ESC LABORATORY Arnica Tincture - External Horse Care - Blows and bruises 500ml The Arnica mother tincture, a natural solution to be applied in case of blow and contusion : The Arnica mother tincture is obtained after maceration of the plant in a hydro-alcoholic solution for several weeks. This method of preparation provides a highly concentrated base of active ingredients such as flavonoids and sesquiterpenic lactones contained in Arnica flowers. Its substances have recognized properties to treat bruises. Indeed the anti-inflammatory and analgesic properties of the plant would help to reduce the bleeding that causes bruising.