Boudreaux's Butt Paste now has a dermatologist-tested and hypoallergenic formula designed for babies with sensitive skin. Developed by a pharmacist and father of four, Boudreaux's Butt Paste has been trusted for over 40 years by pediatricians and parents to help protect chafed skin and minor skin irritations due to diaper rash and to instantly helps seal out wetness. When used on a daily basis, it is also a great way to help prevent diaper rash. Boudreaux's Butt Paste for Sensitive Skin is a thick diaper rash paste with 16% zinc oxide and is ideal to help treat and prevent mild diaper rash. An effective and safe formula, it starts to soothe on contact, provides instant protection and is easy to spread on baby's tender bottom. Boudreaux's Butt Paste for Sensitive Skin is formulated without fragrance and contains only five ingredients. It also is free from dyes, preservatives, and parabens.