In a world that’s ever more intrigued by crystals and essential oils, folks across the globe are looking for ways to incorporate the two into their beauty routines. Where crystals have been turned into face rollers and gua sha tools, essential oils have made their way into perfumes, skincare, and haircare. Today, we’re here to talk about the latter, specifically in regards to eucalyptus oil.
Eucalyptus oil is from the eucalyptus tree (Eucalyptus globulus), which is native to Australia. The oil is distilled from the fresh leaves and branch tops of the tree. Eucalyptus oil has antibacterial and antifungal properties making it a useful oil in many products.
You may be surprised how beneficial eucalyptus oil can be for your hair. From relieving a dry and itchy scalp due to conditions like dandruff or dermatitis and even preventing head lice—this oil may be a great all-natural product to add to your beauty routine. But is it right for everyone? We spoke with the experts to weigh the pros and cons of eucalyptus oil for your hair and scalp.
Meet the Expert
Even though eucalyptus oil is natural and has quite a few benefits, you shouldn't use pure oil on your hair or scalp. There are many hair products that are infused with eucalyptus oil to give you all the benefits, without the side effects.
Eucalyptus oil has been used for many years to help heal and treat a variety of conditions. As it is a native plant to Australia, it was used on wounds and to heal fungal infections in Aboriginal medicines. Greek, European and Indian cultures also used it to reduce fevers, minimize coughs and even clean hospital rooms. Eucalyptus oil continues to be used today and has many benefits.
Anyone with a dry, itchy, flaky scalp—whether due to dandruff or dermatitis or styling product buildup—can benefit from incorporating eucalyptus oil into their routine. Additionally, folks battling an annoying case of head lice may benefit as well. And, on the other end of the spectrum, people with very oily scalps can benefit, as eucalyptus oil can help ensure that excess bacteria won’t form as a result.
As beneficial as eucalyptus oil can be, though, King doesn’t recommend it for folks with sensitive skin because, as with other essential oils, allergic contact dermatitis to eucalyptus oil is possible.
Just remember: Even if you think you aren’t sensitive to it, you might be.
“Despite all of its benefits, it has a very high potential of causing sensitization and serious dermal reactions when used in large quantities,” Koestline says. “Therefore, it is best to trust a professional with regards to using it topically in formulations for skin and hair. It is also not recommended for use on infants and children under 5 years of age. It can cause spasms of the glottis. Ingestion of the oil is toxic and can affect the central nervous system.”
The caveat to this, of course, is that thanks to eucalyptus oil’s popularity, many store-bought scalp scrubs, treatments, and shampoos now exist to address any scalp symptoms without having to rush to a dermatologist or trichologist. And, because these products have undergone rigorous testing to even make it on the market, they’re often a safe bet for at-home use.
The most important thing to remember when adding eucalyptus oil into your haircare routine is that it absolutely must be accompanied by a carrier oil. “I don’t encourage essential oils to be used by people when they can't measure the way a chemist would for a hair product,” says HairClub hair health expert and trichologist Shab Reslan. As such, Reslan recommends steering clear of eucalyptus oil DIYs and instead putting your faith in professional stylists or highly rated (and tested) at-home products that feature the ingredient but aren’t entirely comprised of it. There are several products that use eucalyptus oil, depending on your specific scalp and hair needs.
While you absolutely can book an in-salon scalp treatment at your salon or with your dermatologist or trichologist, you can also head to your local beauty aisle or store to stock up on eucalyptus-oil-infused products for your hair and scalp. In using eucalyptus-oil-infused products, you can expect a noticeable improvement not only in the way your scalp feels but in how it looks too.
Jupiter
Soothing Elixir
$29
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This little bottle does a whole lot of good for itchy, inflamed scalps. It's filled with eucalyptus oil, olive oil, and oat kernel to soothe the scalp and provide cooling relief on the spot.
Together Beauty
Life in the Fast Lane Dry Shampoo
$25
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Whereas most dry shampoos exacerbate dry scalp conditions, this one, which is formulated with eucalyptus oil, helps to absorb oil while soothing the scalp. Win-win.
Mizani
Scalp Care Calming Dry Scalp Lotion
$20
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This lightweight, anti-itch scalp lotion is made with eucalyptus oil, avocado oil, and aloe vera to soothe, hydrate, and cool the scalp on contact. Simply apply it directly to your scalp and let it sink in to work its magic.
Flora & Curl
Coconut Mint Curl Refresh Clay Wash
$24
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Looking to soothe your scalp while also deeply cleansing and hydrating your hair? This eucalyptus-oil-infused clay wash (which is actually a jar of powder) will help do just that. It's formulated specifically for curly hair and has a delicious coconut mint scent. This product also happens to be as close to a DIY eucalyptus oil product as we recommend. All you have to do is mix 2 Tbsp of the powder with 6 Tbsp of warm water, let it activate, and apply it to your scalp and strands. Wait for 10 to 15 minutes (preferably with a plastic cap overtop), then rinse it off to revel in just how amazing your hair looks.
H2O Beauty
Eucalyptus & Aloe Revitalizing Shampoo
$20
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H2O+ Eucalyptus & Aloe Revitalizing Shampoo leaves your hair shiny and smooth and your scalp healthy. It is formulated without harsh ingredients, including parabens and phthalates. Reviewers love the clean eucalyptus scent of this shampoo.
Although eucalyptus oil decreases scalp irritation which may promote hair growth, rosemary oil is one of the best oils for longer, thicker locks. A study showed it worked as well as minoxidil, but with less side effects.
Our experts don’t recommend using pure eucalyptus oil on your hair or scalp for any length of time due to the potential side effects. Products that are infused with the oil are your best bet. Follow the directions on the label, however there are many leave-in treatments that have eucalyptus oil.
Look for shampoos or serums that contain proven dandruff-fighting ingredients including zinc pyrithione, selenium sulfide, salicylic acid, ketoconazole and/or coal tar.