Earth's Care Pain Relieving Ointment is a powerful blend of three natural ingredients that provide soothing, penetrating relief from sore muscles, joint pain, backache and minor arthrit's. Their proprietary formula features camphor, menthol and wintergreen oil that together work as an effective analgesic without petrochemicals, parabens or phthalates. Natural camphor is found in the wood of the camphor laurel tree (cinnamomum camphora), an evergreen species from Asia. Natural menthol is a substance found in peppermint and other mint oils. Natural wintergreen oil is extracted from the leaves of wintergreen plants such as the eastern teaberry (gaultheria procumbens).