Naturvit® Si is colloidal silica. Silicon, contained in silica, acts as an important trace element for your overall well-being. Recommended dosage: Take 2 teaspoons once a day (single dose corresponds to a daily dose of 40 mg) undiluted or with any amount of liquid over a longer period of time. Do not exceed the recommended daily amount. Ingredients: water, 7g silicon dioxide per 100ml