Black 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.

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- Ginger is a very popular spice and has been used for culinary purposes for ages. Besides the widespread use in the cuisine of many nations, several traditional medicines, including the Indian and Chinese medicinal practices, have used this Zingiber officinale, as the Latin name goes, for its pain relieving, anti allergenic and anti inflammatory activities. Further uses have been noted for treatment of various ailments of the digestive tract, such as diarrhea and nausea, but also as general stomach settlers. While the use of the ginger root extract has been used in ginger beer and ginger ale beverages, the use as dietary supplement or component in nutritional supplement concoctions is relatively recent. The volatile oils of the ginger root extract have been noted for the antibacterial, analgesic, sedative and antipyretic properties.

Green Tea Extract- By increasing the body's metabolism, it is widely believed that green tea extract largely aids in weight loss.

Guarana- The active constituent of guarana is caffeine, which means that it should not be used alongside ephedrine as either a dietary aid or in order to stimulate performance. The American Food and Drug Administration has not tested its effectiveness or its purity as they do not class it as a drug. Guarana has many other names including Brazilian cocoa and may be a constituent of non alcoholic drinks imported from South America. Because of possible adverse reactions it is not recommended for anyone with a heart condition or who has kidney disease, high blood pressure or who suffers from anxiety.

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 proteinogenic polar amino acid, deemed not essential because it can be synthesized by the human body. As a member of the amino acid group that is being used by cells to build proteins, this building block derived its name from the Greek word tyros, which means cheese, because it was discovered in the cheese protein casein. L-Tyrosine can be synthesized from phenylalanine and can be found in foods high on protein, like soy products, poultry, cheese, bananas, dairy products and several seeds, including the sesame seeds. The unique phenol functionality and the occurrence in proteins that belong to the signal transduction process, make this amino acid different. Tyrosine can be converted by tyrosine hydroxylase enzyme into levodopa, a psychoactive drug that is used, among other uses, for clinical treatment of Parkinson’s disease. It is also involved in the synthesis of dopamine, norepinephrine and epinephrine.

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 essential to all living cells and is a vital component to a healthy diet. Calcium absorption for the body largely depends on magnesium to facilitate this.

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 is actually a part of the Vitamin B complex, namely Vitamin B5 and is deemed an essential nutrient. It has a critical function in the synthesis and metabolism of core nutrients, such as fats, proteins and carbohydrates, and it forms the coenzyme – A, also called CoA, most notable for the role in oxidation and synthesis of fatty acids and pyruvate. The Greek origin of the name Pantothenic Acid already states that this Vitamin is found nearly everywhere, with prominent amounts in eggs, meat, legumes and whole grain cereals. In health and fitness circles the dietary supplement is very popular for its energy producing role, but also for the ATP process and for the maintenance of cholesterol and triglycerides levels in the body.

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

Vitamin C- Perhaps the most popular vitamin, L-ascorbic acid is viewed as an essential nutrient and is required to synthesize collagen in humans. The L-enantiomer of ascorbic acid, or Vitamin C for short, is the famous ingredient of oranges and other citrus fruits. It has been said that a glass of pure squeezed orange juice provides the daily requirement of Vitamin C. While the antioxidant function is deemed important, other biosynthetic functions are of vital significance. It provides an electron for eight different enzymes, besides the aforementioned synthesis of collagen; it aids the synthesis of carnitine and neurotransmitters, synthesis and catabolism of tyrosine and the metabolism of microsome. The additional function as a reducing agent, keeping iron and copper at bay is an additional trait.

Yerba Matte, actually yerba maté, as it is called in Brazil, or Ilex paraguariensis in Latin, is a small tree or a shrub which can grow to fifteen meters. It is found naturally in South America, mainly in south of Brazil, Argentina, Paraguay, Uruguay and Chile. Foliage is evergreen, and the flowers are rather small, additionally there is a smallish fruit of red color. A tea like brewing in warm water, not boiling, is a popular drink in the native area, similar social gathering is common, akin to tea time practice in the United Kingdom. Yerba matte has several xanthines alkaloids which are related to caffeine, but although chemically identical to caffeine the mate xanthine cocktail provides different results, for instance it relaxes smooth muscle tissue and stimulates heart tissue. Yerba Matte is a potent ingredient in Xenadrine EFX .