Tea Tree Leaf Oil

An essential oil from tea tree leaves, used for antimicrobial and antioxidant properties. Well tolerated in diluted formulations, but undiluted tea tree oil can cause allergic sensitization and irritation. People with sensitive skin or a history of plant allergies should patch test first.

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.