LIQU3D! D3 provides a natural and convenient way to receive your daily vitamin d3. Vitamin D3 is arguably one of the most important vitamins as it is found within the cells of every gene in the body. Vitamin D3 is essential to build & maintain strong bones, improve immune function, support cardiovascular health & energy, and even prevent & manage stress and depression. D3 is what's known as a steroidal hormone in the body in that it plays a crucial role in hormonal health and production that is essential to build muscle, lose fat, and for overall total quality of life.