Free of petroleum, lanolin (comes from sheep's wool), and parabens (artificial preservatives), Bella B Nipple Nurture Butter uses plant based ingredients that are food-grade and 100% safe for mom and baby. We've chosen the very best natural ingredients including cocoa, shea and mango butter that are combined to provide excellent soothing and healing properties, without using animal by-products. Use before and after breastfeeding to help prevent and soothe sore or cracked nipples.