Lemongrass Essential Oil: Everything You Need to Know
If you’ve ever walked through a tropical farmers’ market or sipped a bright, citrusy herbal tea, you’ve probably smelled lemongrass before. This tough, tropical herb isn’t just for adding zing to curries and stir-fries anymore—these days, its essential oil is popping up in everything from soap bars to stress-relief diffusers. Let’s break down everything you need to know about lemongrass essential oil, from its proven benefits to how to use it safely at home.
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Lemongrass Essential Oil Benefits & Uses
First, a quick recap: lemongrass essential oil is made by steam-distilling the fresh leaves and stalks of the lemongrass plant, right? It has that bright, sharp citrus scent that smells just like fresh lemon, but with an earthy, herbaceous kick. People have used it for centuries in traditional medicine to treat everything from upset stomachs to high blood pressure, and modern research is finally starting to back up some of those old-school claims. Let’s dive into the science-backed perks:
It Has Powerful Antibacterial Properties
Okay, let’s start with the big one: lemongrass oil kills bacteria. Like, really well. A 2010 study found that the oil works against a whole host of drug-resistant bacteria that cause nasty infections, including skin infections, pneumonia, blood infections, and serious gut issues. That’s why you’ll find it in so many natural cleaning products and wound care items these days! Even better, it’s a gentler alternative to harsh chemical disinfectants if you want to make your own DIY surface sprays.
It Fights Fungal Infections Too
Ever struggled with athlete’s foot, jock itch, or a stubborn yeast infection? Turns out lemongrass oil might help. A 1996 study found that it effectively stops four common types of fungi from growing, including the ones that cause those itchy, uncomfortable skin issues. The research found that even a 2.5% concentration of lemongrass oil was enough to slow or stop fungal growth, which makes it a great addition to natural foot creams or antifungal body washes.
It Reduces Inflammation
Chronic inflammation is the root cause of so many modern health problems: arthritis, heart disease, even some forms of cancer. Lucky for us, lemongrass oil is packed with a compound called citral that has major anti-inflammatory effects. A 2014 animal study found that when given orally or applied topically to mice, lemongrass oil drastically reduced swelling from induced inflammation. If you have joint pain from arthritis or red, irritated skin, a diluted topical application might help calm that down.
It Boosts Antioxidant Levels
Free radicals are the unstable molecules that damage your cells and speed up aging, right? Antioxidants fight those off, and lemongrass essential oil is loaded with them. A 2011 study found that lemongrass oil mouthwash had some of the strongest antioxidant activity of any natural oral care product. That’s great news for anyone looking to keep their gums and teeth healthy without using harsh synthetic ingredients.
It Helps Soothe Digestive Issues
Let’s be real: we’ve all had that post-burger stomachache or felt queasy after a big meal. Traditional healers have used lemongrass to treat digestive problems for hundreds of years, and modern research agrees. A 2012 mouse study found that lemongrass oil helped prevent and heal stomach ulcers, which are a common cause of sharp, burning stomach pain. It can also help calm nausea, which is why you’ll often find it in herbal tea blends for upset tummies. Pro tip: if you don’t want to use the essential oil, just steep dried lemongrass leaves in hot water for a cozy, calming cup of tea.
It May Relieve Diarrhea
Diarrhea is the worst, right? It’s annoying, it’s disruptive, and over-the-counter meds can leave you feeling constipated and sluggish. A 2006 study found that lemongrass oil helped slow down intestinal movement in mice who had induced diarrhea, cutting down on how often they needed to go. It’s not a cure-all, but it’s a gentle natural option to help get your gut back on track without the weird side effects.
It Could Lower Cholesterol Levels
High cholesterol is a major risk factor for heart disease and stroke, and keeping your numbers in check is so important. Traditional medicine has long used lemongrass to treat high cholesterol, and a 2007 study backed that up. Researchers found that rats fed a high-cholesterol diet who also got lemongrass oil had significantly lower cholesterol levels after just 14 days. More human studies are needed, but it’s a promising natural supplement for heart health.
It Helps Regulate Blood Sugar & Lipids
If you or someone you love has type 2 diabetes, this next perk might be huge. A 2007 rat study found that daily doses of lemongrass oil for 42 days helped lower blood sugar levels in diabetic rats. It also improved their lipid profiles, boosting their “good” HDL cholesterol while lowering their bad LDL and triglyceride levels. Again, this needs more research in humans, but it’s a exciting early sign that lemongrass oil could be a helpful add-on to standard diabetes care.
It Acts As a Natural Pain Reliever
Tired of popping NSAIDs for joint pain or muscle soreness? Lemongrass oil might be a gentler alternative. A 2017 study of people with rheumatoid arthritis found that applying diluted lemongrass oil topically to their affected joints reduced their pain levels over 30 days. On average, their pain scores dropped from 80% to 50%! The citral in the oil helps calm inflammation, which is what’s causing most of that achy discomfort in the first place.
It Eases Stress, Anxiety, and Depression Symptoms
Let’s talk mental health, shall we? A lot of us turn to aromatherapy when we’re feeling stressed out, and lemongrass oil is one of the most popular options right now. The bright, uplifting scent helps calm racing thoughts and lower cortisol, the stress hormone. Studies show that inhaling lemongrass oil either on its own or combined with a massage can significantly reduce feelings of anxiety and even mild depression. I keep a small bottle of it on my desk at work—one whiff and I’m instantly less frazzled after a back-to-back meeting marathon.
It Can Relieve Headaches & Migraines
Ever had a throbbing headache that just won’t quit? Australian researchers found that local lemongrass varieties can help ease migraine and headache pain, just like aspirin does. The oil contains a compound called eugenol that stops platelets from clumping together (which is one of the main triggers for migraines) and releases serotonin, the hormone that regulates mood, sleep, and pain. Try diluting a drop or two with a carrier oil and massaging it into your temples for quick relief during a headache.
How to Safely Use Lemongrass Essential Oil
Okay, now for the important part: how do you actually use this stuff without hurting yourself? First, a huge heads up: almost all of the scientific research on lemongrass oil has been done on animals or in lab dishes, not humans. There’s no official standard dose for any condition, and we don’t fully know how animal doses translate to people. Plus, essential oils are super concentrated—you should never apply them straight to your skin without diluting them first!
Here are the safest, most common ways to use lemongrass essential oil:
- Aromatherapy: Add 3-5 drops of lemongrass oil to a diffuser, or put a couple of drops on a cotton ball or handkerchief and inhale it directly. This is perfect for calming stress, clearing your sinuses, or just making your home smell amazing.
- Topical Massage: Always dilute the oil first! Mix up to 12 drops of lemongrass oil with 1 teaspoon of a carrier oil like coconut oil, sweet almond oil, or jojoba oil. You can rub this mixture into your skin for pain relief, or add it to a warm bath for a relaxing, spa-like experience. Never put undiluted oil on your skin—this can cause serious irritation or allergic reactions.
- DIY Cleaning Products: Add a few drops to your homemade all-purpose surface spray to kill bacteria and make your kitchen smell fresh. It’s great for cutting through grease on countertops and cutting boards too.
- Oral Care: Add one drop of lemongrass oil to a cup of water or your regular toothpaste to boost its antibacterial properties and freshen your breath. Just make sure you don’t swallow it!
One last big note: essential oils aren’t regulated by the FDA in the United States, so it can be hard to tell if you’re getting a pure, high-quality product. Stick to brands you trust, and look for third-party testing labels to make sure you’re not getting diluted or fake oil.
Potential Side Effects & Risks of Lemongrass Essential Oil
As much as we love lemongrass oil, it’s not totally risk-free. Since it’s so concentrated, it can be stronger than using the dried herb directly, and some people will have reactions to it.
Here are the most common side effects to watch out for:
- Skin irritation: Undiluted oil can cause redness, itching, or a rash. Always do a patch test before using a new topical mixture! Put a tiny bit of diluted oil on your inner elbow, wait 24 hours, and see if you have any reaction before using it more widely.
- Allergic reactions: Some people are just allergic to lemongrass specifically. If you start itching, swelling, or having trouble breathing after using it, stop immediately and wash the oil off with soap and water.
- Digestive issues: If you accidentally swallow undiluted oil or take too much orally, you might feel dizzy, sleepy, or have increased urination or appetite. Seriously, don’t ingest lemongrass essential oil unless a doctor tells you to! The dried herb used in tea is safe in small amounts, but the concentrated oil is a different story.
You should also talk to your doctor before using lemongrass oil if you:
- Have diabetes or low blood sugar (it can lower blood sugar levels, which might interact with your meds)
- Have asthma or another respiratory condition
- Have liver disease
- Are undergoing chemotherapy
- Are pregnant or breastfeeding
Never use lemongrass essential oil as a replacement for regular medical care, and always check with a healthcare provider before adding any new supplement or essential oil to your routine, especially if you have pre-existing health conditions.
Final Thoughts
Lemongrass essential oil is a versatile, affordable natural product with a ton of potential benefits, from killing bacteria to calming stress and easing joint pain. That said, we still need more human studies to fully understand how safe and effective it is for most conditions, and it’s important to use it carefully to avoid irritation or other side effects.
If you want to try it out but are nervous about using the pure oil, start slow! Steep some dried lemongrass leaves in hot water for a cozy, stomach-soothing tea first, then work your way up to a diluted topical oil or diffuser blend. And always remember: when in doubt, check with your doctor before trying anything new.
At the end of the day, lemongrass oil is just another tool in your natural health toolkit—and it smells amazing while it’s working. Give it a try and see if it makes a difference in your daily routine!
