Sargassum fusiforme extract
AKA “Brown Alga”
Extract
Ingredient Facts
Sargassum fusiforme extract
AKA: Brown Alga
Extract · Skin Protecting · EWG: 3
Plant-Derived
Barrier Support
Marine
Extract
Not Clean
Sargassum Fusiforme Extract is an extract of the Brown Alga, Sargassum fusiforme, Sargassaceae
Family
Sargassaceae
Plant Part
Thallus
CAS #
223751-79-9
Form
Liquid
See origin →
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
A brown seaweed with a long history of use in Traditional Chinese Medicine and Japanese herbalism as a nutritive tonic and for supporting thyroid health. Used in traditional skincare preparations.
Skin Types
●all-skin-types
Best For
Dullness
Pregnancy & Breastfeeding Safe
Yes
Final Report: Safety Assessment of Brown Algae-Derived Ingredients as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Sargassum Fusiforme Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
Sargassum Fusiforme Extract
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Breeding in the Economically Important Brown Alga Undaria pinnatifida: A Concise Review and Future Prospects.
Shan T, Pang S
Frontiers in genetics, 2021
Screening of Bioactive Properties in Brown Algae from the Northwest Iberian Peninsula.
Silva A, Rodrigues C, Garcia-Oliveira P, Lourenço-Lopes C, Silva SA et al.
Foods (Basel, Switzerland), 2021
Screening of Bioactive Properties in Brown Algae from the Northwest Iberian Peninsula.
Silva A, Rodrigues C, Garcia-Oliveira P, Lourenço-Lopes C, Silva SA et al.
Foods (Basel, Switzerland), 2021
Verified Jun 2026
Data: CosIng · EWG · CIR