Sodium Hydroxypropyl Starch Phosphate

AKA: Modified Starch, Starch Derivative
Synthetic
Clean
OriginDerived from plant starches, typically sourced from corn, potatoes, or other cereal grains. Modified through hydroxypropylation and phosphorylation chemical reactions applied to the native starch molecules.
Starch, phosphate, 2-hydroxypropyl ether, sodium salt
CAS #
221355-22-2
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Abrasive
Bulking
Viscosity Controlling
Anti-Inflammatory
Antimicrobial
Fights Acne
Gently polishes surface
Adds volume
Controls product thickness
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 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
CIR lists it as not reported to be in use.
CIR · report published 2026
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR