Potassium Undecylenoyl Carrageenan

AKA “Carrageenan Surfactant”

Skin Conditioning

Ingredient Facts

Potassium undecylenoyl carrageenan

AKA: Carrageenan Surfactant

Skin Conditioning · Emulsion Stabilising · EWG: 4

Synthetic

Emulsifier

Skin Conditioner

Hair Care

Marine

Not Clean

Carrageenan, reaction products with 10-undecenoyl chloride, potassium salts

CAS #

224580-89-6

Form

Powder

See origin →

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

Traditional Use

A modern cosmetic ingredient combining undecylenic acid with carrageenan (a red seaweed extract used historically as a thickener). This synthetic hybrid was developed to provide both antimicrobial and texture-enhancing properties in contemporary formulations.