Its unique formula contains safe, natural elements that cause vasodilation. This is ideal when used in conjunction with a physical warm up to prepare the muscles & joints helping to prevent strains & pulls. Vasodilation is the widening of blood vessels, this effect helps to increase the passable surface area of the vessels to provide a more efficient supply blood to the metabolically active muscle tissue. Blood carries the oxygen & nutrients that muscles need to perform at their best. Waste products including lactic acid may also be removed more efficiently & cause vessels become closer to the skin as a means to release heat from the body. Muscles are now prepared for sport. Vasodilation means you may perform for longer periods with less fatigue as your muscles require an efficient supply of oxygen & nutrients.