Sodium Hydroxypropyl Starch Phosphate

Sodium Hydroxypropyl Starch Phosphate 1
Sodium Hydroxypropyl Starch Phosphate 2
Sodium Hydroxypropyl Starch Phosphate 3
AKA: Modified Starch, Starch Derivative
Synthetic
Clean
Starch, phosphate, 2-hydroxypropyl ether, sodium salt
CAS #
221355-22-2
Form
Powder
Functions
Abrasive
Bulking
Viscosity Controlling
Anti-Inflammatory
Antimicrobial
Fights Acne
Gently polishes surface
Adds volume
Controls product thickness
Traditional Use
A modern starch derivative developed as a cosmetic ingredient in the late 20th century. Created as a thickener and stabilizer that provides texture improvement and suspension properties in formulations.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: CosIng · EWG · CIR