It Is drops that you put under your tongue 3 times a day and you are limited to about 500 calories a day. I am really goint to try and go on it tomorrow for sure. Have been thinking about it for 6 moinths, but just don't want to give up food. I like to eat. My brothe r and sister have really done very well. They have been heavy all their lives, so for them it is a godsend and they are faithful to the diet and their Dr say they are doing great.