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Melaleuca Alternifolia Leaf Oil

Also-called-like-this: Tea Tree Oil, TTO

Official CosIng Information


The famous tea tree oil. One of the best known essential oils which comes from Australia where it has been used for almost 100 years for its antiseptic and anti-inflammatory actions. Legend has it that the medicinal benefits of the oil were considered so important that Australian soldiers were supplied with some tea tree oil in their World War II military kit.

Similar to other essential oils, tea tree oil is a very complex chemical mixture consisting of about 100 components, the major ones being terpinen-4-ol (40%), γ-Terpinene (23%) and α-Terpinene (10%). Terpinen-4-ol is considered to be the main active component but as a great article in Clinical Microbiology Reviews states "while some TTO components may be considered less active, none can be considered inactive" and most components contribute to TTO's strong antibacterial, antiviral and antifungal effects

Regarding skincare and tea tree oil, its most well-known effect is probably being a well established anti-acne ingredient. Multiple studies confirm that TTO is effective against the evil acne-causing bacteria called P. acnes and the effectiveness of 5% TTO gel is comparable to the gold standard anti-acne treatment, 5% Benzoyl Peroxide lotion. You need to be a bit more patient with TTO, though, as its effects come slower but also with fewer side effects.

Regarding TTO and sensitive skin, we say that you should be careful. Even if your skin is not sensitive you should never put undiluted TTO on your skin. Luckily, it contains only very small amounts of the common allergens (such as limonene), but irritant and allergic reactions still happen, especially by oxidation products that occur in older or not properly stored oil.  So if you have some pure TTO at home, know that storage matters, keep it in a cool, dry, dark place and use it up in a reasonable amount of time.

Overall, we do not often give a goodie status to essential oils, but we feel that TTO's unique antibacterial and anti-acne properties with its minimal allergen content warrant an exception. If your skin is acne-prone, TTO is something to experiment with.

Show me some proof

  • Carson, C. F., K. A. Hammer, and T. V. Riley. "Melaleuca alternifolia (tea tree) oil: a review of antimicrobial and other medicinal properties." Clinical microbiology reviews 19.1 (2006): 50-62.
  • Bassett, I. B., D. L. Pannowitz, and R. S. Barnetson. "A comparative study of tea-tree oil versus benzoylperoxide in the treatment of acne." The Medical Journal of Australia 153.8 (1990): 455-458.
  • Hammer, Katherine A., Christine F. Carson, and Thomas V. Riley. "Susceptibility of transient and commensal skin flora to the essential oil of Melaleuca alternifolia (tea tree oil)." American journal of infection control 24.3 (1996): 186-189.
  • Enshaieh, Shahla, et al. "The efficacy of 5% topical tea tree oil gel in mild to moderate acne vulgaris: a randomized, double-blind placebo-controlled study." Indian Journal of Dermatology, Venereology, and Leprology 73.1 (2007): 22.
  • Carson, C. F., and T. V. Riley. "Safety, efficacy and provenance of tea tree (Melaleuca alternifolia) oil." Contact Dermatitis 45.2 (2001): 65-67.
  • Cal, Krzysztof, and Malgorzata Krzyzaniak. "Stratum corneum absorption and retention of linalool and terpinen-4-ol applied as gel or oily solution in humans." Journal of dermatological science 42.3 (2006): 265-267.

Products with Melaleuca Alternifolia Leaf Oil

Garden Lab Tea Tree 100% Natural Ready To Use Blend Elizavecca Natural 90% Olive Cleansing Oil Kruidvat Behandelingsolie Tea Tree Acnol Gel For Acne BABOR Active Purifier Derma Revive Natural Aloe Vera Gel Elemis Tea Tree S.O.S. Spray Keeva Organics Tea Tree Oil Acne Treatment Cream Manyo Factory Active Refresh Herb Oil Superdrug Tea Tree Facial Cleansing Pads Thursday Plantation Tea Tree Oil And Manuka Honey Healing Balm Topvet Tea Tree Oil Gel Umoua Anti-Acne Gel doTERRA Hd Clear Topical Blend in her element Low Ph Rose Gel Cleanser natural farm Nelson Tea Tree Cream 100% Pure Tea Tree & Willow Clarifying Cleanser A'pieu Nonco Tea Tree Tok Powder Alex Steinherr Pore Balance Blemish Rescue Stickers Aroma magic Neem & Tea Tree Face Wash Desert Essence Tea Tree Replenishing Shampoo Desert Essence Thoroughly Clean Face Wash with Tea Tree Oil Holika Holika Ac Mild Red Spot Patches Natura Culina Botanical Face Wash Oriflame Love Nature Purifying Tea Tree Oil The Body Shop Tea Tree Oil The Body Shop Tea Tree Oil TheMineraw Glow Serum BIOSSANCE Squalane + Tea Tree Balancing Oil Cocokind Turmeric Spot Treatment Dr.Belmeur Spot Plaster Band ESPA Purifying Tea Tree Gel Environ Sebuprep Fourth Ray Beauty After Hours J.R.Liggett's Tea Tree & Hemp Oil Formula Shampoo Bar Kruidvat Originals Tea Tree Day And Night Cream MYK Natural Skincare Light Facial Gel Neogen A-Clear Aid Soothing Pink Eraser Secret Skin Tea Tree Relax Toner Non-Alcohol Skin Laundry Nourishing Cleansing Oil phyto personal care Aloe Vera Green Tea Gel Alaffia African Black Eucalyptus Tea Tree Soap Australian bodycare Tea Tree Oil Spot Stick Belif Problem Solution Toner Boots Tea Tree Witch Hazel Back Spray Carbon Theory Cleansing Bar Comfort Zone Skin Regimen Tea Tree Booster Desert Essence Cucumber & Aloe Micellar Cleansing Dr Bronner Tea Tree Pure-Castile Liquid Soap ECLADO A.C Control Ampoule