Essiac Tonic stays true to the traditional four herb Ojibwa cleanse formula.* This liquid extract tonic has just the right proportion of each of these four herbs to provide you with the type of cleanse you expect from Herbs, Etc.:* Burdock (Arctium lappa) root Sheep Sorrel (Rumex acetosella) herb Slippery Elm (Ulmus rubra) inner bark Chinese (aka Turkey) Rhubarb (Rheum officinale) root Essiac Tonic is highly concentrated. This 2 ounce bottle equals up to 68 ounces of brewed, mixed or bottled tea. That’s four 17 ounce bottles of tea. Since Essiac Tonic is not a tea, it’s convenient. There isn’t any mixing, brewing or refrigeration needed. Take it in water or your favorite beverage.