Pteroylmonoglutamic Acid is the technical name for the naturally occurring water-soluble B vitamin known as vitamin B9 or Folate. It functions together with vitamin B12 to form healthy red blood cells and plays a role in normal cell division and growth, the structure of the nervous system, the function of the immune system and maintenance of normal blood homocysteine levels. It also contributes to amino acid synthesis, psychological function and a reduction in tiredness and fatigue.