ Family
Saie
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The SuperSuede™ Stack
Saie
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Shield & Tame
Bloom Effects
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GetSet® Matte Powder Blush
Tower 28 Beauty
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GetSet® Pressed Powder
Tower 28 Beauty
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Toni Bravo GetSet® Matte Powder Blush
Tower 28 Beauty
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Tulip Dew Shield & Glow SPF Sunstick
Bloom Effects
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Baby Cheeks Blush Stick - Bichette
Westman Atelier
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Baby Cheeks Blush Stick - Chouchette
Westman Atelier
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Baby Cheeks Blush Stick - Coquette
Westman Atelier
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Face Trace Contour Stick - Ganache
Westman Atelier
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Face Trace Contour Stick - Truffle
Westman Atelier
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Verified Jun 2026
Data: PubChem · CosIng