No. 1 Choice of pediatricians & mothers. Includes 20% more free! Helps provide overnight relief. Rich, thick formula. Helps heal, soothe & prevent diaper rash. Pediatric Health committed to kids. Desitin Original is a unique formulation that contains 40% zinc oxide, the 1 Pediatrician recommended ingredient, and soothing emollients such as lanolin, petrolatum and Norwegian cod liver oil, a natural source of vitamins A and D. Desitin Original is so effective in sealing out wetness and germs that in many cases, diaper rash starts to disappear in hours. And it"s hypoallergenic and pediatrician tested, so it"s gentle on tender skin.