murphyChondrus Crispus
AKA: Irish Moss, Carrageenan Moss, Sea Moss
Plant-Derived Synthetic
Skin Conditioner
Clean
OriginAtlantic, North America, Europe
Irish Moss
CAS #
244023-79-8
Skin Types
●all-skin-types
Best For
General
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.
Locks in moisture
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not an Eye Irritant
1 study / 1 not irritating (CIR 817)
Concentration Guide
Leave-on0.00004–0.8%
Rinse-off0.005–1.4%
0%50%100%
CIR reported use · 2020 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR