Bis-PEG-4 Dimethicone

AKA “Silicone Modifier, Modified Dimethicone”

Synthetic

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Ingredient Facts

Bis-peg-4 dimethicone

AKA: Silicone Modifier, Modified Dimethicone

Synthetic · Hair Conditioning | Skin Conditioning - Emollient · EWG: 4

Plant-Derived

Emollient

Skin Conditioner

Hair Care

Silicone

Synthetic

Not Clean

Silicones and siloxanes, dimethyl, hydropolyoxyethylene terminated (4 mol EO average molar ratio) Science: Functions: Hair Conditioning, Skin Conditioning, Skin Conditioning - Emollient Safety Ratings: CIR: Safe as used

Form

Liquid

Plant-Derived

Synthetic. Derived from dimethicone, a siloxane polymer, combined with polyethylene glycol chains. Synthesized through condensation reaction linking dimethicone backbone with polyoxyethylene terminating groups.

Function

Hair Conditioning | Skin Conditioning - Emollient

Benefits

Locks In Moisture

Traditional Use

Developed as a lightweight silicone conditioning agent in mid-to-late 20th century cosmetics, designed to improve product texture without leaving a heavy residue.

Skin Types

all-skin-types

Best For

Target

Dryness

Melanin-Rich Skin

Suitable

Pregnancy Safe

Yes

Restricted By

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

EWG Score4

CIR Safety Findings

medical-approval, all-shades-safe, Not a Sensitizer

Regulatory Status

USAunder review

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Feb 2026

Data: CosIng · EWG · CIR