murphyChondrus crispus extract
AKA: Irish Moss, Carrageenan Extract
C Complex Serum
Josh Rosebrook
Clearing Mask
Indie Lee
Doctor's Scrub
Goldfaden MD
Doctor's Scrub Advanced
Goldfaden MD
Dutch Dirt Mask
Bloom Effects
Ready, Set, Smooth
Goldfaden MD
ReDimension Hydra Dew Luminizer
RMS Beauty
ReDimension Hydra Powder Blush
RMS Beauty
True Skin Radiant Priming Serum
ILIA Beauty
Glow I.V.
Kosas
Plant-Derived
Skin Conditioner
Extract
Not Clean
OriginChondrus crispus is a red algae species harvested from cool North Atlantic coastal waters in Europe and North America. The thallus is typically dried and then extracted using hot water or alkaline solutions to obtain the carrageenan polysaccharides.
Chondrus Crispus Extract is an extract of the carrageenan, Chondrus crispus, Gigartinaceae
Family
Rhodophyceae (Red Algae family)
Plant Part
Thallus
CAS #
244023-79-8
Form
Liquid
Skin Types
●all-skin-types
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
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.
Viscosity Controlling
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.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
1 study / 1 not irritating (CIR 817)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 817)
Not an Eye Irritant
1 study / 1 not irritating (CIR 817)
Concentration Guide
Leave-on0.000003–0.49%
Rinse-off0.0018–0.5%
0%50%100%
CIR reported use · 2020 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR