This method of preparation is most often used for roots and barks. You will need to bringing water to a boil, add the appropriate amount of herb, and then bring the preparation to boil and simmer as per the directions until some of the liquid is gone. This preparation will take a few hours. With the Essiac® powder “decoction” you will reduce the liquid from 88 fluid ounces to72 fluid ounce. Keep in mind that all the glass bottles you use have to be sterilized. SUGGESTED USE: For adults, take 2-4 fl. Oz (60-120mL) twice daily, and preferably one hour before or after meals. As a reminder, discuss the supplements and medications you take with your health care providers. One bottle will last 1-2 weeks if taken as suggested. Use within two weeks after opening. OTHER INGREDIENTS: Contains no other ingredients. WARNING: Not to be taken during pregnancy, by nursing mothers or by children under 10 years of age. KEEP OUT OF REACH OF CHILDREN. STORE IN A DRY PLACE AND AVOID EXCESSIVE HEAT. TAMPER RESISTANT; DO NOT USE IF SEAL UNDER CAP IS BROKEN OR MISSING. *This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease . Burdock root, sheep sorrel, slippery elm, Indian rhubarb root, alcohol 15%