Hydrolyzed Corn Starch Octenylsuccinate

AKA: Modified Corn Starch, Octenyl Succinic Anhydride Starch
Synthetic
Occlusive
Clean
OriginDerived from corn starch, a carbohydrate extracted from corn kernels of the grass family Poaceae. Produced through hydrolysis of corn starch followed by esterification with octenylsuccinic anhydride.
Hydrolyzed Corn Starch Octenylsuccinate is the reaction product of octenylsuccinic anhydride with Hydrolyzed Corn Starch
CAS #
100209-41-4
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Absorbent
Binding
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Antioxidant
Anti-Inflammatory
Boosts Collagen
Creates protective layer
Absorbs excess oil
Holds ingredients together
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.06%
Rinse-off0.18–0.67%
0%50%100%
CIR reported use · 2013 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR