The Popotin is our balm for baby's buttocks. Compatible with washable diapers, it does not contain zinc. The beeswax it contains acts as a protective barrier between baby's skin and small needs. The clay remineralizes the skin. The shea butter, avocado and calendula oil it contains help heal minor ailments. Ideal in tube for the diaper bag or for the parent who does not want to get their fingers dirty!