Acetyl- L-Tyrosine occurs naturally in the body. This amino acid plays a pivotal role in assisting the body in developing chemicals such as dopamine. Without this, the body can have adverse effects culminating in a sense of sadness, depression, anxiety and an inability to concentrate. Most over the counter supplements that are intended to help boost the body’s naturally occurring processes also include sorbitol, stearic acid, magnesium stearate, modified cellulose gum and colloidal silicon dioxide. This supplement is ideal for vegetarian and vegan users as it contains no animal products. There may be adverse interactions with MAO inhibitor drugs and this should not be used if pregnant or nursing.

Bioperine is derived from the extract of Piper nigrum L (black pepper) or Piper longum L (long pepper). Bioperine activates the thermogenesis process that generates energy at the cellular level. This process also helps in burning of fats. It also increases the absorption of nutrients and vitamins. It ensures that the body benefits and is able to efficiently use the nutrients from the food. It also boosts the metabolism that makes it effective in weight loss and maintenance. Because of the boost in metabolism, it also provides the body an increased supply of energy. It also aids in the proper digestion.

Caffeine, a central nervous system stimulant used in Lean Stack 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.

Cayenne peppers are rich in vitamin A and C, calcium and other nutrients. They cure fever, colds and sore throats. They improve the digestive process. They protect the heart by strengthening arteries and regulating blood flow thus preventing heart attacks. External use reduces discomfort and swelling due to frostbite and joint pains by increasing blood flow to the area. Cayenne oil reduces toothaches effectively. Cayenne powder keeps hands and feet warm by improving blood circulation, when sprinkled into gloves or shoes. It is also known to reduce itching. A water-cayenne mixture helps to stop external bleeding. It reduces internal bleeding by even distribution of blood in the body. It also increases vigor and stamina. You must consult a physician before using cayenne for medicinal purposes.

Chromium Polynicotinate is a product associated with medical food. It is used as a nutritional support in diabetes related conditions. Chromium polynicotinate is said to be nothing but an assimilated form of chromium. It is said to be the most effective type of chromium. It is absorbed by the body in its biologically active form. It is also crucial to the process of synthesis of fats, protein and cholesterol. Chromium polynicotinate if taken in monitored dosage can help stabilize blood sugar levels. This proves beneficial for people suffering from diabetes as well as hypoglycemia. Its main property is to produce insulin. Therefore, it helps in the metabolism of glucose. This type of chromium polynicotinate helps in the production of anabolic effects which have no side effects. On the other hand, they help in keeping the fat cells away from the muscle cells.

CLA is the abbreviation for Conjugated linoleic acids. It belongs to the linoleic acid group. These acids are mainly found in dairy products and meat. Conjugated linoleic acids have been said to have antioxidant and anti-cancer properties. Research has been conducted on mice and rats to see whether these acids can help hinder the growth of tumors in mammary, colon and skin tissues. Studies are also being conducted on whether conjugated linoleic acids can help reduce abdominal fat. Although, some researchers are of the opinion that supplements containing CLA may have certain side effects. It is believed that these supplements when taken by over weight people might tend to increase the insulin resistance, thus resulting in high chances of developing diabetes. This is said to be one of the major side effects of CLA.

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.

Conjugated Linoleic Acid.

Dandelion is a valuable herb possessing culinary as well as medicinal uses. Dandelion is a variable perennial growing to nearly 12 inches. They are spatula like leaves and are toothy, shiny and hairless. The stems of dandelion have bright yellow flowers. These flowers are light sensitive and opens only in the morning. Dandelion is opulent with vitamins A, B, C and D. it also has minerals like potassium, iron and zinc. The leaves of dandelion enhance the flavor to sandwiches, salads and teas. The flowers of dandelion are used in making wines and the roots are found as coffee substitutes. Dandelion leaves and roots as per traditional medicines were used in curing liver problems. The dandelion decoctions were used by the Native Americans to treat skin problems, kidney disease, heartburn, stomach upset and swelling. The Chinese practitioners used dandelion to cure appendicitis, digestive disorders and breast problems. Dandelion roots are used as digestive aid, appetite stimulant and for gallbladder and liver function.

DMAE (Dimethylaminoethanol) is a supplement which acts as anti-oxidising agents. They are mostly consumed in order to increase the functioning of brain and also to keep up the health of skin. DMAE greatly works in some advantageous process such as enhancing the ability of learning, mood and mainly to increase the memory power. They keep the skin healthier by stabilising the membranes of lysosomes that you find in human skin and also repairs those skin cells which are damaged. It resists the impact of the ages which damages the healthier skin by blocking the activity of lipofucsin. There are of course some side effects caused by these supplements as well and hence it must be consumed with the advice of some physicians.

Folic Acid or Vitamin B9 is essential as it assists the formation of red blood cells in the body and genetic material within every cell. It helps in metabolism of proteins and prevention of anemia and is vital for cell growth and division. Folic acid is an important nutrient for pregnant women to prevent congenital malformation in the fetus. It reduces the risk of brain and spinal cord defects, heart defects, limb defects, urinary tract abnormalities and cleft palate in the fetus. It is highly beneficial if taken prior to and during the first month after conception. In men, folic acid reduces chromosomal defects in the sperm. Spinach, lettuce, peas, beans, sunflower seeds, asparagus, baker’s yeast, fortified cereal products and liver are rich in folic acid.

Garcinia Cambogia, which is used for the active ingredient, Hydrocitric Acid or HCA. It is extracted from the garcinia cambogia fruit, similar to an orange. It is commonly used as an appetite suppressant. Hydrocitric acid or HCA is a "lipogenesis inhibitor," which means that it slows down the production of fat from the metabolism of carbohydrates and proteins. This means that more calories are burned as energy and less are turned into stored fat. Studies on animals and humans have shown that HCA can suppress fat production and reduce appetite.

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.

Grape Skin Extract is extracted from the skin of grapes. Grape skin extracts, particularly red grape skin extracts, are becoming popular in medicine and nutritional supplements because some recent researches have indicated that polyphenolic extracts of red grape skin can prevent and inhibit angiogenesis, and decreases the basal motility of endothelial and cancerous cells because it has inhibitory effects on the vascular endothelial growth factor and the enzyme sphingosine- 1 - phosphate, thus preventing diseases related to angiogenesis deregulation. These diseases frequently include cancers and malignant brain tumors.

Grapefruit Extract, also known as citrus seed extract is a liquid that is derived from the seeds, pulp as well as the white membranes of grapefruit. Some scientists claim that grapefruit extract possesses antibacterial, antiviral and antifungal properties while others recommend it for the treatment of earache, throat infections etc. There are two ways in which grapefruit extract is prepared. One is the natural, self-made grapefruit extract which is made by grinding the seed and pulp and then mixing them with glycerine. The second method is the commercial way in which the seed, pulp, glycerine and synthetic preservatives are all blended together. Grapefruit extract is believed to have a lot of scope in the health food industry. However one has to be careful as grapefruit can have several interactions with certain drugs like warfarin.

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.

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.

Kola Nut has a euphoric and stimulating effect on the heart and central nervous system and produces a heightened state of euphoria and well-being.

L-Carnitine is yet another weight loss supplement that also is an antioxidant and has effects on male infertility, diabetes, and bone mass and fatty acid metabolism.

L-Tyrosine is an amino acid taken to enhance the functions of the thyroid gland. It provides essential supplements to the body for fighting serious ailments. L-Tyrosine is a natural cure mainly for hypothyroidism and many other illnesses including protection of skin from the UV rays and depression. People suffering from hypothyroidism lack tyrosine and therefore do not respond to iodine supplements. Iodine supplements are of no use without tyrosine. Using L-tyrosine replaces vital amino acids which people having hypothyroidism lack. It produces thyroid hormones namely, norepinephrine, dopamine and epinephrine. L-tyrosine must be used by those who have a family history of under active thyroids and by those who have not got benefits from dieting efforts. L-tyrosine is taken in doses of 500mg 2 to 3 times everyday. People having high blood pressure must be cautious while taking this supplement.

Magnesium Stearate is coommonly used as a filling agent in the manufacture of capsules and tablets, such as vitamins, the source of this ingredient is typically bovine. However, there is an increasing number of vegetarian options in which the product specifically indicates it contains magnesium stearate from vegetable sources.

Opumtia Ficus-indica is a species of cactus which has been domesnticated for a long time. It is a very important agricultural plant in economies throughout the arid and semiarid parts of the world. Opuntia ficus-indica is also known by other names. They are Indian fig opuntia or barbary fig. The main reason behind growing the opuntia ficus-indica is its fruits. The vegetable nopales are also used for various purposes. In the culinary world, it is often referred to as the prickly pear. The large, sweet fruits called tuna are the most commercially valuable use of the species of opuntia ficus-indica. Sicily, Spain, Mexico, Ethiopia, Egypt, Saudi Arabia, Brazil, Israel, Chile, Algeria, Morocco, Italy are some of the countries that cultivate the opuntia ficus-indica in significant quantity.

Pantothenic Acid also known as B5 is a natural, inexpensive and safe form of curing acne. It is free from all negative side effects. It is best suited for people with oily skin as it stops the overproduction of oil within our body. It converts the carbohydrates and fats into energy effectively when synthesized with other Vitamin B. Additionally it also helps your body produce red blood cells and metabolizes fats. It plays a significant role in reducing physical and mental stress because it works along with the stress hormone producing adrenal gland. Pantothenic acid is present in all kinds of food and therefore our body gets sufficient amount of it. As it is impossible for our body to become deficient in pantothenic acid, there is no recommended daily amount of it. Eggs, whole grains and milk contain panthothenic acid in large numbers.

Silica is silicon dioxide, a trace mineral found in bones, teeth, skin, eyes, glands and organs. It also helps keep skin elastic. Silica works with calcium to maintain bone strength.

Stearic Acid is a saturated fatty acid that occurs in many animal and vegetable fats and oils. Stearic acid is useful as an ingredient in making candles, soaps, plastics, oil pastels and cosmetics, and for softening rubber. Stearic acid is used to harden soaps, particularly those made with vegetable oil. Even though stearic acid is a saturated fat, studies have suggested that it has little effect on blood cholesterol levels, because such a high proportion is converted to oleic acid.

Vanadyl Sulfate, while nutritionally not deemed necessary, is a very common component of food supplements and body building products. This inorganic compound is believed to mimic to some extent the effects of insulin, which, among other things, controls the uptake of glucose and apparently vanadyl sulfate would thereby promote better energy delivery to the muscles. While most of the vanadyl sulfate currently being sold in nutritional supplements and drugs is won by extracting vanadium from petroleum residues, some providers profess other sources, such as eggs, radishes, oats, buckwheat and vegetable oil. While possible deployment of vanadyl sulfate as a treatment method for diabetes is still being researched, the body building community has embraced this supplement as an energy increasing, muscle toning aid towards a better workout.

Vitamin A is used for improving poor night vision, dry skin, and it can help acne. It is also a fat soluble vitamin. Too much vitamin A can cause side effects. An excess of vitamin A can actually make acne worse.

Vitamin B12, also known as cobalamin, which is naturally found in foods such as fish, milk and milk products, eggs, meat and poultry. Vitamin B12 is important for good health, necessary for the proper digestion and absorption of foods and for normal metabolism of carbohydrates, and fat. It helps maintain healthy nerve cells and red blood cells and is needed to make DNA. Vitamin B12 is bound to the protein in food. Hydrochloric acid in the stomach releases B12 from protein during digestion. Unlike other water-soluble nutrients, vitamin B12 is stored in the liver, kidney, and other body tissues. It can take several years before signs of the deficiency appear due to poor dietary intake. Vitamin B12 functions as a "methyl donor." A methyl donor is a compound that carries and donates methyl groups to other molecules, including cell membrane components and neurotransmitters. As a methyl donor vitamin B12 is involved in homocysteine metabolism and plays a critical role in proper energy metabolism, immune function, and nerve function. Therefore, vitamin B12 is clearly an added benefit for anyone wanting to lose weight, as without it, metabolism is not at its peak potential.

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

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.

Vitamin E is the name for a group of tocopherols and tocotrienols that are soluble in fat and display antioxidant properties. The most important vitamin out of this group is alpha tocopherol, which professes the highest bioavailability, and therefore, was the most studied Vitamin E. Found in such foods as nuts, seeds, milk, wheat germ and most vegetable oils, this Vitamin is said to be perhaps the most important antioxidant in human nourishment, although this trait is not deemed the imperative reason why Vitamin E is required to be in every diet. Most clinical studies which were supposed to crown Vitamin E as the prevention from prostate cancer or cardiovascular wonder supplement have been either inconclusive or were discontinued due to poor results. Vitamin E deficiency results in neurological and neuromuscular problems, but also in failure to absorb fat.

White Kidney Bean Extract- Phaseolus vulgaris, or the common bean, exists in many varieties. One of such varieties is a popular Italian version, Cannellini beans, in the United States labeled often as white kidney beans. While several healthy ingredients warrant a healthy application of these beans, in particular the body building community is using a white kidney bean extract as a nutritional supplement for weight loss purposes. While there is no magic behind the formula, the idea behind the lipogenic effect of the white kidney bean extract seems sound. Although many people seem to dispute this particular aspect, other nutrients, like thiamine, Vitamin B6, folic acid, selenium, potassium, iron, molybdenum, as well as the high levels of protein, starch and dietary fiber, make this product a body building priority.

White Willow Bark, or Salix alba, is a willow commonly found in Europe and adjacent parts of western and central Asia. The bark of the White Willow has been used for centuries against fevers and to ease pains and aches. Already Hippocrates wrote about the White Willow bark powder two thousand five hundred years ago. The active ingredient of the White Willow bark is called salicin, a relative to aspirin and chemical derivative of the salicylic acid. When ingested, salicin is converted to salicylic acid, a beta hydroxy acid. As a nutritional supplement, White Willow products are being propagated as weight loss additives, whereby the scientific community has yet to provide any corroboration to this allegation. Besides the well known anti inflammatory characteristics, any other uses have not been approved by the FDA.

Yerba Matte contains natural nutrients and antioxidants. It contains 11 polyphenol, which are a group of phytochemicals. Phytochemicals are effective antioxidants and are thought to show anti-cancer effects in mammal by making strong natural defenses of an organism and protecting it against cellular destruction. Yerba Matte leaves also have saponins, which are phytochemicals that help induce the immune system and assist the body in protection against ailment. They have important anti-inflammatory properties. Yerba Matte can also prevent oral cancer. Research has shown it contains 90 percent more nutrients, which boost metabolism, than green tea. Some of the vital antioxidant enzymes in the body are also stimulated by Yerba Matte.