Melaleuca alternifolia oil. Soothes minor burns, cuts & scrapes, insect bites & stings. CVS Pharmacist recommended. CVS/pharmacy 100% Tea Tree Oil is a powerful natural oil that is steam distilled from the leaves of the native Australian melaleuca alternifolia tree. Tea Tree Oil has been used for hundreds of years as an all-natural soothing topical agent for minor burns, cuts, scrapes, insect bites, boils, pimples and stings. Not tested on animals. No animal ingredients.