Black Pepper- The native land of the well-known spice black pepper is India. Peas of black pepper are dried up unripe fruits of the evergreen liana growing exclusively in tropics. Despite of old acquaintance of Europeans with this spice, its chemical compound is studied insufficiently. According to data of doctors of the ancient East, black pepper increases digesting force of a stomach and the energy of nervous system, strengthens muscles, and is matchless spice on its effect. The other properties of this foodstuff have provided to it the glory of a medicinal product since a long time. When people intake black pepper warms digestive organs, improves the appetite, treats a sour eructation, dilutes dense blood at melancholiacs and phlegmatic persons and has a beneficial effect over the intestines.

Caffeine, a central nervous system stimulant used in Xenadrine EFX as an aid to stay awake, for mental alertness due to fatigue or, in combination with other ingredients for pain relief, and as a power and energy accelerate. Caffeine is available alone as a non-prescription drug over the counter medication, in combination with other non-prescription drugs, and in prescription drug combinations for relief of pain and headache. Like Ephedra, caffeine acts to increase mental alertness while providing additional energy for weight loss and exercise training. Caffeine is more than a stimulant as it goes deep into muscles to provide long lasting power while delaying the onset of muscle fatigue. Also great before working out, caffeine fights fatigue and helps you get ready for your workout. For dieters feeling sluggish that need just a little something extra to get them through the day, caffeine is the obvious no-calorie stimulant solution. Many products containing caffeine anhydrous contain as much caffeine as one or two cups of coffee. It is recommended to limit the use of caffeine containing medications, foods, or beverages while taking caffeine supplements as excess caffeine intake may cause nervousness, irritability, sleeplessness and occasional rapid heart beat.

Cocoa Seed Extract, which is standardized for caffeine, tyramine, phenylethylamine and theobromine. Cocoa seed extract is thought to possibly help speed up the metabolism and provide feelings of fullness.

Ginger Root- Zingiber officinale is the actual plant that grows an underground stem, commonly called ginger root and is a very popular spice, which also has medicinal properties. Main components of the ginger root are a mixture of volatile oils, zingerone, shogaols and gingerols, which have been found to display analgesic, antipyretic, antibacterial and sedative properties. Ginger also contains a fragrant essential oil, essentially consisting of sesquiterpenoids. As a spice, it is an important part of the Indian and Chinese cuisine, in the Western World it is known as the main ingredient in cookies, such as the gingerbread man, but also in the popular beverage ginger ale. Traditionally used as a treatment for nausea, diarrhea, motion sickness, general stomach settler, but also as a cold remedy, just recently properties for treatment of osteoarthritis and diabetes have been discovered.

Green Tea Extract increases energy expenditure and affects fat oxidation, which therefore promotes weight loss by increasing the body's metabolism.

Guarana, a stimulant derived from the seeds of the Brazilian Guarana plant. Guarana is used to increase alertness and help fight fatigue. It contains caffeine and is usually associated with an "energy crash" several hours after taking a large dose.

L-Theanine , which is believed to relax the body while consuming high amounts of caffeine, yet stimulate alpha wave brain activity to maintain mental alertness.

L-Tyrosine is a common amino acid and a para-isomer of tyrosine. It is deemed organic because of the carbon atom present and it is nonessential to survival, but works as a building block of protein. It is also viewed as a precursor of dopamine, which has several effects, like offsetting fatigue, mental and physical, as well as increasing the impression of well being. When the amino acid phenylalanine is broken down, L-Tyrosine can be won completely naturally. Besides being a precursor of the aforementioned neurotransmitter dopamine, L-Tyrosine is also deemed a precursor to some adrenal hormones, namely epinephrine and norepinephrine. In body building circles this supplement is popular to offset fatigue after a hard training or competition, but also to raise mental alertness while working out.

Long Pepper, which contains Capsaicin, a thermogenic substance. A thermogenic raises your core temperature, which allows you to burn more calories from food, particularly when eating a high fat meal.

Magnesium is another mineral which is deemed essential for all biological life. As an essential part of basic nucleic acid, magnesium ions, together with phosphate ions, are also required for over 300 catalytic reactions of enzymes. Any enzymes synthesizing or utilizing adenosine triphosphate require a magnesium ion. Incredulously enough, magnesium deficiency is the most widespread deficiency, affecting a third of the population in the United States only, with third world countries surpassing the count easily. Being also essential, together with calcium and phosphorus, in the skeletal structure, magnesium deficiency is viewed as a main factor in ailments such as osteoporosis. Naturally available through cereals, green leafy vegetables, nuts, spices, tea, cocoa and coffee, magnesium is available as a supplement in magnesium oxide and magnesium citrate form, whereby the latter is viewed as more bioavailable.

Norambrolide, or fermented salvia sclarea leaf extract. Norambrolide is thought to increase cAMP (cyclic adenosine monophosphate) levels in the body through the stimulation of the "adenylate cyclase" (AC) enzyme. This stimulation is believed to help activate increased fat burning.

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.

Some Unknown Ingredients, which is a common practice for many supplement manufacturers. They use ineffective common ingredients and trademark their name for them to disguse the actual low quality ingredient contained.

Vitamin B6 is important to a healthy human diet and is equally important in various metabolic and synthesis functions as well as gene expression.

Vitamin C is an obvious essential nutrient and a deficiency of this will cause scurvy. It is also an antioxidant and acts as an electron donor for eight different enzymes.

Yerba Matte- The plant of the yerba maté, as yerba matte is actually called, is a small tree or a shrub which can grow up to a size of fifteen meters. The leaves and twigs have traditionally been used to brew a tea like concoction, which is still a very popular social beverage in South America. Yerba maté contains alcaloids that are very similar to caffeine, commonly referred to as xanthines, but also elements like manganese, magnesium and potassium. The main difference between yerba maté and coffee, for instance, is the effect it has on muscle tissue, where it appears to relax smooth muscle tissue, but stimulate heart tissue and that is why it is used in Xenadrine EFX . In other studies, yerba maté was found to work as a monoamine oxidase inhibitor, thereby professing antidepressant qualities.