Isobutyl/Methoxy PEG-10 Polysilsesquioxane

AKA: Silicone Crosspolymer, Silica Crosspolymer

Synthetic

Not Clean

OriginSynthesized from silicone-based polysilsesquioxane compounds combined with polyethylene glycol (PEG) and isobutyl/methoxy functional groups. Produced through controlled condensation and polymer cross-linking reactions to create a branched silicone-polymer hybrid structure.

Isobutyl/Methoxy PEG-10 Polysilsesquioxane is the Methoxy PEG-10 derivative of Isobutyl Polysilsesquioxane.

Form

Powder

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Viscosity Controlling

Controls Viscosity

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory0 listings

🛡️Safety-assessed1 review →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

EWG

CIR

Safe as used

Pregnancy

Yes

Restricted By

Credo Beauty Whole Foods Premium Body Care Beauty Heroes MADE SAFE EWG VERIFIED

CIR Safety Findings

Skin Irritant in Testing

1 study / 1 irritating / reactions slight (CIR 743)

Concentration Guide

CIR lists it as not reported to be in use.

CIR · report published 2017

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR