Caffeine is a stimulant drug used for mental alertness and to accelerate energy and power. It is also used to delay muscle fatigue as it goes deep into the muscle tissues.

Citric Acid ~

Folic Acid, a water-soluble B vitamin that is necessary to form essential body proteins. Folic acid, sometimes called Folate also promotes the synthesis of hemoglobin in the body.

L-Glycine- Glycine is an organic compound and one of the 20 amino acids deemed as building blocks for proteins. This proteinogenic amino acid is not only the smallest but also the only amino acid of the group that is not chiral, which means there is no enantiomer of glycine. With the prominent exception of collagen, which thirty five percent are glycine, most proteins contain only small amounts of it. As a solid, glycine is sweet tasting, crystalline and has no color. Despite being non-essential, because it can be biosynthesized from the amino acid serine, glycine has several important physiological functions, besides being a precursor to proteins. It is a biosynthetic intermediate of purines and the D-Aminolevulinic acid and it is an inhibitory neurotransmitter found in the central nervous system.

L-Tyrosine, a non-essential amino acid that is used to build protein. It is a precursor dopamine, as well as a precursor to norepinephrine and epinephrine. The body makes L-Tyrosine from the amino acid phenylalanine. Since L-Tyrosine is a precursor of Dopamine, it may raise mental alertness, making it of great use in exercise programs.

N-Acetyl L-Cysteine or "NAC" is derived from simple amino acid cysteine and is of great medicinal value. N-acetyl-cysteine has the ability to neutralize cell and DNA damaging free radicals and therefore plays an important role in slowing down the process of aging. As such, it protects us from a wide range of modern toxins including paraquat (a toxic herbicide), acrolein (present in cigarette smoke and auto exhaust), halothane (an anesthetic), adriamycin (both anticancer drugs) and hazardous side effects of cyclophosphamide. Apart from this toxin protection, it also facilitates in converting and synthesizing glutathione, an amino acid that is found in every cell. This amino acid comprises of glycine, L-glutamic acid, and L-cysteine, out of which glycine and L-glutamic acid are present in large quantities in our diets. Despite this, our bodies can produce glutathione only in limited quantities due to limited availability of cysteine. N-acetyl-cysteine supplements thus help the body increase production of glutathione.

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.

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- Also called Riboflavin, B2 is a water absorbed vitamin of which the body must replenish its supplies each day as it cannot be stored. It is necessary for the production of red blood cells and, like the other B vitamins, it works at supporting it supports energy production by helping in the metabolism of various foods.B2 is required for healthy skin as well as hair growth, the nails and has a role in regulating the activity of the thyroid gland. It is also necessary in order that the body can process amino acids found in proteins and fats and to activate vitamin B6 and folic acid.

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.

Vitamin C- The essential nutrient L-ascorbic acid, or rather Vitamin C, is necessary for a wide plethora of metabolic reactions in almost all living beings. In humans, Vitamin C is vital in the collagen synthesis. While most beings are able to make it internally, apes and humans cannot. Interestingly enough, while widely promoted as the best dietary source of Vitamin C, Oranges are dwarfed by the Kakadu plum, which has sixty times the amount. Prominent are rose hips, blackcurrant, red peppers, parsley, the kiwifruit, broccoli, redcurrant, several berries including strawberries and raspberries, as well as more exotic fruits and vegetables like Camu Camu, acerola, seabuckthorn, Indian gooseberry, jujube, guava and baobab. Tomatoes, while very popular Vitamin C source in the US, are very low on the Vitamin C scale.