Potassium Undecylenoyl Alginate

Potassium Undecylenoyl Alginate molecular structure
molecular structure · PubChem
AKA: Alginate Surfactant
Synthetic
Emulsifier
Skin Conditioner
Hair Care
Marine
Not Clean
OriginDerived from alginic acid, a naturally occurring polymer extracted from brown seaweed, combined with potassium and undecylenic acid. Synthesized by chemically linking undecylenic acid to alginate polymer, then neutralizing with potassium hydroxide.
Alginic acid, reaction products with 10-undecenoyl chloride, potassium salts
CAS #
224580-88-5
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2015
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR