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Botanical Extract

Ascophyllum Nodosum Extract (Knotted Kelp)

A North Atlantic brown seaweed extract rich in fucoidan, alginic acid, and iodine — hydrating, firming, and with genuine evidence for skin cell metabolism support.

HydratingFirmingAntioxidantMarine ingredient
✓ Safe
Comedogenic Rating
0/5
Irritation Potential
0/5

What is it?

Ascophyllum nodosum extract is produced by aqueous or hydroglycolic extraction of the whole thallus (body) of the seaweed. The fucoidan fraction is sometimes extracted separately for higher-potency applications. The extract is naturally rich in minerals (iodine, calcium, magnesium) and trace elements alongside its polysaccharide actives.

Skin hydration, anti-aging via fucoidan and phlorotannins, firming, antioxidant protection.

Key Benefits

✦
Fucoidan
The primary sulfated polysaccharide in brown seaweeds — fucoidan has demonstrated anticoagulant, antiviral, antioxidant, and anti-aging properties. In skin, it promotes fibroblast activity and inhibits hyaluronidase (protecting natural hyaluronic acid).
◈
Phlorotannins
Unique marine polyphenols found only in brown algae — phlorotannins have antioxidant activity significantly higher than terrestrial polyphenols in some comparative measurements, plus UV-protective properties.
✧
Alginic Acid Hydration
Alginic acid forms a moisture-retaining film on skin surface, reducing TEWL and creating immediate softness and plumpness.
◉
Mineral Richness
Natural iodine, calcium, potassium, and trace minerals support enzymatic activity in the skin and may contribute to improved metabolism and repair.

Suitable for

All skin typesDehydrated skinMature skinEnvironmentally stressed skin

Main Actions

✓ Hydrating (alginic acid, fucoidan)✓ Antioxidant (phlorotannins)✓ Anti-aging✓ Firming
Sustainable seaweed harvesting

Ascophyllum nodosum is harvested from wild seaweed beds, primarily in Norway, Iceland, and Atlantic Canada. Sustainable harvesting practices are well-established for this species, but look for brands that certify their seaweed sourcing from managed beds.

CategoryBotanical Extracts

Frequently Asked Questions

What does Ascophyllum Nodosum Extract (Knotted Kelp) do for skin?
Skin hydration, anti-aging via fucoidan and phlorotannins, firming, antioxidant protection.
Who should use Ascophyllum Nodosum Extract (Knotted Kelp)?
Ascophyllum Nodosum Extract (Knotted Kelp) is suitable for: All skin types, Dehydrated skin, Mature skin, Environmentally stressed skin.
Are there any warnings about Ascophyllum Nodosum Extract (Knotted Kelp)?
Ascophyllum nodosum is harvested from wild seaweed beds, primarily in Norway, Iceland, and Atlantic Canada. Sustainable harvesting practices are well-established for this species, but look for brands that certify their seaweed sourcing from managed beds.

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