Caffeine is a central nervous system stimulant that temporarily wards off drowsiness and boosts alertness and energy.

Citrus Aurantium, More commonly called "bitter orange", which is taken from unripe oranges. Research shows that citrus aurantium can increase the metabolic rate without affecting heart rate or blood pressure, breaks down fat, burns calories and may act as an appetite suppressant.

Synthetic Guggulsterones are derived from a herb, commiphora mukul, which has been proven to restore lagging metabolic rate brought about by dietary caloric deficiency, such as a diet low in carbohydrates. Though it has cholesterol lowering ability, it is also known as powerful weight loss agent due to the increased conversion of the inactive thyroid hormone T4 into its active part T3 in the liver. Furthermore, Guggulsterones are also known to stimulate the thyroid directly by enhancing TSH (Thyroid Stimulating Hormone) production. This is especially true for two specific guggulsterones codenamed Z and E.

Yohimbe, which when ingested, the body converts to yohimbine and assimilates it into the bloodstream. Yohimbe comes from the bark of a tree that grows primarily in Africa. Yohimbine, an alkaloid, is the primary active ingredient of yohimbe. Yohimbe is commonly used as an aphrodisiac and antioxidant. Yohimbe is also used as a vasodilator, which means that it increases blood flow to the extremities and appendages, this is one of the main reasons why it is found in many sexual aids.