a monoterpenoid found in many essential oils, providing cooling and anti-inflammatory effects
cineole is the dominant compound in eucalyptus oil and occurs in rosemary, tea tree, bay laurel, and sage
it exhibits antimicrobial, antioxidant, and bronchodilatory activity, making it useful in respiratory medicine and aromatherapy
cineole penetrates biological membranes readily, enhancing the delivery of other therapeutic compounds