NOW Foods PABA (Para-Aminobenzoic Acid) 500 mg provides this naturally occurring compound — a component of folic acid found in whole grains and organ meats — at a therapeutic supplemental dose. PABA has historically been used as a sunscreen ingredient (in older UV-absorbing formulas) and as a supplement for various connective tissue and skin conditions. Research has examined PABA for vitiligo (skin depigmentation), Peyronie's disease, scleroderma, and supporting skin health. PABA also participates in the intestinal synthesis of folic acid by bacteria. NOW Foods provides 500 mg of pharmaceutical-grade PABA per capsule in a clean vegetarian formulation manufactured in their GMP-certified facility. A specialty supplement for those following specific nutritional or skin health protocols involving PABA.