Dietary Supplement. Ipriflavone. Bone health. Enhances the body's absorption and use of calcium. What better feels like. Ostivone bone formula features ipriflavone, which has been shown in more than 60 studies to support bone mineral density. Ostivone is best when used in conjunction with multi-nutrient bone support products with extra calcium such as Enzymatic Therapy's Osteoprime. A foundation for healthy bones. Vegetarian. enzy.com. Laboratory tested purity, safety & performance. Contains no sugar, salt, yeast, wheat, gluten, corn, soy, dairy products, artificial coloring, artificial flavoring, preservatives or ingredients of animal origin. This product contains natural ingredients; color variations are normal. (This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.)