pore clogging ingredient
The extract coming from Laminaria Saccharina, a brown algae. According to manufacturer info, it's loaded with a bunch of good-for-the-skin things: alginates are polysaccharides (a big molecule from repeating sugar units) that are water-loving and can form a protective film on the skin. This means moisturizing, skin protecting and soothing magic properties.
The extract also contains another polysaccharide called laminarin, that has decongestant and lipid-reducing action that might be useful for combination, acne-prone skin types.