Why worry about bone density Because you want your bones to carry you a long way in life: Bone density and strength are important to maintain, especially if you want to keep an active, healthy lifestyle. Why use Ostivone®C? It enhances the body's absorption of calcium: Ostivone's primary ingredient, Ipriflavone, has been studied in more than 60 clinical studies to improve bone mineral density by improving calcium absorption into the bones. Because of this action, Ostivone® works best when taken daily with a calcium supplement. It provides the same daily amount which promoted bone health in clinical trials: Ostivone® doesn't just give you a trace amount of Ipriflavone - it provides the levels you need for healthy calcium absorption. It may help bone-building in its own right: While Ipriflavone, Ostivone's key ingredient, works great with calcium, it may also support the stimulation of bone formation.