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Ascophyllum nodosum powder
AKA “Knotted Wrack Powder, Seaweed Powder”
Skin Conditioning
Ingredient Facts
Ascophyllum nodosum powder
AKA: Knotted Wrack Powder, Seaweed Powder
Skin Conditioning · Skin Conditioning · EWG: 3
Plant-Derived Synthetic
Skin Conditioner
Marine
Not Clean
Ascophyllum Nodosum Powder is the powder obtained from the dried, ground Alga, Ascophyllum nodosum (L.), Fucaceae
CAS #
84775-78-0
Form
Powder
See origin →
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
Processed form of the brown seaweed created for ease of use in cosmetic formulations, developed in the 20th century as a standardized ingredient to deliver the traditional benefits of seaweed in powdered form.
Skin Types
●all-skin-types
Best For
Dullness
Pregnancy & Breastfeeding Safe
Yes
Verified Jun 2026
Data: CosIng · EWG · CIR