Sargassum muticum extract
AKA: Japanese Wireweed, Alga
Plant-Derived
Barrier Support
Marine
Extract
Not Clean
Sargassum Muticum Extract is an extract of the Alga, Sargassum muticum, Sargassaceae
Family
Sargassaceae
Plant Part
Thallus
Form
Liquid
Functions
Skin Protecting
Helps rebuild and strengthen your skin barrier — the invisible shield that keeps moisture in and irritants out. Essential after over-exfoliating or harsh weather.
Nourishes & Protects
Traditional Use
An invasive brown seaweed species; while not traditionally used historically, it has been incorporated into modern Asian skincare formulations for its mineral content.
Skin Types
●all-skin-types
Best For
Dullness
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