Bis-PEG/PPG-15/5 Dimethicone
AKA “Silicone Copolymer, Silicone Modifier
Synthetic
Ingredient Facts
Bis-peg/ppg-15/5 dimethicone
AKA: Silicone Copolymer, Silicone Modifier
Synthetic · Humectant · EWG: 4
Synthetic
Humectant
Emulsifier
Silicone
Synthetic
Clean
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 Science: Functions: Emulsion Stabilising, Humectant Safety Ratings: CIR: Safe as used
CAS #
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Form
Liquid
See origin →
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
Traditional Use
Developed as a contemporary cosmetic conditioning agent to provide improved sensory properties and product performance, combining polyethylene and polypropylene glycol with silicone technology.
Skin Types
all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR
Bis-PEG/PPG-15/5 Dimethicone — Duck Heart Ghost