Vitamins. Includes calibrated dropper. Easy to take liquid. Alcohol free. Now it's easier than ever to get your daily dose of Vitamin D with this fast-acting, alcohol-free liquid formula is easy to take, and supplies you with the D3 you need. Your body has the unique ability to produce its own vitamin D when exposed to sunlight; however, many people do not get enough of this essential vitamin from exposure to sunshine or from the foods they eat. Liquid D3 from Nature's Truth is potent, readily absorbable, and a convenient way to get enough of this important sunshine vitamin every day. Essential vitamin.