Lavender (Lavandula angustifolia) is an evergreen plant native to the Mediterranean. Its flower and oil have a popular scent and are also used as medicine.
Lavender contains an oil that seems to have calming effects and might relax certain muscles. It also seems to have antibacterial and antifungal effects.
People commonly use lavender for anxiety, stress, insomnia, depression, dementia, pain, and many other conditions, but there is no good scientific evidence to support many of these uses.
- Anxiety.  Orally, a specific lavender oil product (Silexan) seems to improve anxiety in some patients. Lavender oil aromatherapy and aromatherapy massage also seem to improve chronic and situational anxiety in some patients.
Login for details - Depression.  Oral lavender, in the form of tea, tincture, powder, or a specific oil (Silexan), seems to reduce depressive symptoms in some patients. Early research also shows that lavender oil aromatherapy seems to improve symptoms of depression.
Login for details - Dysmenorrhea.  Limited clinical research suggests that lavender oil aromatherapy might reduce dysmenorrhea symptoms.
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- Cancer-related pain.  Using lavender oil for massage or as an aromatherapy diffusion does not seem to provide any additional pain relief in patients with advanced or terminal cancer.
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- Alopecia areata.  Topical lavender oil has only been evaluated in combination with other ingredients; its effect when used alone is unclear.
Login for details - Atopic dermatitis (eczema). Login for details
- Burns.  It is unclear whether lavender oil aromatherapy is beneficial as adjunct treatment for reducing pain associated with dressing changes in children with burns.
Login for details - Canker sores.  Topical lavender oil might improve canker sore healing and reduce swelling and pain.
Login for details - Colic.  It is unclear whether lavender oil aromatherapy massage is beneficial for reducing colic symptoms in infants.
Login for details - Coronary artery bypass graft (CABG) surgery.  Small clinical studies suggest that lavender aromatherapy might modestly improve sleep and reduce pain in patients who have undergone CABG surgery.
Login for details - Coronavirus disease 2019 (COVID-19).  It is unclear if oral lavender is beneficial for olfactory dysfunction in patients with COVID-19.
Login for details - Dementia.  Small clinical studies suggest that diffused aromatherapy with lavender oil may modestly improve agitation symptoms in patients with dementia; however, lavender oil applied to the patient or the patient's clothes might not be beneficial.
Login for details - Diabetic neuropathy.  It is unclear if lavender aromatherapy massage is beneficial for diabetic neuropathy.
Login for details - Fall prevention.  It is unclear if lavender aromatherapy prevents falls in elderly patients.
Login for details - Fatigue.  Small clinical studies suggest that lavender aromatherapy may modestly reduce fatigue in patients with underlying medical conditions, such as kidney failure or heart disease. The effects of lavender for fatigue in otherwise healthy adults is unclear.
Login for details - Hypertension. Login for details
- Insect repellent. Login for details
- Insomnia.  Inhalation aromatherapy or aromatherapy massage with lavender oil may improve some subjective measures of sleep, but results are conflicting and improvements appear minimal at best. Additionally, most small clinical studies suggest it does not improve sleep in hospitalized patients.
Login for details - Kidney failure.  Small clinical studies suggest that lavender aromatherapy may modestly reduce fatigue and improve sleep quality in adults receiving hemodialysis. Lavender oil massage may also modestly improve symptoms of restless leg syndrome (RLS) in these patients.
Login for details - Labor pain.  Lavender aromatherapy may help to reduce pain during childbirth.
Login for details - Lice.  Topical lavender oil has only been evaluated in combination with other essential oils; its effect when used alone is unclear.
Login for details - Menopausal symptoms.  It is unclear if lavender aromatherapy reduces menopausal symptoms such as hot flushes.
Login for details - Migraine headache.  It is unclear if lavender aromatherapy improves migraine symptoms.
Login for details - Multiple sclerosis (MS).  It is unclear if lavender aromatherapy can improve memory in patients with MS.
Login for details - Multiple sclerosis-related fatigue.  It is unclear if oral lavender is beneficial for reducing fatigue in adults with multiple sclerosis (MS).
Login for details - Neuropathic pain. Login for details
- Osteoarthritis.  It is unclear if lavender aromatherapy with massage reduces osteoarthritis pain.
Login for details - Otitis media.  Topical lavender oil has only been evaluated in combination with other essential oils; its effect when used alone is unclear.
Login for details - Pain (acute).  Small clinical studies suggest that lavender aromatherapy may modestly reduce acute pain from needle insertion or other procedures in infants and adults.
Login for details - Postdural puncture headache.  It is unclear if lavender aromatherapy improves postdural puncture headache severity.
Login for details - Postoperative nausea and vomiting (PONV).  It is unclear if lavender aromatherapy reduces PONV.
Login for details - Postoperative pain.  The evidence for the use of lavender aromatherapy for pain after various types of surgical procedures is preliminary and conflicting.
Login for details - Postpartum complications.  It is unclear if topical or inhaled lavender reduces postpartum complications such as pain and swelling.
Login for details - Postpartum depression.  Small clinical studies suggest that aromatherapy with lavender oil may modestly improve or prevent depressive symptoms in postpartum patients.
Login for details - Pre-procedural anxiety.  It is unclear if lavender aromatherapy can reduce preoperative or preprocedural anxiety; results from clinical research are generally of low-quality and benefits are modest at best.
Login for details - Psychological well-being.  It is unclear if topical or inhaled lavender improves well-being.
Login for details - Restless legs syndrome (RLS).  Most preliminary clinical research suggests that lavender oil aromatherapy massage is beneficial for RLS in patients undergoing hemodialysis. Its effect in other patient populations is unclear.
Login for details - Stress.  Small studies suggest that inhaled lavender oil does not reduce stress in students under academic stress.
Login for details - Toothache. Login for details
When taken by mouth: Lavender is commonly consumed in foods. It's possibly safe when taken as medicine. Side effects might include constipation, diarrhea, and headache.
When applied to the skin: Lavender is possibly safe. It's usually well-tolerated, but can sometimes cause skin irritation.
When inhaled: Lavender essential oil is possibly safe. It's been used safely as aromatherapy for up to 12 weeks.
Special Precautions & Warnings:
Pregnancy and breast-feeding: There isn't enough reliable information to know if lavender is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use.Children: Lavender essential oil is possibly safe when inhaled as aromatherapy. But applying products that contain lavender oil to the skin is possibly unsafe for young males who haven't reached puberty. Lavender oil seems to have hormone-like effects that could disrupt normal hormones. In some cases, this has resulted in breast growth. There isn't enough reliable information to know if lavender is safe for children to take by mouth.
Surgery: Lavender might slow down the central nervous system. If used with anesthesia and other medications given during and after surgery, it might slow down the central nervous system too much. Stop using lavender at least 2 weeks before a scheduled surgery.
Sedative medications (CNS depressants)
Interaction Rating=Moderate Be cautious with this combination.
Lavender might cause sleepiness and slowed breathing. Some medications, called sedatives, can also cause sleepiness and slowed breathing. Taking lavender with sedative medications might cause breathing problems and/or too much sleepiness.
Herbs and supplements that might cause sleepiness: Lavender might cause sleepiness and slowed breathing. Taking it along with other supplements with similar effects might cause too much sleepiness and/or slowed breathing in some people. Examples of supplements with this effect include hops, kava, L-tryptophan, melatonin, and valerian.
There are no known interactions with foods.
Lavender is used in many different types of products. A specific lavender oil product (Silexan) has most often been used by adults in doses of 80-160 mg by mouth daily for up to 10 weeks. Lavender essential oil is commonly used in aromatherapy and various topical products such as massage oils and lotions. Speak with a healthcare provider to find out what type of product and dose might be best for a specific condition.
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