What's So Special About Cajeput?

September 05, 2025 by Sarah Villafranco, MD

Ingredient 

Cajeput Essential Oil

Fancy Latin Name 

Melaleuca leucadendra, or Melaleuca cajuputi

About The Plant

Cajeput trees grow natively in Australia and New Zealand, and also grows in parts of Indonesia, Papua New Guinea,  Vietnam, and Thailand. They can grow up to 70-100 feet tall, and are known as weeping paperbarks, with thick, white, papery bark and weeping branches. Their happy place is in monsoon  or coastal forests. It is believed that the word “cajeput” is derived from the Indonesian name for the tree, “kayu putih,” meaning white wood. In the UK, the spelling is cajuput. 

Cajeput essential oil is steam-distilled from the twigs and some leaves of the tree, and smells camphorous, but much less medicinal than its close cousin, tea tree oil. Cajeput has more fruity and spicy notes, making it a lovely aromatic addition to aromatherapy blends, and a more pleasant choice for many people in skincare formulations than the more pungent tea tree oil. 

Trunk sections of paperbark trees from the Melaleuca genus growing several feet from each other

Aromatherapy Benefits of Cajeput

Cajeput is helpful during cold and flu season, as it is high in the monoterpene 1,8-cineole; this compound is also known as eucalyptol, and is found in many essential oils, such as eucalyptus, rosemary, laurel, tea tree, sage, and niaouli. Animal studies suggest that 1,8 cineole acts as a bronchodilator, relaxing the smooth muscles of the airways and as a mucolytic, helping to break up and clear mucus from the airways more easily. If you want to try using cajeput next time you have a cold, an easy method is to place a drop or two on the floor or wall of your shower, away from the flow of water, and breathe it in during a steamy shower.  

Skincare Benefits of Cajeput

Cajeput essential oil is effective against many gram positive and gram negative bacteria, as well as yeast, mold, and demodex mites, making it an excellent choice for acne-prone or dermatitis-prone skin (in the correct concentration and formulation, not used directly on the skin). 

We use cajeput in our Spotless Blemish Oil for its antibacterial properties, given the role that bacteria can play in acne. In this formula, in combination with other antibacterial and anti-inflammatory essential oils, cajeput can help reduce the size and appearance of a blemish, even before it comes fully to the surface of the skin. 

Safety Information

Cajeput essential oil is high in 1,8-cineole and should not be used on or around infants or young children as it can cause respiratory and/or CNS problems. Cajeput should not be taken internally without direct supervision by a medical professional. 

Close up shot of narrow green leaves on the Melaleuca tree

Fun Facts about Cajeput

  • Aboriginal people have long used the leaves of Melaleuca trees to cook food, and the bark to make shelters and canoes, and to wrap deceased loved ones before burial. 
  • Many different essential oils can be made from species in the Melaleuca genus, but the two most widely produced and used are Melaleuca alternifolia (tea tree) and Melaleuca leucadendra and/or cajuputi (cajeput). 
  • 1,8-cineole, one of the main constituents in cajeput essential oil, is sold in capsule form in Germany in a product called Soledum to treat acute respiratory infections like colds, flu, bronchitis, and sinusitis. 
  • Cajeput is one of the active ingredients in a well-know balm for aching muscles called Tiger Balm, along with camphor, menthol, and clove. 
  • Cajeput is used in treating bacterial and fungal infections in fish; Melafix and Bettafix are examples of products sold for this purpose. 

Hope you learned some new things! Give cajeput a try if you're not a huge fan of tea tree oil—it would also be a great addition to a home essential oils set, especially useful in DIY cleaning products!

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The information contained in this post is for educational interest only. This information is not intended to be used for diagnosis or treatment of any physical or mental illness, disease, or skin conditions. 

Resources: 

Wińska K, Mączka W, Łyczko J, Grabarczyk M, Czubaszek A, Szumny A. Essential Oils as Antimicrobial Agents-Myth or Real Alternative? Molecules. 2019 Jun 5;24(11):2130. doi: 10.3390/molecules24112130. PMID: 31195752; PMCID: PMC6612361.

Abd Wahab NZ, Ja’afar NSA, Ismail SB. Evaluation of Antibacterial Activity of Essential Oils of Melaleuca cajuputi Powell. J Pure Appl Microbiol. 2022;16(1):549-556. doi: 10.22207/JPAM.16.1.52

Paichitrojjana A, Chalermchai T. Comparison of in vitro Killing Effect of Thai Herbal Essential Oils, Tea Tree Oil, and Metronidazole 0.75% versus Ivermectin 1% on Demodex folliculorum. Clin Cosmet Investig Dermatol. 2023 May 18;16:1279-1286. doi: 10.2147/CCID.S414737. PMID: 37228784; PMCID: PMC10202699.

Cosima C. Hoch, Julie Petry, Lena Griesbaum, Tobias Weiser, Kathrin Werner, Michael Ploch, Admar Verschoor, Gabriele Multhoff, Ali Bashiri Dezfouli, Barbara Wollenberg,

1,8-cineole (eucalyptol): A versatile phytochemical with therapeutic applications across multiple diseases, Biomedicine & Pharmacotherapy, Volume 167, 2023

Silva RAD, Antonieti FMPM, Röder DVDB, Pedroso RDS. Essential Oils of Melaleuca, Citrus, Cupressus, and Litsea for the Management of Infections Caused by Candida Species: A Systematic Review. Pharmaceutics. 2021 Oct 15;13(10):1700. doi: 10.3390/pharmaceutics13101700. PMID: 34683994; PMCID: PMC8540016.

 

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OUR WELLNESS + SKINCARE EXPERT

Sarah Villafranco, MD

Dr. Sarah Villafranco attended Georgetown University Medical School, and went on to complete her residency in emergency medicine at George Washington University. She moved to Colorado, where she practiced as a board-certified emergency medicine physician at Aspen Valley Hospital, Snowmass Clinic, and Valley View Hospital in Glenwood Springs, CO. After losing her mother to pancreatic cancer, she took a local soap making class, and fell in love with the chemistry and artistry of making soap. Sarah went into research mode and was alarmed to learn how many potentially harmful ingredients were in most skincare products on the market. She knew she could make better, safer products that were as effective (if not more so) than conventional products. After a few years of research and development, Sarah stepped away from the emergency room to launch Osmia Skincare in April of 2012. She remains a licensed physician in Colorado, and now helps people find healthier, happier skin as CEO of the brand.