Sodium Hydroxypropyl Starch Phosphate
AKA “Modified Starch, Starch Derivative
Ingredient
Ingredient Facts
Sodium hydroxypropyl starch phosphate
AKA: Modified Starch, Starch Derivative
Ingredient · Abrasive · EWG: 1
Synthetic
Clean
Starch, phosphate, 2-hydroxypropyl ether, sodium salt
CAS #
221355-22-2
Form
Powder
See origin →
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.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR