A convenient daily oral vitamin D spray containing 400iu`s per dose, to aid bone & teeth health, support the immune system & help combat vitamin D deficiency. Suitable for vegetarians & tastes great! Contains 100 sprays. Vitamin D (for humans this is D3) is essential, along with magnesium, to absorb calcium. Without D3 & magnesium, calcium is simply not soluble. It will not enter our bones & settle in the soft tissues around our joint, in our muscles & in our blood cholesterol. Calcium is very good for us but only if we can absorb it. Vitamin D3 is a fat soluble vitamin, so we have developed D Lux 400 to be oil-based (using natural sunflower oil), so increasing it retention within the body. By applying it directly into the mouth, ideally under the tongue, it is absorbed directly into the blood system rather than having to be processed by the digestive system & major organs. This ensures no loss during the absorption process. The solution has been microemulsified to ensure the particle size is optimal for absorption in this way.