Treat extreme diaper rash with Maximum Strength Boudreaux's Butt Paste, which is made with 40% zinc oxide for strength. This ointment goes on and cleans off with ease and offers a pleasant scent. Net weight: 4 oz. Product Highlights: Treats and helps prevent diaper rash Made with 40% zinc oxide for extra strength Goes on and cleans off easily Pleasant scent 4 oz.