And which juices they use is a proprietary trade secret, so don’t expect to find it anywhere. There are not all that many tropical fruits, and mango is one of the few…if you want to be safe or if it is a serious allergy, I would avoid HPNOTIQ.
Even though the ingredients are proprietary, if you ask the manufacturer they will probably tell you if it contains mango juice. (I mean asking, “Does it contain mango?” Not “What does it contain?” just to clarify :-))