Ascophyllum Nodosum … Extract

This ingredient is derived from several species of brown seaweed — primarily Ascophyllum nodosum, Fucus vesiculosus, and Laminaria species — harvested from North Atlantic waters. The extract is rich in polysaccharides, minerals, and amino acids that are naturally present in marine algae.In skincare formulations, it functions as an emollient and skin conditioner, helping to soften the skin surface and support the skin's natural moisture barrier. The seaweed polysaccharides form a light film on the skin, which can help reduce transepidermal water loss.

Brown seaweed contains complex polysaccharides — particularly alginates and fucoidan — that have humectant and film-forming properties. When applied topically, these molecules attract and bind water to the skin surface, helping to maintain hydration levels.Additionally, the extract's mineral content (including iodine, potassium, and trace elements) and amino acids may contribute to overall skin conditioning and support the skin's natural regulatory processes.

This ingredient is typically found in moisturisers, serums, and treatment masks at low to moderate concentrations. It pairs well with other humectants and occlusives in formulations designed to support hydration and skin conditioning. Apply to clean, damp skin for optimal moisture retention, and layer with other skincare products as part of your routine.

Generally well-tolerated across most skin types. Those with iodine sensitivity or hypersensitivity to seaweed should patch-test first, as marine extracts contain trace iodine.