Aluminum Starch Octenylsuccinate

AKA: HYDROGEN OCTENYLBUTANEDIOATE
Synthetic
Synthetic
Not Clean
Aluminum Starch Octenylsuccinate is a cosmetic ingredient. Rated moderate hazard by EWG.
CAS #
9087-61-0
Form
Powder
Functions
Absorbent
Viscosity Controlling
Absorbs Excess Oil
Prevents Clumping
Controls Viscosity
Traditional Use
A modern synthetic emollient and skin conditioning agent developed by the cosmetics industry in the late 20th century. Created to provide silky texture and water resistance in formulations while offering an alternative to heavier natural oils.
EWG
3
CIR
Insufficient
Pregnancy
CIR Safety Findings
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
The paper trail
🔬Peer-reviewed1 paper
⚖️Regulatory0 listings
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR