PABA (para-aminobenzoic acid), is generally classified with the B-vitamin family, although it is not itself a vitamin. Its best known role is as a precursor for folic acid production. Folic acid is important in cell division and the healthy development and structure of red blood cells. NutraBio PABA is pharmaceutical grade, HPLC lab tested for potency, and free of harmful impurities. In addition NutraBio PABA contains no fillers, excipients, or additives.