1,3-Dimethypentylamine Hydrochloride, an Ephedra alternative is responsible for increasing your metabolism and produces the thermogenic effect. This is particularly effective because increased metabolism the stored fat starts to burn quickly.
1,3,7-Trimethylxanthine is another major ingredient in Phen375. It is responsible to surpressing appetite. With all the store fat burning, your body would want to eat more. This enzyme helps in curbing your appetite and makes you feel quickly.
Another ingredient is Sympathomimetic Amine which also helps in boosting metabolism but it does it by increasing the production of Norepinephrine in your body.
Two other ingredients are Dehydroepiandrosterone and L-carnitine which are used to burn body fat and also provide you with the required amount of energy to get you through your day without feeling drained.