Caffeine is a stimulant drug used for mental alertness and to accelerate energy and power. It is also used to delay muscle fatigue as it goes deep into the muscle tissues.

Chromium.

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.

Garcinia Cambogia- Gambooge, a subtropical version of the Garcinia genus and native to Indonesia, is the local name for garcinia cambogia. It bears a pumpkin like yellow coloured fruit, which extract, together with the rind, is in India a curry condiment. Extracts are also being used in several herbal appetite suppressants, but also in some energy providing products and supplements. In the body building community, besides the weight loss properties of garcinia cambogia, the main component, hydroxycitric acid, or HCA, seems to increase the levels of lipolysis in athletes. HCA may even prove to be more effective in combined use with carnitine and pyruvate. In India, garcinia cambogia was traditionally used to treat edema, constipation, irregular menstruation and against intestinal parasites. Further uses include combating rheumatism and bowel related troubles.

Guarana Extract is the extract of the guarana plant. It contains a significant amount of guaranine, a substance that is similar to caffeine found in coffee beans. It helps stimulate the adrenal glands and increase the production and release of hormones such as epinephrine, norepinephrine (adrenaline), and dopamine. This helps the metabolism of the body that enhances fat loss, and increases energy and endurance. It helps the body burn the fats to be used for energy. It aids in fighting stress, weakness and fatigue. As a stimulant, it also improves mental alertness, clarity, focus, concentration, and memory retention. Guarana also also improves the libido or sex drive in both men and women. Guarana also contains tannins that help prevent diarrhea and soothes the digestive system.

L-Carnitine - The body’s fat is turned into energy by the help of L carnitine. Its production in the body is done by the kidneys and the liver. However, it’s found to be stored and present in the brain, sperm, heart and skeletal muscles. The amount of L carnitine or cartinine produced in ones body is sufficient for conversion of fat into energy. However, some people might have deficiencies in cartinine production. Carnitine has several benefits however it must not be taken without doctor’s prescription. Carnitine has been useful in the treatment of stable angina and there is evidence to support this. Apart from this, it has also found to be useful for someone who had a heart attack or heart failure.

White Willow Bark, which is often used as a natural alternative to aspirin, and is best not to be used by individuals allergic to aspirin. White willow bark extract offers little benefit to weight loss by itself but when used with other dietary supplements, it is thought to work as a thermogenic and help to elevate energy expenditure and promote the metabolsim of fat.