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Tea tree oil, derived from the leaves of the Melaleuca alternifolia plant, has long been used for its natural cleansing properties. Known for its sharp, herbal scent, it contains compounds believed to support skin health and fight unwanted microbes. Often used in skincare, hair care, and natural cleaning products, tea tree oil has been researched for its role in soothing minor skin irritations and promoting a healthy scalp. This article will explore its uses and research behind it.
What Is Tea Tree Oil?
Tea tree oil is a natural essential oil that is extracted from the leaves of the tea tree plant (Melaleuca alternifolia), which is native to Australia. The oil is extracted through a process of steam distillation and has a fresh, medicinal scent.
Tea tree oil has a long history of traditional use by Australian Aboriginals, who used it for its antiseptic and healing properties. Today, it is widely used in various personal care and cosmetic products, as well as in natural medicine.
Tea tree oil is known for its antimicrobial and anti-inflammatory properties, making it a popular natural remedy for a variety of conditions, including acne, dandruff, and fungal infections. It is also used topically for wound healing and to soothe skin irritations.
Tea tree oil should always be used with caution, as it can be toxic when ingested or applied in high concentrations. It is important to dilute tea tree oil before use and to test a small area of skin for any potential allergic reactions. Additionally, it is important to consult with a healthcare provider before using tea tree oil to ensure it is safe and appropriate for individual use.
How is Tea Tree Oil Used?
Tea tree oil has a wide range of uses due to its antiviral, antibacterial, antifungal, and anti-inflammatory properties. Here are some common ways tea tree oil is used:
- Skincare: Tea tree oil is popular for treating acne and other skin conditions, such as eczema, psoriasis, and dermatitis. It can be applied topically by diluting it with a carrier oil (such as coconut or almond oil) and applying it directly to the affected area.
- Wound healing: Tea tree oil’s antibacterial properties may help in treating minor cuts and scrapes. Clean the wound first, then apply a few drops of diluted tea tree oil to a cotton ball or swab and gently dab on the wound.
- Haircare: Tea tree oil can be used to treat dandruff, scalp irritation, and even head lice. Add a few drops to your shampoo or conditioner, or mix with a carrier oil and massage into the scalp.
- Aromatherapy: Tea tree oil can be diffused in an essential oil diffuser to purify the air and support respiratory health. It may also help alleviate congestion and sinus issues.
- Household cleaning: Tea tree oil’s antimicrobial properties make it a natural alternative for cleaning surfaces and removing mold. Mix a few drops with water in a spray bottle and use it to clean countertops, bathroom surfaces, or other areas prone to mold and mildew.
- Insect repellent: Tea tree oil can be used to repel insects like mosquitoes and ants. Dilute a few drops in a carrier oil and apply it to your skin or mix it with water in a spray bottle and spritz it around your home.
- Nail care: Applying diluted tea tree oil to affected nails can help treat fungal nail infections and improve nail health.
Remember to always dilute tea tree oil with carrier oil before applying it to the skin, as it can cause irritation or an allergic reaction when used undiluted. It is also important to perform a patch test on a small area of skin before using tea tree oil for the first time, to check for any potential reactions. If you are pregnant or breastfeeding, consult your healthcare provider before using tea tree oil or any other essential oil.
What Are the Potential Health Benefits of Tea Tree Oil?
- Treating acne: Tea tree oil has been shown to be effective in reducing acne lesions and inflammation due to its antimicrobial and anti-inflammatory properties. [PMID: 2145499]
- Treating dandruff: Tea tree oil has been shown to be effective in reducing dandruff and scalp irritation due to its antifungal properties. /PMID: 12451368
- Treating fungal infections: Tea tree oil has been shown to have antifungal properties and can be used to treat various fungal infections, including athlete’s foot and nail fungus. /PMID: 12121393
- Relieving skin irritations: Tea tree oil can be used topically to relieve skin irritations, such as insect bites, sunburns, and rashes, due to its anti-inflammatory and soothing properties. Additionally, a study has shown that tea tree oil can significantly reduce histamine-induced skin inflammation, providing scientific support for its effectiveness. /PMID: 12452873
- Supporting wound healing: Tea tree oil has been shown to have antibacterial properties and may help promote wound healing. [PMID: 15066738]
- Supporting dental health: for those with gingivitis, tea tree oil was found effective. [PMC7069753]
- Fighting body odor: Tea tree oil can be used as a natural deodorant due to its antimicrobial properties.
Medication Interactions with Tea Tree Oil
- Anticoagulant medications: Tea tree oil may increase the risk of bleeding when used in combination with anticoagulant medications, such as warfarin. This interaction may increase the risk of bruising and bleeding.
- Hormonal medications: Tea tree oil may have estrogen-like effects and may interfere with the effectiveness of hormonal medications, such as birth control pills. This interaction may reduce the effectiveness of hormonal medications.
- Cytochrome P450 substrates: Tea tree oil may affect the metabolism of certain medications that are metabolized by the liver, such as anti-anxiety medications and cholesterol-lowering medications. This interaction may increase or decrease the effectiveness of these medications.
- CYP2B6 substrates: Tea tree oil may affect the metabolism of certain medications that are metabolized by the liver enzyme CYP2B6, such as bupropion and efavirenz. This interaction may increase or decrease the effectiveness of these medications.
Supplement Interactions with Tea Tree Oil
- Vitamin E: Tea tree oil and vitamin E may have complementary effects on reducing oxidative stress, but taking them together may increase the risk of bleeding.
- Omega-3 fatty acids: Tea tree oil and omega-3 fatty acids may have complementary effects on reducing inflammation, but taking them together may increase the risk of bleeding.
- Ginkgo biloba: Tea tree oil and Ginkgo biloba may both increase the risk of bleeding, so taking them together may increase the risk of bleeding.
- Garlic: Garlic may increase the risk of bleeding, so taking it with tea tree oil may increase the risk of bleeding.

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Tea Tree Oil
Melaleuca alternifolia
Aroma: Potent, warm, spicy
Benefits: Cleansing, purifying, renewing
For aromatherapy use. For all other uses, carefully dilute with a carrier oil such as jojoba, grapeseed, olive, or almond oil prior to use. Please consult an essential oil book or other professional reference source for suggested dilution ratios.
Purifying Room Blend: Add 1 drop each of organic tea tree oil and grapefruit oil, along with 10 drops of organic lemon oil to a diffuser and enjoy.
Extraction Method: Steam Distilled from leaves.
Organic tea tree oil (pure). Natural essential oils are highly concentrated and should be used with care. Caution: Keep out of reach of children. Avoid contact with eyes. If pregnant or lactating, consult your healthcare practitioner before using. Not for internal use. Purity Tested/Quality Assured
Tea Tree Facial Serum
Mask-ne (mask acne) is the new normal, and Baebody’s Tea Tree Serum is the perfect solution. Helping to reduce and calm inflammation & blemishes with key ingredients Tea Tree, Vitamin B3 and Salicylic Acid, it’s our savior serum that also has anti-aging properties.
Suggested Use: Apply morning and night.
Ingredients: Aqua (Deionized Water), Dimethyl Sulfone (Msm), Sodium Ascorbyl Phosphate (Vitamin C), Niacinamide (Vitamin B3), Squalane (From Olive Oil), Rosa Canina Fruit Oil (Organic Rosehip Seed), Retinol (Vitamin A), Tocopherol (Vitamin E), Salicylic Acid, Caesalpinia Spinosa Gum (Tara, Botanical Hyaluronic Acid), Centella Asiatica Extract (Organic Gotu Kola), Equisetum Arvense Extract (Horsetail), Geranium Maculatum Extract (Wild Geranium), Taraxacum Officinale Extract (Organic Dandelion), Melaleuca Alternifolia Leaf Oil (Tea Tree Essential Oil), Lavandula Officinalis Flower Oil (Lavender Essential Oil), Cananga Odorata Flower Oil (Ylang Essential Oil), Glycerin (Kosher, Vegetable), Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Lecithin, Pentylene Glycol, Polysorbate 20, Alcohol, Monobasic Potassium Phosphate, Phenoxyethanol (Preservative), Ethylhexylglycerin (Preservative).
Caution: For external use only. Keep out of reach of children. Discontinue use if irritation occurs. Avoid direct contact with eyes. Discontinue use if irritation or allergic reaction occurs.
Patch Test: We recommend that people with sensitive skin perform a patch test prior to use. Apply a small amount behind your ear or to the inside of your elbow, allow to dry & leave on for 12 hours to spot any reaction.
Tea Tree Oil Shampoo
Like a detox for your hair, this deep-cleansing Tea Tree Oil Shampoo helps remove build up & impurities from the hair while restoring natural luster. The healing & calming properties of Tea tree oil make this perfect for dandruff prone hair or sensitive scalps.
Suggested Use:
Wet hair, massage shampoo into hair and scalp, rinse thoroughly.
Ingredients: Water (Aqua), Coco-Betaine, Sodium Lauroyl Methyl Isethionate, Benzyl Alcohol, Citric Acid, Dehydroacetic Acid, Guar Hydroxypropyltrimonium Chloride, Melaleuca Alternifolia (Tea Tree) Leaf Oil, Mentha Piperita (Peppermint) Oil, Persea Gratissima (Avocado) Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Trisodium Ethylenediamine Disuccinate.
To Sum It Up
Tea tree oil supplements offer a variety of health benefits due to their antimicrobial and anti-inflammatory properties. These supplements can help manage acne, reduce dandruff, treat fungal infections, soothe skin irritations, and support wound healing. Additionally, they serve as a natural remedy for dental health issues and body odor. As with any supplement, it’s important to use tea tree oil responsibly to ensure the best results. Remember to check for possible interactions with other medications and supplements to maintain overall wellness.
This Article is Not a Substitute for Medical Advice
Dietary supplements are not designed to diagnose, treat, cure, or prevent any disease. The Supplement Sciences website seeks to provide comprehensive access to the most relevant supplement information along with convenient online ordering. We do not provide medical advice and cannot guarantee that every product suggested is completely without risk. Since each person is unique in their health history and medication use, it is important to discuss supplements with your personal physician. Specifically, pregnant women and individuals being treated for cancer or liver or kidney problems must consult their physician about every nutritional supplement they plan to take. People taking medications for the treatment of HIV or with a history of organ transplant must not take supplements without consulting with their physician.