Caffeine is a powerful and very common alkaloid supplement used in CytoSport Muscle Milk Refuel primarily to increase the body’s ability to lose weight quickly, boost energy and stimulate the brain into more activity with better clarity. It also fuels the body’s metabolism for increased fat burning qualities. This allows users to have more stamina for exercise and more focus for weight loss initiatives. Caffeine anhydrous is found naturally in many different beans and plants and works successfully as a stimulating supplement for those needing increased energy, focus, and alertness. When taken as a supplement for health or weight loss reasons, caffeine anhydrous should not be combined with other traditional forms of caffeine, such as soft drinks, energy drinks, coffee, or tea, because the supplement form is concentrated and powerful in itself.

Folate belongs to the B complex group, which is vital for metabolic processes in the body. It decreases levels of amino acid homocysteine in the body, ensuring protection against heart ailments. It also reduces the risk of neural tube and other birth defects like cleft lip and palate, and various congenital heart defects. It provides protection against different forms of cancer and heart disease. It is beneficial in treatment of megaloblastic anemia. It also works as a coenzyme in transfer of formyl and hydroxymethyl groups in various biological systems, and in carbon metabolism. It assists the body in getting rid of homocysteine, a blood toxin affecting heart muscle and making cholesterol deposit in heart muscle. It also prevents stroke and heart attack.

Glucuronolactone is also used as a detoxicant but is actually a natural chemical produced by glucose metabolism in the human liver.

Green Tea Extract is of immense use to treat body ache, headaches and poor digestion. The green tea extract contains polyphenols to high levels and is an opulent source of antioxidant. It has the power of fighting free radicals more than vitamin E. the polyphenols present in green tea extract protect against respiratory and digestive infections. It blocks the carcinogens actions that promotes cancer and reduces the cholesterol levels. Green tea extract helps in metabolizing fat. The dieters can feel the weight loss without side effects and jitters. The green tea extract decreases the heart disease risk and also helps in preventing liver failure. The benefits of green tea extract are many, but as it contains caffeine, medical experts should be consulted prior to using it. Green tea extract also defends dental plaque. Green tea extracts prevents even liver transplant failure, but pregnant women should take green tea only after doctor consultation.

L-Isoleucine- The second of three branched chain amino acids it is important in blood sugar regulation and producing hemoglobin. After exercise, it is responsible for muscle recovery and important in the metabolism to produce energy.

L-Leucine, is an alpha amino acid which is extremely essential in the everyday functioning of the body. Leucine is also an essential amino acid, meaning that the human body cannot synthesize it and it has to be ingested. And is found in brown rice, nuts and whole wheat bread products. L-Leucine as an essential amino acid increases the synthesis of muscle protein and thus slows the degradation of muscle tissue. L-Leucine is also utilised in the liver, adipose tissue and muscle tissue. Simply put, L-Leucine supplies the body with energy when engaging in an athletic activity, it preserves the glucose stored in muscle tissue and it works to heal bone, skin and muscle tissue. It is also a ‘limiting nutrient’ thus it helps the body make use of the proteins ingested. Leucine deficiency can lead to depression, muscle weakness, low energy etc.

L-Valine is the third branched chain amino acid and is required for muscle metabolism, repairs and regenerates tissue, and maintains the body's nitrogen level. It also is used as a muscle energy source and preserves the use of glucose.

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.

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.

Sodium is part of the extracellular fluid of many multicellular creatures, not least mankind. It is needed for instance in nerve conduction and to balance the acid levels in the body. It is necessary for the functioning of organs such as the liver, intestine and kidneys in their work of ridding the body of toxins However there is an optimum intake. Above this there are problems such as a rise in the blood pressure. Also an excess of salt in the diet will draw fluid out of the cells by the process of osmosis. On the other hand a lack of sodium will lead to too much water in the body the brains cells will actually be flooded.

Taurine is found in high levels in the human heart and skeletal muscles. It is an amino sulfonic acid which is also present in the central nervous system and white blood cells. The human body produces this essential acid naturally so that it helps in absorbing vitamins and digesting fats. This acid reduces the problem of high blood pressure in adults and it is also being used for treating bipolar depression. Popularly known as a health supplement, Taurine has always been used in various health products. Bodybuilders are recommended to take Taurine along with creatine as it can prevent muscle soreness and fatigue. This amino acid is listed as one of the main supplemental ingredients in various energy drinks. For instance, drinks such as Rockstar and Monster, contain approximately 2000 mg of Taurine.

Vitamin B12 is a water soluble vitamin and is one of the 8 B vitamins. It has the chemical formula C63H88CoN14O14P. In the absence of Vitamin B12, the brain and the nervous system will not be able to function properly. It also plays a key role in the formation of blood. Vitamin B12 was discovered from its relation to the ailment pernicious anemia. Plants and animals are not capable of synthesizing VitaminB12; the enzymes required for this purpose are found only in bacteria. Vitamin B12 deficiency in human beings is due to its complex human physiology. It is available singly or in combination with other supplements.

Vitamin B6 is a water-soluble member of the vitamin B complex. It exists in thre forms and often occurs in nature as a mixture of these three forms. Vitamin B6 is involved in protein, fat, and sugar metabolism.