Polycaprylylsilsesquioxane

AKA: Silicone Resin
Synthetic
Silicone
Plant Oil
Not Clean
Polycaprylylsilsesquioxane
CAS #
-
Form
Liquid
Functions
Not Reported
Provides lightweight silky texture
Creates smooth skin feel
Helps product spread evenly
Traditional Use
Developed as a modern silicone polymer in the late 20th century. Used in cosmetics as a silky texture enhancer and absorbent powder that reduces shine and improves product feel on skin.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
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