There is a product called Invisible Veins which uses an ingredient called DiosVein Diosmin made in Spain. This ingredient has been around in Europe for over 40 years and is actually a Rx drug there for varicose veins and hemorrhoids. Americans are not really aware of this product since it is a dietary supplement here. The product is well researched (google "Daflon500", which is the name of the drug in Europe) and has even show to be safe in pregnant women.