5-HTP is a natural ingredient otherwise known as griffonia simplifolia. It has been used for multiple purposes, and they have used it in a number of different diet pills, saying that 5-HTP will help you to achieve better results in general. They say that 5-HTP is the natural product that will help you to finally take control and because it alters serotonin levels in the brain, some would say that it actually suppresses appetite. However, that is not actually true. 5-HTP or 5-hydroxy tryptophan has been known to lift mood. But it has never actually been known to suppress appetite or otherwise promote weight loss. This in mind, we would not actually recommend that you use it as a main ingredient, and if it is proposed to be that, you are obviously just wasting your time and money. But it can be a complimentary ingredient.