Vitamin B6 is a water-soluble vitamin that is needed for more than 100 enzymes involved in protein metabolism. The nervous and immune systems also need Vitamin B6 to function efficiently, and the vitamin is essential for red blood cell metabolism. In addition to helping make hemoglobin (which carries oxygen to the tissues), Vitamin B6 helps to increase the amount of oxygen carried by the hemoglobin.

Vitamin B12 helps maintain healthy nerve cells and red blood cells. It is also needed to make DNA, the genetic material in all cells.

Taurine is a non-essential amino acid and is found in high concentrations in the white blood cells, skeletal muscles, central nervous system as well as the heart muscles. In adults, but not children, this nutrient can be manufactured from methionine in the body and from cysteine in the liver, but vitamin B6 must be present.

is a creeping shrub native to Venezuela and northern Brazil in the Amazon rain forest. The fruit are small, bright-red, and contains black seeds.Guarana seeds are rich in caffeine and contain up to 4-8% caffeine, more than coffee beans, which contain approximately 1–2.5% caffeine. The seeds are also rich in tannins and xanthine alkaloids theophylline and theobromine.

The term ginseng refers to several species of the genus Panax . For more than two thousand years, the roots of this slow-growing plant have been valued in Chinese medicine. Several studies report that ginseng can modestly improve thinking or learning at daily doses between 200 and 400 milligrams of standardized extract G115®, taken by mouth daily for up to 12 weeks. Mental performance has been assessed using standardized measurements of reaction time, concentration, learning, math, and logic.