Dr. Christopher originally made this formula to help cleansing difficulties of the digestive tract. His formula contains cascara segrada, raspberry leaf, ginger, goldenseal root, rhubarb root and more. It is recommended to take this formula with dinner so that the next days' bowel movement is done first thing in the morning, just after your glass of water upon waking up. The FDA has not approved of this formula even though it has been around for over 60 years, nor do they approve of these statements and you are taking this vegan friendly food supplement at your own risk, usually 4 capsules to start and then reducing to 2 capsules until the bottle is finished with or after dinner. These statements are not intended to diagnose, treat, cure or prevent disease and can NOT be returned for a refund. 568*HERBA KLEANZ (Dr. Christopher's formula):cascara sagrada bark, raspberry leaf, European barberry root, ginger root, goldenseal root, bird pepper seed, lobelia leaf and Chinese rhubarb root.