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As

Ascophyllum Nodosum Extract

Ascophyllum Nodosum ExtractSoothing

A brown seaweed extract with clinical evidence supporting its use for sensitive and inflamed skin.

What it does

Ascophyllum nodosum extract comes from knotted wrack, a brown seaweed harvested from North Atlantic coasts. A 2021 market review of marine ingredients found it has clinical evidence supporting its use for sensitive skin, with proposed mechanisms including reducing skin inflammation and improving the skin barrier function. It is used in serums, moisturizers, and treatment products targeting sensitive or reactive skin.

The evidence, graded

moderateA 2021 market overview of marine ingredients for sensitive skin found that Ascophyllum nodosum extract presents 'clinical evidence supporting their use for sensitive skin,' proposed to reduce skin inflammation and improve the barrier function.Ferreira 2021 · Mar Drugs ↗

Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.

Also known as

knotted wrack extract, Norwegian kelp extract, egg wrack extract

Pairs worth knowing

Hyaluronic Acid · works together ↗Niacinamide (Vitamin B3) · works together ↗Ceramides · works together ↗Panthenol (Pro-vitamin B5) · works together ↗

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