5-HTP may be useful if you are overweight as many believe that weight gain may be caused by decreased amounts of tryptophan to 5-HTP, which causes low serotonin levels, which may cause constant hunger. Adding 5-HTP to your diet may reduce this deficiency and remove these feelings of hunger.

Acetyl L-Carnitine is also known as ALCAR, and has been widely popularized as the superior form to L-Carnitine pertaining to the bioavailability. Carnitine is the quaternary ammonium compound which is being used to move fatty acids out of the cytosol and into the mitochondria when the fats are being broken down, when these are needed to generate additional metabolic energy. The biologically active form of Carnitine is L-Carnitine; Acetyl L-Carnitine is the acetylated form of L-Carnitine and is also known as Acetylcarnitine. L-Carnitine is generally derived from lysine and methionine, which are both amino acids. While the neuro-protecting properties of Acetyl L-Carnitine have been tested on lab animals and some proof was obtained, the role of Acetyl L-Carnitine as a weight loss agent still needs some testing in studies on humans.

Caffeine is of course a major component of every day drinks such as tea and coffee and is also included in German American Technologies Jetfuel. It is claimed that over 70% of the American population take more than 300 milligrams daily. As well as in familiar drinks it is used in energy drinks such as Red Bull as well as in many over the counter analgesics and other medication. Medically it is a as trimethylxanthine, useful as a heart stimulant and it also works as a mild diuretic. It works in the same way as certain drugs, the amphetamines, cocaine, and heroin, all of which work on the action of the brain although in a milder way, and like them it is addictive.

Evodiamine is a chemical that is extracted from a particular species of plants that has been shown to reduce overall fat intake.

Green Tea Extract is currently being promoted by the health conscious community as a weight loss product, which does not do this incredible concoction of helpful ingredients justice. Many green tea extracts nowadays exclude caffeine, to avoid the associated side effects and lower the ingestion of this legal addictive stimulant. The main characteristic of the green tea extract should be the antioxidative effect, which surpasses Vitamin C twentyfold. But the other traits are not to be forgotten, it is anti-inflammatory, anti-carcinogen and anti-radiation. The unique combination of green tea catechins, derivatives of apicatechin, and flavonoids, which belong to the same family, are proven scavengers of free radicals and an unavoidable addition to any dietary supplement combination, body building or weight loss as the target objective.

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.

Guggulsterone- Commiphora wightii, or the so called Guggul tree is a flowering shrub or rather a small tree which can grow up to a size of 4 meters. Once very common in India, it is now there listed as endangered, but not in northern Africa or elsewhere in central Asia. It was very popular in the Indian Ayurvedic medicine, but also currently in the western medicine for treating of heart problems. The hydrocarbon secretion of Guggul contains a plant sterol, guggulsterone, which in the human body seems to act as an antagonist to the farnesoid X receptor. Furthermore, guggulsterone is active in increasing the natural thyroid production. This in turn stimulates the metabolism and may raise the body temperature, burning stored excess fat.

Hoodia Gordonii, which although popular, has no published randomized controlled trials in humans to show hoodia is safe or effective in pill form. One study published in the September 2004 issue of Brain Research found that injections of p57 (The Active ingredient in Raw, Fresh Cut Hoodia, not dried) into the appetite center of rat brains resulted in altered levels of ATP, an energy molecule that may affect hunger. The animals receiving the P57 injections also ate less than rats that received placebo injections. However, this was an animal study and INJECTIONS IN THE BRAIN are very different from oral consumption, so it cannot be used to show that oral hoodia can suppress appetite in humans. Hoodia Gordonii is a succulent (a cactus of the aloe family) found in the Kalahari desert of South Africa. Most Hoodia Gordonii products contain very little, if any of the active ingredient needed to suppress hunger. Real Hoodia is very rare and is even an endangered plant. Most importantly, Hoodia has only demonstrated any effect in fresh, raw pieces of the plant. The effectiveness of powdered Hoodia has yet to be shown and may actually increase hunger. It's main use is as a cheap alternative to the more expensive weight loss herbs, which are the only alternative left after the banning of ephedra. Most supplement manufacturers can not use the more expensive weight loss herbs because it will result in a product that would be too expensive to compete with other more popular inexpensive diet supplements.

Medium Chain Triglycerides (MCT) are fatty acids which are shorter in length. They therefore are similar to carbohydrates and get easily digested and absorbed and get used up as energy. It is used as an alternative source of food by patients who are unable to digest normal oils and fats. Medium chain triglycerides are water-soluble and because if their short length get absorbed into the blood stream quickly. From the bloodstream it gets directly transported to the liver. It is an immediate source of energy and only a miniscule percent of it gets converted to body fat. It is naturally found in coconut oil, milk fat and in palm oil. Medium chain triglycerides are available in capsule and in liquid form; this is obtained through the process of lipid fractionation.

Octopamine is a biogenic substance which is containing an amine group, apparently related to noradrenaline, which is a catecholamine functioning as both, neurotransmitter and a hormone. Similar to norepinephrine, which is another name for noradrenaline, octopamine may act as a stress hormone, triggering increased heart rate, energy consumption and blood flow, even the blood pressure. One side effect of octopamine is apparently the release of fat from the adipocytes, which are the fat cells where excess energy is being stored. This side effect prompted the use of octopamine as a dietary supplement aimed at weight loss, but used in combination with other stimulants. Octopamine has been discovered in the middle of the twentieth century, but the use as a fat removal agent is very recent.

Synephrine HCL- Synephrine Hydro Chloride is commonly believed to have properties that assist is increasing the metabolic rate of the body and boost energy. It is similar to ephedrine and caffeine and stimulates the metabolism of fat without cardiovascular side effects. The supplement is used by athletes for building muscular mass through an increased metabolism in the body. Other than the aforementioned uses, it is used as a laxative and an aromatic expectorant. Synephrine HCL does have its side effects and it is advised that the supplement not be used for more than three days at a stretch. Because of its potency, it can lead to an increase in the heart rate, anxiety, rise in blood pressure, nervousness and an inability to urinate, which are dangerous complications.

Vinpocetine is a compound that is derived from a substance found in the leaves naturally called vincamine. Vinpocetine was established in 1960s. This was available in Japan and Europe with prescription and in Canada and the United States it was available in health food stores as well as online as dietary supplement. Vinpocetine increases the blood circulation and reduces the impairment in the brain. Vinpocetine is given to people suffering with Alzheimer’s disease as a complementary treatment. It enhances the use of oxygen in the brain and protects the brain cell from damage. Thereby it works in enhancing the blood flow towards the brain. Vinpocetine prevents strokes and memory disturbances. Vinpocetine is useful in improving, hearing, eyesight and also in alleviating problems that are connected to menopause. Vinpocetine has effect on the damaged areas in the brain and is also an anti-oxidant. So it shields the brain from aging. The dosage recommended is 5mg tablet twice or thrice daily.

Yohimbine HCL, also known as 17-hydroxy-yohimban. Yohimbine is an odorless; white crystalline powder; scarcely soluble in water; soluble in chloroform and alcohol. The chemical title is 17-hydroxy-yohimban-16- carboxylic acid, methyl ester. Yohimbine works as a weak blocker of alpha-adrenergic receptor. It is used in angina pectoris and arteriosclerosis, and has been used as a mydriatic and local anesthetic and for its supposed aphrodisiac properties. Yohimbine is a therapeutic derivative of the bark of a tree named Corynanthe yohimbine.