Burdock Root, Sheep Sorrel, Slippery Elm Bark and Turkey Rhubarb Root Extract. We have increased the concentration of herbs by weight to create a concentrate equivalent to 6 times comparable bulk tea strength, so you can use less. Preserved with alcohol - just put your tablespoon in a cup of boiling water, let cool and the alcohol evaporates! Dose: 1 tablespoon in water twice daily.