Laminaria, mannitol, fructose, alginic acid, a significant amount of iodine, most of whom are in the form of iodides and yodorganicheskih compounds, vitamins B, B2, A, C, D, E, brown pigment, mineral salts of potassium, sodium, magnesium, bromine, cobalt, iodine.In atherosclerosis, in diseases of the mucous membrane of the pharynx and larynx with an increase in thyroid gland. In the application of reduced blood viscosity, decrease vascular tone and blood pressure. Laminaria reduces cholesterol in plasma, delaying the development of atherosclerosis.