5-HTP is short for 5-Hydroxytryptophan, which is an amino acid. As a transitional component in tryptophan metabolism, 5-HTP is also a compound which in the metabolic pathway precedes the monoamine neurotransmitter serotonin. As a dietary supplement, 5-HTP is suggested for use as an antidepressant, sleeping aid, but also as an appetite suppressant. Vitamin B6 helps 5-HTP decarboxylate into serotonin, with assistance of a lyase enzyme, namely the aromatic L amino acid decarboxylase. The theory is that 5-HTP, when ingested as a supplement, leads to increased serotonin production. While mainly being used as an appetite suppressant in the body building community, it also improves cognitive abilities, but also endurance and stamina. While there are some concerns in use of 5-HTP and MAO inhibitors in combination, sensitive users report only positive effects, that is why it was included in System-Six.

Betaine HCL, or HCL for short is a non-essential nutrient source of hydrochloric acid, a chemical found naturally in the stomach (stomach acid) that helps digest food by breaking up fats and proteins. Betaine Hcl is needed for adequate absorption of protein, calcium, vitamin B12 and iron.

Cayenne- Most of us are aware of the wonders of the hot cayenne, which belongs to the family of capsicum. This herb is mainly used for culinary and health purpose. As compared to black pepper and chilies, it contains less irritating properties. Cayenne when taken naturally works as a natural stimulant and is beneficial for pancreas, kidney and spleen. Cayenne can be taken in herbal tea form, as a natural energy booster or as a capsule to cure yellow fever. Since cayenne contains antiseptic properties it is an effective remedy for sore throats and is used as a gargle. It aids digestion and stimulates saliva and stomach secretion. It also prevents heart attack, reduces cholesterol, allows proper absorption of vitamins, improves blood circulation and effectively clears the sinuses. In the past it was used as a cure for typhoid fever, diphtheria, pleurisy and pneumonia.

Choline, sometimes called Choline Bitartrate, is an essential nutrient involved in many bodily actions such as the structure and function of cells and metabolic functions.

Chromium Picolinate - The popular nutritional supplement, which has been invented to treat chromium deficiency, is also a popular weight loss and muscle growth product. Due to the chromium role it plays in sugar and lipid metabolism in humans, it has been deemed helpful as a supplement, in particular with the body building communities. The argument is that chromium picolinate improves the uptake of glucose by enhancing the effect insulin has in the body, providing better blood circulation. Bad dietary habits, in particular in the United States, have lead to the population verging on the brim of chromium deficiency. Body Building aficionados really require a wholly balanced diet, which in turn requires adequate amounts of chromium be present in the metabolism, even more so if the individual is practicing a serious exercise program.

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.

Garcinia Cambogia is helpful for weight loss as it suppresses accumulation of body fats. It promotes fat oxidation, increases serotonin release and its availability in brain, normalizes lipid profiles and reduces serum leptin levels in overweight people. Garcinia cambogia extract improves mucosal defensive mechanisms in the stomach and, so, is a good protective agent against gastric ulcers. It reduces both the volume and acidity of gastric juice. It acts as an appetite suppressant and also enhances metabolism. Garcinia cambogia can be helpful for people who attempt to have a low carb diet. It helps improve energy levels and strengthen the immune system. Garcinia cambogia extract can increase mucosal defense means in stomach, thus helping with gastric ulcers. It can decrease stomach acidity, and increase defensive properties on gastric juices.

Ginger Root has been used as herbal medicine in India, Asia, and Arab countries for a long time. People in China have been using this knotted, thick, underground stem or rhizome of the plant Zingiber officinale to improve digestion for over two thousand years. Ginger was also found effective in the treatment of health conditions such as heart problems, arthritis, colic, and diarrhea. Ginger is also a popular cooking spice in different cuisines. The magic herb can also help a great deal in pregnancy, motion sickness, and cancer chemotherapy since it aids in preventing or treating nausea and vomiting associated with it. Many women consume ginger to reduce the pain during menstrual periods. Ginger is also used to reduce inflammation and combat inflammation-related problems such as arthritis and ulcerative colitis. You may buy fresh ginger root or go for other variations like ginger extracts, capsules, and oils.

Gotu Kola is one of the many common names given to the herbaceous annual plant called Centella asaitica. It is mainly found in countries like India, Sri lanka, Northern Australia, Malaysia, Iran, Indonesia, Melanesia and a few more on the Asian continent. This plant is used as a herb in traditional Chinese medicine and Ayurvedic medicine as well. It has slender stems that interconnect one plant to another. The leaves of this plant are long stalked and green in color. It has reniform leaves with rounded apices and is smooth in texture with palmately netted veins. The rootstocks which grows vertically down has rhizomes on it. Their color is creamish and are often covered with root hairs. The plant which is harvested manually matures in about three months, including the roots.

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

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

Inositol is a nutrient that occurs naturally in various forms. The most common form is myo-inositol. Inositol can be produced inside the human body from glucose and it is considered to be very effective. It is direct precursor of phospholipids, a major cellular membrane component. This nutrient helps in maintenance of electrical energy along with the transfer of nutrients across the cell membranes. Inositol also acts as a lipotropic that helps in the changing of fat into useful products. Apart from establishing healthy membranes, Inositol also facilitates the nerve impulses. Experts recommend a low dosage of 500mg capsule of Inositol. You can take several grams at one time only if you have previously tried a lesser amount. Inositol supplements can be beneficial for people with a bipolar disorder, impotence, lung cancer, depression or a panic disorder.

L-Carnitine is chemically similar to an amino acid, L-Carnitine is responsible for the metabolism of fat in the body. It transports fatty acids into the cell’s metabolic furnace known as mitochondria. Synthesized in the liver and kidney, L-Carnitine helps the body use fat for energy. It acts as an aid in releasing tryglycerides and stored body fat into the bloodstream. With an adequate intake of L-Carnitine, you can improve the contraction of muscles, function of the heart and balance of protein in the body. As compared to the synthetic fat burning supplements that cause insomnia and addiction, L-Carnitine is a natural component which brings fat to metabolizing stations so that it can burn and produce energy. In case you have carnitine deficiency, you can have 1000mg of tartrate per day which is considered to be an effective form of carnitine.

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, exists in two main forms, niacin and niacinamide. The niacin form produces a flushing and itching of the skin when taken at higher dosages and this feeling is only temporary.

Pantothenic Acid, also called vitamin B5, which is a water-soluble vitamin required by the human body. Pantothenic acid is needed to form coenzyme-A (CoA), and is vital in the metabolism and synthesis of carbohydrates, proteins, and fats.

Riboflavin, also called Vitamin B2, is naturally manufactured by the body. Riboflavin is needed for the proper use of oxygen and amino acids, carbohydrates and fatty acids. Riboflavin is also utilized by Vitamin B6 in the body and is used to manufacture niacin. Riboflavin is especially needed when eating large amounts of protein.

Selenium , an essential mineral that is toxic at high dosages. Selenium plays an important function in the antioxidant enzymes that protect cells against free radicals. Selenium also promotes proper thyroid hormone metabolism.

Spirulina- The tiny blue-green aquatic plant Spirulina (Arthrospira Plantensis) is regarded as one of the most powerful and well-balanced source of nutrition worldwide. No wonder it is called as super food since it contains at least sixty percent of all-vegetable protein, phytonutrients like fatty acid GLA, vitamins, glycolipids, polysaccharides, and sulfolipids. Due to the absence of cellulose in its cell walls, the nutrients in Spirulina are very well assimilated. As such, Spirulina is a low fat, cholesterol free source of protein that is low in calories too. You can depend on this wonder herb to fight diabetes, anaemia, and effects of environmental pollution. In addition, Spirulina is also useful in combating "free radicals" that can cause a host of health ailments such as arthritis, cataracts, and cancer.