Lithothamnion calcareum extract

Lithothamnion calcareum extract 1
Lithothamnion calcareum extract 2
AKA: Red Algae Extract
Plant-Derived
Skin Conditioner
Marine
Extract
Clean
Lithothamnium Calcarum Extract
Family
Corallinaceae (family of red algae)
Plant Part
Thallus
CAS #
Varies depending on extract
Form
Liquid
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
Derived from red algae, traditionally used in coastal European and Asian communities as a mineral-rich ingredient. Modern cosmetic adoption leverages its calcium and trace mineral content for skin conditioning and pH buffering.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Moderate Irritant
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR