Caffeine may be the most popular legal addictive stimulant that is available to mankind. Besides coffee, tea, guarana and kola nut have excess amount of this xanthine alkaloid, which is actually acting as a psychoactive drug. In several plants, caffeine is an effective insect repellant, but this trimethylxanthine is deemed by the Food and Drug Administration as generally safe food substance. It is an antagonist of adenosine receptors. The effect of caffeine is individual and may more or less increase the ability to perform physical and mental labor. It reduces the effects of fatigue and may in long term help predominantly men reduce the risk of developing Parkinson’s disease. It has also been observed that caffeine has nootropic effects, furthermore, regular consumption of caffeine may significantly reduce the risk of heart diseases.

Cayenne- Most of us are aware of the wonders of the hot cayenne, which belongs to the family of capsicum. This herb is mainly used for culinary and health purpose. As compared to black pepper and chilies, it contains less irritating properties. Cayenne when taken naturally works as a natural stimulant and is beneficial for pancreas, kidney and spleen. Cayenne can be taken in herbal tea form, as a natural energy booster or as a capsule to cure yellow fever. Since cayenne contains antiseptic properties it is an effective remedy for sore throats and is used as a gargle. It aids digestion and stimulates saliva and stomach secretion. It also prevents heart attack, reduces cholesterol, allows proper absorption of vitamins, improves blood circulation and effectively clears the sinuses. In the past it was used as a cure for typhoid fever, diphtheria, pleurisy and pneumonia.

Citrus Aurantium is the Latin name for a citrus tree which grows bitter oranges. Traditionally being used by Chinese medicine and herbologists, the extract of the orange and the peel was used as a dietary supplement in concoctions with other herbs to suppress appetite. While other active ingredients of the citrus aurantium may contribute and even promote the effect, the main ingredient used in all weight loss products is synephrine, an alkaloid similar to ephedrine. It is a phenethylamine; it influences the alpha1 adrenergic receptor, constricting blood vessels, additionally increasing the heart rate and the blood pressure. In most cases the use of synephrine is paired with a diet and body building plan, where weight loss and muscle building is essential.

Evodiamine, a bioactive alkaloid extract from the Evodiae Fructus plant, sometimes called Wu-Chu-Yu. Evodiamine is related to capsaicin, found in cayenne pepper. Evodiamine is a vanilloid receptor agonist, and may enhance lipolytic activity. Evodiamine has been shown to raise the body’s skin temperature and decrease core temperature, which is thought to burn calories and fat for energy.

Green Coffee Extract- Diet Pills are not always a recommendable way to lose the excess weight. One needs to switch to more natural extracts as a supplement to loss weight like the Green coffee extract. Diet pills that carry green coffee extracts are very effective in a unique way. This enhances fat burning ability in the body while discouraging burning carbohydrates that are stored as fat in body. Studies have proved that volunteers have on an average lost about 11 pounds in 2 months while consuming diet pills containing Green Coffee extracts. The body is not under any stress while consuming Green Coffee extract diet pills. They are safe to consume and have been tried and tested methods of loosing weight effectively.

Green Tea Extract comes from green tea leaves and has been shown to be a very effective supplement for many common ailments ranging from minor to life threatening. Green tea extract is known for its strong antioxidant qualities, making it popular amongst those who take an active role in ensuring their good health. In fact, green tea extract has twenty times more antioxidants than the same portion of Vitamin C, another clouted supplement for health aficionados. In addition to antioxidants, green tea extract is effective at fighting carcinogens and inflammation. Green tea extract is best known for fighting cancer when combined with other methods, for reducing inflammation, and for encouraging overall good physical health.

L-Tyrosine is a non-essential amino acid, which is used by the cells in order to synthesize the proteins and appears to help stabilize ones mood during periods of high stress levels.

Naringin is the major flavonoid glycoside in grapefruit and gives grapefruit juice its bitter taste. It occurs naturally in all citrus fruits so it is also called citrus Naringin. It is used in medicine for its pharmacological effects such as an antioxidant and for blood lipid lowering. Research also shows that Naringin can be used for inhibition of selected drug-metabolizing cytochrome P450 enzymes, including CYP3A4 and CYP1A2. Its anti-cancer effects are also being studied by researchers. Naringin is treated with potassium hydroxide or another strong base, and then catalytically hydrogenated to make naringin dihydrochalcone, which is used as a sugar-free sweetener 300 times sweater then sugar.

Phenylalanine, which may aid in weight loss through the feeling of satiety or fullness by taking phenylalanine with a glass of water 20 minutes before a meal.

Phenylethlamine HCL is a salt of phenylethylamine. It is a crystalline solid and is formed by treating phenylethylamine with HCl. Its IUPAC name is 2 phenylethylamine HCl. The scientific name elucidates its chemical structure. It is an aromatic compound meaning that it has a basic benzene ring. It further has a two carbon chain attached at position 2 of the ring and the chain terminates in an amino group. It occurs naturally in some foods like chocolates but the food item might get metabolized too quickly sometimes for it to have a significant effect on the body. This substance has quite profound effects on the level of dopamine in the central nervous system, provided it passes the blood brain barrier. It increases dopamine level and at the same time inhibits dopamine transmitters resulting in a buildup of dopamine in the brain. While excessive levels of dopamine in the CNS are not healthy, the neurotransmitter does regulate cognition, mood, voluntary movement and other brain functions.

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.

Vitamin B12 is required for the normal functioning and development of the nervous system, blood cells and brain. It’s a water soluble vitamin which is used to elevate mood, improve energy levels and concentration, to boost immune system and in sleeping disorders. Severe deficiency of Vitamin B12 can lead to pernicious anemia. It is also used for lowering high homocysteine levels which may contribute to heart disease, asthma, AIDS, to prevent cervical and other cancers, memory loss, osteoporosis, allergies and skin infections. It also helps to prevent atherosclerosis, multiple sclerosis, and kidney and gum disease. Vitamin B12 is added in almost all multi-vitamin B complex supplements. Deficiency of Vitamin B12 in infants can lead to megaloblastic anemia, delayed developments and movement disorders. Studies have proved that when used in combination with folic acid, it can prevent heart diseases.

Vitamin B3 is also known as Niacin or nicotinic acid. It helps in the conversion of carbohydrates into glucose that serves as fuel for energy. It also helps the body in metabolizing fats and proteins. Niacin also helps in the production of hormones necessary for the body to function properly. It is also effective in improving the circulation in the body. It lowers cholesterol, triglycerides and blood sugar level. It also helps in the treatment of coronary artery disease. It also helps in regulating the blood sugar level. Niacin also helps prevent the Pellagra disease, which causes digestive problems, diarrhea, dermatitis, hyper-pigmentation, amnesia, dementia, delirium, and even death. Niacin also helps prevent Alzheimer’s disease, diabetes, and is also effective in treating acne.

Vitamin B5, also called Pantothenic acid, which is a water-soluble vitamin required by the human body. Vitamin B5 is needed to form coenzyme-A (CoA), and is vital in the metabolism and synthesis of carbohydrates, proteins, and fats.

Vitamin B6- There are three traditionally considered forms of vitamin B6: pyridoxal (PL), pyridoxine (PN), pyridoxamine (PM). The phosphate ester (PLP) has a leading role in metabolism of human body. It is obtained from the diet since humans cannot manufacture it. PLP is crucial in over 100 enzymes that enable important chemical reactions in the human body. In the brain, the manufacture of neurotransmitters like serotonin from tryptophan is made possible by PLP. PLP is also a coenzyme in the production of the iron coating component of hemoglobin called heme. Signs of vitamin B6 deficiency include irritability, depression and confusion, inflammation of the tongue, sores or ulcers of the mouth and the skin at the corner of the mouth.