Provasmin contains micronized diosmin. Micronized Diosmin is sold throughout the world under different brand names. In the United States it is sold under our name Provasmin. The name tells you what the product is. PRO=product, VAS=Vascular, and MIN=Diosmin. Worldwide clinical studies have been performed with diosmin. Over 25,000 patients have participated in these studies over the last 20 years. The results of these studies have demonstrated that Provasmin (micronized diosmin) is a safe and beneficial way to support healthy leg vein health. Provasmin is the only product which contains the micronized diosmin. Other products may contain diosmin, but not micronized. Provasmin the only micronized diosmin sold in the United States.