Hydrolyzed Carrageenan
molecular structure · PubChem
AKA: Carrageenan Hydrolysate, Carrageenan Extract
Synthetic
Skin Conditioner
Marine
Not Clean
Hydrolyzed Carrageenan is the hydrolysate of Carrageenan derived by acid, enzyme or other method of hydrolysis
CAS #
53973-98-1
Form
Powder
Functions
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
Carrageenan is derived from red algae and has been used traditionally in Irish and Northern European cuisine and folk medicine for centuries. Hydrolyzed carrageenan is a modern extraction developed to provide polysaccharides for improved texture and conditioning in cosmetics.
EWG
3
CIR
Insufficient data
Pregnancy
Yes
CIR Safety Findings
all-shades-safe
Potential Sensitizer
Concentration Guide
Dermal absorption: 2%. Source: CIR Safety Assessment (CIR Seq 157).
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: CosIng · EWG · CIR