Bis-Isobutyl PEG-13/Dimethicone Copolymer

Bis-Isobutyl PEG-13/Dimethicone Copolymer molecular structure
molecular structure · PubChem
AKA: Silicone Copolymer, Silicone Blend
Synthetic
Silicone
Not Clean
OriginSynthesized from dimethicone (polydimethylsiloxane) and polyethylene glycol (PEG) polymers as starting materials. Produced through copolymerization reactions that chemically link silicone and PEG chains together.
Bis-Isobutyl PEG-13/Dimethicone Copolymer is a block copolymer made by reacting Bis-Hydrogen Dimethicone with the bis-methallyl ether of PEG-13.
CAS #
197980-52-2
Form
Liquid
State
Solid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Not Reported
Creates smooth skin texture
Helps improve product spreadability
Provides soft
silky feel
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2014
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR