PPG-4 Oleth-10 Dimethicone
AKA: Polypropylene Glycol 4 Oleth-10 Dimethicone, Silicone Emulsifier
Synthetic
Occlusive
Silicone
Not Clean
Siloxanes and Silicones, hydropoly(oxy-1-methylethylene) methyl, 9(Z)-octadecylpoly(oxyethylene) methyl, dimethyl
Form
Liquid
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Creates Protective Barrier
Traditional Use
Hybrid synthetic ingredient combining propylene glycol, ethoxylated oleyl alcohol, and silicone chemistry. Created to provide both emulsification and silicone conditioning in cosmetic products.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: CosIng · EWG · CIR