✔ 100% bio-based formula (excludes zinc oxide)✔ Independently lab tested & USDA certifiedOur famously gentle, award-winning diaper rash ointment is as good as you can get. It's free of common allergens, preservatives, and harsh chemicals, so it’s perfect for soothing sensitive, irritated skin. Vitamin-grade zinc oxide treats and prevents diaper rash. Added coconut oil and licorice help soothe sore bottoms. Cloth diaper safe. Now 100% bio-based! Our famously gentle, award-winning diaper rash ointment is as good as you can get. It's free of added fragrance, common allergens and harsh chemicals, so it’s perfect for soothing sensitive, irritated skin. We removed the water from the formula which allowed us to go preservative-free as all preservatives can be irritating to already sensitive skin.