Great product! An essential mineral, very important for our organism! According to experts, an immune system shaper! I use as a supplement to preventive action against cancer, to fight free radicals, to increase immunity, to regulate the endocrine system, associated with the consumption of 5% Lugol, for weight loss, associated with physical exercise and correct nutrition, Selenium without genetically modified organisms, without yeast, without yeast, without wheat, without gluten, without soy, without milk, without egg, without fish, without shellfish or ingredients. I recommend and hope to buy again on this site!