murphySodium/TEA-Undecylenoyl Carrageenan
molecular structure · PubChem
AKA: Red Algae Extract
Plant-Derived
Emulsifier
Skin Conditioner
Hair Care
Not Clean
OriginDerived from red seaweed (Rhodophyceae), carrageenan is extracted from marine algae harvested in coastal waters worldwide. Undecylenoyl groups are chemically attached to carrageenan through synthetic modification, then neutralized with sodium or triethanolamine.
Carrageenan, 10-undecenoyl derivatives, sodium tris(2-hydroxyethyl)amine salts
CAS #
224580-91-0
Skin Types
●all-skin-types
Best For
Acne
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-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR