fragrance · active
Tea Tree Leaf Oil
Watch if sensitive·Moderate evidence·INCI: Melaleuca Alternifolia (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.
Questions
- Is tea tree oil safe to use on skin?
- Tea tree oil is widely used in skincare and is considered safe at diluted concentrations typical in cosmetics. Pure or highly concentrated tea tree oil can be irritating, but cosmetic products use safe dilution levels. Patch testing is recommended if you have reactive skin.
- Can tea tree oil be too strong or cause irritation?
- Undiluted tea tree oil can irritate or burn skin, but cosmetic products dilute it appropriately. Some people find even diluted tea tree products irritating or drying. If you use concentrated tea tree, always dilute before applying to skin.
- Does tea tree oil have any downsides?
- At cosmetic concentrations, tea tree oil is generally well tolerated. Potential downsides include drying effects and sensitivity in some individuals. It is not recommended for use on injured or very sensitive skin without dilution.
References
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.