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Bis-PEG-20 Dimethicone
AKA “Silicone Modifier, Modified Dimethicone”
Skin Conditioning
Ingredient Facts
Bis-peg-20 dimethicone
AKA: Silicone Modifier, Modified Dimethicone
Skin Conditioning · Hair Conditioning · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Silicone
Not Clean
Definition: Bis-PEG-20 Dimethicone is the siloxane polymer that conforms generally to the formula:
CAS #
102783-01-7
Form
Liquid
See origin →
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
A silicone-based copolymer created for modern cosmetics to enhance product spreadability, water resistance, and conditioning properties in makeup and skincare formulations.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR