Bis-PEG/PPG-15/5 Dimethicone

Bis-PEG/PPG-15/5 Dimethicone molecular structure
molecular structure · PubChem
AKA: Silicone Copolymer, Silicone Modifier
Synthetic
Humectant
Emulsifier
Silicone
Not Clean
OriginDerived from dimethicone, a siloxane polymer, combined with polyethylene glycol and polypropylene glycol units. Synthesized through sequential addition of ethylene oxide and propylene oxide monomers to dimethicone backbone.
Bis-PEG/PPG-15/5 Dimethicone is Dimethicone end-blocked with the random addition of an average of 15 moles of ethylene oxide and 5 moles of propylene oxide
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Locks In Moisture
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