Horse Chestnut Complex combines four important herbs in one tablet. The principal active ingredient is Aescin which increases metabolism. The Butcher's Broom (Ruscus aculeatus) - is a plant that is endemic in the Mediterranean countries and is thought to act synergistically with Horse Chestnut. The Grapeseed Extract (Vitis vinifera) is an extract from European grape and fruit is a rich source of anthocyanidins known for its antioxidant properties. The Rutin is one of the most known bioflavonoids, which have a beneficial effect on the capillaries.