The Ingredient Library · Ingredient · Hveragerði, Iceland
Ascophyllum Nodosum
Ascophyllum Nodosum Extract
A North Atlantic seaweed that helps skin hold on to moisture and glow.
| INCI name | Ascophyllum Nodosum Extract |
|---|---|
| Type | Brown algae extract — hydrating & rebalancing |
| Origin | Hveragerði, Iceland |
| Key benefit | Lasting-feeling hydration and a fresher look |
| Suits | All skin types, including dry and sensitive-feeling skin |
What is this
Ascophyllum Nodosum
Ascophyllum nodosum, known as knotted wrack, is a brown seaweed that grows along cold North Atlantic shorelines. Its extract is rich in water-binding sugars, minerals and antioxidants, and is used in skincare to help support hydration and leave the complexion looking smoother, fresher and more comfortable.
In which products
Formulas with ascophyllum nodosum
Noctis Longevity Night Serum
78.00 $
Silky night serum • 65 ingredients • 90% natural origin • nourishing overnight repair
Noctis Night Deep Cleanser
39.00 $
Argan + Brazil Nut + babassu lipid-rich night cleanser for comfort and barrier support
Renova The Eye Cream
69.00 $
Açaí + vitamin E brightening eye cream • 61 refined ingredients for dark circles, radiance & firmness
Lucis Protecting Day Serum
68.00 $
Niacinamide + hyaluronic acid + vitamin C brightening and firming day serum
Noctis Longevity Night Serum
78.00 $
Silky night serum • 65 ingredients • 90% natural origin • nourishing overnight repair
Noctis Night Deep Cleanser
39.00 $
Argan + Brazil Nut + babassu lipid-rich night cleanser for comfort and barrier support
Renova The Eye Cream
69.00 $
Açaí + vitamin E brightening eye cream • 61 refined ingredients for dark circles, radiance & firmness
Lucis Protecting Day Serum
68.00 $
Niacinamide + hyaluronic acid + vitamin C brightening and firming day serum
Every ingredient in our library serves one measure of success — skin longevity — the years skin keeps its strength, moisture and evenness.
Questions about ascophyllum nodosum
What is Ascophyllum nodosum?
Ascophyllum nodosum, known as knotted wrack or egg wrack, is a brown seaweed that grows in dense beds along cold North Atlantic shores. Its fronds carry distinctive egg-shaped air bladders, and its extract is prized in skincare for its water-binding sugars, minerals and antioxidants.
What does Ascophyllum nodosum extract do for skin?
It helps skin attract and hold moisture, supporting a fresher, smoother, more comfortable look. Its naturally occurring polysaccharides — including fucoidan — along with minerals and vitamins give it a hydrating, antioxidant-supporting profile well suited to daily care.
Is seaweed extract good for sensitive or dry skin?
Ascophyllum nodosum extract is lightweight and non-occlusive, so it suits most skin types — dry and sensitive-feeling skin appreciate its moisture support, while combination and oily skin benefit without heaviness. It is one of the ocean's gentlest contributions to skincare.
Where is Ascophyllum nodosum harvested?
Along the rocky, cold-water coastlines of the North Atlantic — from Scandinavia and the British Isles to Iceland and Canada — where it is gathered at low tide and processed quickly to preserve its naturally occurring actives.
Keep exploring