Food supplement based on Vitamin D3 (cholecalciferol) providing 100 mcg (4,000 IU) per drop. Vitamin D3 contributes to the normal absorption and utilization of calcium and phosphorus. It helps maintain normal levels of calcium in the blood and contributes to the maintenance of bones and teeth in normal conditions. It supports the normal functioning of muscles and the immune system and contributes to the cell division process. How to use: 1 drop a day under the tongue. Shake well before use.