The properties of PABA
PABA is taken by mouth for skin conditions including vitiligo, pemphigus, dermatomyositis, morphea, lymphoblastoma cutis, Peyronie's disease, and scleroderma. PABA is also used to treat infertility in women, arthritis, “tired blood” (anemia), rheumatic fever, constipation, systemic lupus erythematosus (SLE), and headaches. It is also used to darken gray hair, prevent hair loss, make skin look younger, and prevent sunburn. PABA is approved by the U.S. Food and Drug Administration (FDA) for use as a sunscreen. PABA seems to be effective during sweating, but not when skin is submerged in water – during swimming, for example.