Sargassum siliquastrum extract

AKA: Pod Seaweed Extract
Plant-Derived
Skin Conditioner
Extract
Not Clean
OriginNative to East Asia. Sargassum siliquastrum is a brown seaweed from the Sargassaceae family native to East Asian coastal waters. The extract is obtained through solvent extraction of the whole plant material.
Sargassum Siliquastrum Extract is the extract of the whole plant, Sargassum siliquastrum
Family
Sargassaceae
Plant Part
Whole Plant
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
Dullness
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-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2026
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR