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.

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.

Evodia Rutaecarpa is largely believed to promote weight loss and burn body fat. It raises the body's temperature and stops vomiting and fights off colds.

Glucuronolactone is produced in the human body by the metabolism of glucose in the liver. This naturally occurring chemical is an essential structural element of all connective tissues. Also found in plant gums, glucuronolactone speeds up the removal of harmful exogenic as well as endogenic substances to detoxify the body. This is used as an important ingredient in many popular energy drinks as it not only helps in fighting stress but also gives a sense of well being. MultiVit Rx can be a very healthy option if you want to take Glucuronolactone for enhancing your energy level. This metabolite has been clinically approved for reducing sleepiness. It can be extremely beneficial in enhancing memory, concentration and mental performance of a healthy individual. Deficiency of Glucuronolactone is very rare.

L-Taurine , which contains cysteine and methoinine is an essential amino acid. It acts as a diuretic by maintaining the level of magnesium and potassium in our cells while purging sodium. It improves the functioning of kidney and gets rid of fluid accumulation and swelling and thus keeps our body away from toxicity. It maintains a good balance of calcium in our body and strenghtens the heart muscles too. L-Taurine is also used in the treatment of progressive eye conditions, hypertension, memory loss, cystic fibrosis and in atherosclerosis. It is often mixed in energy drinks because while working out the level of L-taurine drops in the skeletan muscle, L-taurine supplements lowers the level of exhaustion and improves endurance. Besides being found in meat and egg yolks it is abundantly found in shellfish.

L-Tyrosine is an amino acid that is nonessential. It is synthesized from the body from phenylalanine which is also an amino acid. L-Tyrosine has the power to have an effect on the neurotransmitters and this affects various health conditions including depression, mood disorders and Parkinson’s disease. Many such studies have proved that L-Tyrosine helps people having depression. It acts as a precursor and eases the effects of psychosocial, environmental and physical stress. L-Tyrosine turns into melanin by the skin cells and the dark pigment prevents the ultraviolet light from affecting. The thyroid hormones playing a significant role in the process of the body also contain tyrosine. L-Tyrosine is commonly found in all the dairy products, fish, oats, wheat, meat and also in all other protein containing foods. This is also found to be beneficial for people trying to withdraw alcohol. L-Tyrosine has not exhibited severe side effects, yet taking it should be recommended by doctors.

Niacin, also called Vitamin B3, is a water-soluble vitamin needed for the conversion of food into energy so that it may be used by the body. Niacin also helps metabolize protein, sugar and fat.

Octopamine is related to noradrenaline. Octopamine was discovered by Vittorio Erspamer, an Italian scientist in 1948. Octopamine has a significant role in mollusks and is the central nervous system in snail. Octopamine also has a vital role in memory and learning in the fruit fly and honey bee. Octopamine is also useful for the firefly in releasing the light production. Octopamine mobilizes releasing fat in mammals and this has developed into promotion as a slimming aid on the internet. However, there is no apparent evidence about Octopamine facilitating weight loss. Octopamine also significantly increases the blood pressure in combination with stimulants such as weight loss supplements. This is extensively used in energy demanding insects such as spiders, lobsters, crabs and crayfish as their behaviors also include egg-laying, jumping and flying. Among vertebrates, Octopamine substitutes norepinephrine and as well exhibits common side effects. Octopamine is sited in the locust jump such that it modulates the muscle activity allowing the leg muscles to contract effectively.

Pantothenic Acid, commonly called vitamin B5, is water soluble and is needed by every cell in the body to maintain good health. It helps in breaking down carbohydrates, fats and proteins to provide the body with energy. It assists in the production of red blood cells and hormones and ensures a healthy pregnancy. It is also known to lower triglyceride and cholesterol levels in the body. It helps in reducing stress and treating people with rheumatoid arthritis. Pantothenic acid is found in small quantities in almost all foods but abundantly in meats, fish, poultry, avocados, peas, broccoli and whole grains. A deficiency which is rare, leads to leg cramps, gastrointestinal problems, anemia, insomnia, depression, a burning sensation in the limbs and a weakened immune system.

Rhodiola , popularly known as the “golden root” in Russia has been considered an effective treatment for stress and depression. This adaptogenic herb enhances resistance without changing the normal biological function of the body. Rhodiola is found in Asia and Europe’s artic areas at high altitudes. Scandinavian and Russian countries have been using its roots to cure poor attention span and fatigue for centuries. Rhodiola rosea is also effective in improving mood by enhancing mental and physical performance. There are several compounds in Rhodiola rosea which makes it so effective. It includes rosavins along with active components like tyrosol and rhodioloside. This supplement is available in the form of tablet or capsules that can be taken once or twice on a daily basis. You can also increase the dosage if needed.

Salvia Sclarea, also known as clary or clary sage, is basically a biennial herb. It is a herb native throughout Europe and central and east Asia. Though, it was historically found in France, Switzerland, Italy and Syria. It reaches a height of one meter at the time of maturity. It has wooly texture leaves. The flowers on this herb appear in clusters on its stem and are often of the color pink, white or pale purple. Salvia sclarea is known to have an odor that appeals to some while at the same time are very unpleasant for the others. Majority of the salvia sclarea cultivation is done for the perfume industry in England, France and southern Russia. A lot specialty stores and scent shops sell the distilled essential oil obtained from salvia sclarea.

Thiamine, also called Vitamin B1 or Thiamin, is needed to help the body utilize energy from proteins, fats and carbohydrates. Thiamine is commonly found in breads and cereals. Thiamine is water-soluble and is concentrated in muscle tissue as it passes thru the body.

Vinpocetine- The lesser periwinkle plant named Vinca Minore consists of Vincamine, which is found in its leaves and Vinpocetine is derived from this natural substance found in the plant. In countries such as Japan and Europe, Vinpocetine is a prescribed medicine. It is popularly available in the online stores and countries such as Canada and the US as an effective supplement for diet. Vinpocetine is a great medicine in order to protect oneself from brain dementia. It has also been found to help treat Alzheimer’s disease. However, there is no strong recent evidence to prove its effect on the treatment of Alzheimer’s disease. Overall, it’s great to boost the brain. However, it has certain side effects such as anxiety, insomnia, indigestion, dry mouth, headache and many more.

Vitamin B12 is a water soluble vitamin and is one of the 8 B vitamins. It has the chemical formula C63H88CoN14O14P. In the absence of Vitamin B12, the brain and the nervous system will not be able to function properly. It also plays a key role in the formation of blood. Vitamin B12 was discovered from its relation to the ailment pernicious anemia. Plants and animals are not capable of synthesizing VitaminB12; the enzymes required for this purpose are found only in bacteria. Vitamin B12 deficiency in human beings is due to its complex human physiology. It is available singly or in combination with other supplements.

Vitamin B6 allows the metabolism of amino acids, carbohydrates, as well as lipids to take place, also aids in keeping skin vibrant.

Yohimbine HCL raises body temperatures. it increases the flow of blood to the genital area and increases the sex drive in men but also women have reported similar effects.