Baby powder is an astringent powder that is used for preventing diaper rash and for cosmetic uses. It is made from talc or cornstarch and may contain additional ingredients like fragrances. Baby powder is used to absorb moisture and reduce skin-on-skin friction, which may help prevent rashes, including diaper rash. It is often used to treat diaper rash in infants and is applied around the genitals and on the legs. Women also commonly use baby powder on their genitals to reduce feminine odors, and adult men and women may use it on other parts of their body to soothe rashes or ease friction on the skin. However, the American Academy of Pediatrics (AAP) recommends against using baby powder since babies don’t really need it and it can sometimes irritate their already-sensitive, delicate skin. Inhaling baby powder (talc or cornstarch) can cause respiratory problems if it enters the lungs, especially in babies. Therefore, it is important to use baby powder safely by avoiding putting it directly on the genitals, keeping it away from the face, and shaking it out directly into the hand away from the face. Alternatives to talc-based baby powder include cornstarch powders and arrowroot starch.