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 is the most widely used legal stimulant of the central nervous system and is also used in Xenadrine EFX , with characteristics that have been described as restoration of alertness and removing from drowsiness. Coffee, Tea, many soft drinks and energy drinks as well as nutrition supplements have this ingredient, which is a psychoactive substance, a xanthine alkaloid that can act as a adenosine receptor antagonist, as well as a phosphodiesterase inhibitor. Although regular use of caffeine seems to have nootropic effects, enhancing cognitive abilities, it also is known to provide long term effects on the nervous and cardiovascular system, like in one study it was proven that people with normal to low blood pressure have the possibility of developing a heart disease significantly reduced, as well as the chance of getting the Parkinson’s disease.

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 is a dietary supplement that is not only used as a spice but has had a positive effect on some types of arthritis and raynauds disease.

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

Guarana is not only a dietary supplement but also an energy booster as well as it has a high concentration of caffeine.

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 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.

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, which is a mineral used by the body to help maintain muscles, bones, and nerves. Magnesium is also needed for energy metabolism and protein synthesis.

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, it is a water-soluble member of the vitamin B complex. Pantothenic acid is involved in adrenal gland function and is required to fight stress.

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 soluble in water and is essential for good health. Our nervous system is dependent on this vitamin to function properly. It keeps the thymus, lymph nodes and the spleen that make white blood cells healthy, through cellular growth and protein metabolism. A deficiency in this vitamin can lead to a weakened ability to fight infections and will weaken the immune system. Vitamin B6 helps in the formation of Hemoglobin which increases the oxygen that is carried to the tissues. A deficiency can cause a type of anemia. Vitamin B6 helps to convert carbohydrates and other nutrients into glucose which maintains the sugar levels in our blood stream. Vitamin B6 is available in meat, fish, fortified cereals, poultry, some fruits and vegetables.

Vitamin C, also known as Ascorbic (a-SKOR-bik) acid, is needed for many functions in the body, including helping the body use carbohydrates, protein, and fats. Vitamin C is found in most citrus fruits and green vegetables and is a strong antioxidant.

Yerba Matte- Described as an ancient drink of friendship derived from a small shrub. It is sometimes spelled as yerba mate and people drink it in order to gain energy producing properties without consuming caffeine as they would in normal tea or coffee. People believe that yerba mate is a appetite suppressant, clears the mind as well as relieving allergies, improving sleep patterns and lifting the mood, that is why it is used in Xenadrine EFX . It is advertised as an aid to weight loss, a fortifier of the immune system, a colon cleanser and even as a means of extending life. It is prepared as an infusion, with twigs and leaves immersed in boiling water in order to produce a tisane. Traditionally it is made in a vessel which is then shared among friends.