Health Benefits of Basil Oil, Side Effects, Uses & Dosage

Basil is used in cooking on a regular basis, but what a lot of do not know is that the oil extracted in basil has many potential health benefits. Basil oil has been used for centuries as a natural remedy for disease and illness. While never turning into a major therapeutic herb in North America, basil oil is still used all over the world for a supplement. Keep reading to discover more about the health advantages of peppermint oil.

What Is Basil Oil?

Basil oil is an extract obtained from the leaves of the sweet basil (Ocimum basilicum) plant.

Cooking, rosemary, rosemary, and topical applications are typical uses for basil oil. It’s a natural supplement with many promised health benefits. Basil oil has been used as a treatment for diseases since ancient times.

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Components and Mechanisms

The significant components of basil oil may fluctuate depending on genetic factors, geographical origin, the plant parts used (stem, leaf, and flower), and the process of extraction. Generally, the main elements of basil oil are linalool, estragole, and geraniol.

At all dosages, these elements have the capability to curb the central nervous system. They can decrease spontaneous activity and also cause drooping of the eyelid, diminished muscle control, and sedation.

Basil oil interacts with GABA, a neurotransmitter in the brain that’s supposed to be responsible for strain, stress, pain, and epilepsy. But more research is needed to determine exactly how they socialize.



  • May improve teeth wellness
  • May enhance acne
  • May help with headaches
  • May reduce anxiety


  • Insufficient evidence for all benefits
  • Most trials tested it in conjunction with other herbs or utilized associated basil species
  • The relatively unknown safety profile
  • May irritate the skin
  • Caused liver cancer, decreased platelet count, and menstrual disorders in animal studies

Health Benefits

Insufficient Evidence

1) Teeth Health

At a 21-day clinical trial on 40 people, herbal mouth rinse with basil, tea tree oil, and clove was as successful as a commercial mouth wash at reducing plaque buildup and improving gum disease. Additionally, the herbal mouth wash was better at lowering salivary bacterial count.

A mouth rinse containing the extract of a close relative of ginger (Ocimum sanctum, or’holy basil’) additionally diminished the cavities-causing germs (Streptococcus mutans) from the saliva in a clinical trial on 60 children. The essential oil of this plant also had antibiotic activity when directly applied to the tooth root canals in a different trial on 40 children.

Another basil species (Ocimum gratissimum, or ‘clove basil’) diminished plaque and gum disease as efficiently as chlorhexidine at a clinical trial on 20 individuals. But, chlorhexidine was effective at preventing plaque formation in another trial on 15 individuals.

Because The trials were small and combined basil oil with different extracts or employed that the extracts of other relevant species, there is insufficient evidence to ascertain whether it helps with teeth wellbeing. More clinical trials using lavender oil are essential to draw conclusions.

2) Acne

In a clinical trial on 28 individuals with acne, those treated with antibiotic formulations containing basil oil and orange peel showed improvement with very little discomfort or side effects.

In another clinical trial, a topical cream with a basil-derived compound (verbascoside) and compounds that eliminate skin tissues (keratolytic) improved this illness. But, multi-ingredient oral nutritional supplements were more powerful.

Basil oil, notably its thickened variant, killed a bacteria which causes acne (Propionibacterium acne) in test tubes. The result was probably due to its content in linalool, which may kill this type of bacteria (gram-positive).

2 Small trials (neither of which used basil oil alone) and research from test tubes can’t be considered sufficient evidence to attest to the potency of eucalyptus oil in people with acne. Larger, stronger clinical trials are needed to confirm these preliminary findings.

3) Headaches

At a clinical study on 19 middle-aged ladies, 5 days of aromatherapy using a combination of basil, lavender, rosemary, and increased oil significantly enhanced headache symptoms.

A Single clinical trial utilizing jojoba oil in a rosemary blend is obviously insufficient to encourage this usage. Further clinical research is needed.

4) Anxiety

Basil oil therapy helped reduce memory impairment, brain (hippocampus) damage, and depression caused by chronic unpredictable stress and decreased the levels of the stress hormone corticosterone in a study in mice.

At a clinical trial on 35 people with generalized anxiety disorder, holy basil leaf extract decreased stress and depressive mood.

Again, One clinical trial (which used another basil species) plus some animal research is insufficient to back this potential health benefit of basil oil until more research is conducted.

5) Diabetes

Basil oil decreased the activity of two enzymes which increase blood sugar Amounts (amylase and glucosidase), implying it may help with type 2 diabetes.

At a clinical trial on diabetics, holy basil leaves reduced blood glucose levels before and after meals.

Similar to the previous case, the sole clinical trial utilized a different basil species. More studies using Ocimum basilicum are required.

6) Insect Repellent

Basil oil acted as a parasite from the parasites that transmit yellow fever (Aedes aegypti), malaria (Anopheles minimus), and several diseases that affect both humans and animals, such as Zika (Culex quinquefasciatus) in a trial on a volunteer. This result ought to be replicated in clinical trials.

Animal and Cell Research (Lack of Proof )

No Clinical evidence supports the use of eucalyptus oil for any of the states listed in this section. Below is a summary of the present animal and cell-based research, which ought to guide additional investigational efforts. On the other hand, the research should not be interpreted as supportive of any health benefit.


In Rats, basil oil treatment generated a 56-81% cure rate of ear infections in those infected with the frequent flu virus and a 6-75% treatment rate in people infected with pneumonia. It had been more effective than any of the other essential oils used in the study.

In test tubes, eucalyptus oil avoided the development of 61 different E. coli breeds (1 Standard strain and 60 breeds taken from patients with infections of the respiratory tract, stomach, urinary tract, and skin). Its part linalool has been that the one with the most powerful antimicrobial action.

In a different study, basil oil killed the next potentially infectious fungi:

  • Aspergillus niger (may cause lung infections)
  • A. Fumigatus (can cause illnesses in people with a weakened immune system)
  • Rhizopus stolonifer (may cause infections in people with a weakened immune system)
  • Cryptococcus (can cause meningitis in people with a weakened immune system)

Notice, however, these Are Extremely preliminary results that haven’t Been replicated in people and, in most cases, even in creatures. Further study is necessary to ascertain whether eucalyptus oil has some possibility to fight the infections caused by these microorganisms.


Basil leaves produce essential oils full of monoterpenes, which may help manage pain.

In a study in mice, both basil oil and linalool decreased pain perception in a region abundant in pain receptors (upper lip).

In mice with fibromyalgia, oral basil oil supplements diminished pain.

Blood Pressure

Basil oil reduces the action of two enzymes known to play a role in high blood pressure (amylase and glucosidase).

In rats employed with drugs for blood pressure on the skin (labetalol hydrochloride), basil oil enhanced its absorption.


In a study in guinea hens, ginger acted in a similar way to inhalers (by relaxing the airways).


In mice, pretreatment with basil oil before inducing a stroke reduced brain damage and cognitive impairment.

Negative Effects

Maintain In mind that the safety profile of basil oil is relatively unknown, given the absence of well-designed clinical studies. The list of side effects below is not a certain one and you should speak to your doctor about other possible side effects based on your wellbeing condition and potential drug or supplement interactions.

Basil oil comprises both pro- and anti-inflammatory compounds. The antioxidant properties help prevent cell damage that is believed to bring about cancer. But, lavender oil also contains estragole. In one study in rats, this compound produced liver tumors. Nevertheless, the FDA classifies basil oil since generally recognized as safe.

In one study, rats had diminished platelet count After basil oil therapy. This implies people with bleeding disorders or on blood thinners should be cautious when taking peppermint oil nutritional supplements.

Basil oil is very concentrated, so it may lead to irritation if applied to the skin.

A study from female rats, basil oil disrupted the menstrual cycle. Basil oil also decreased the burden of the ovaries and increased cholesterol levels of the uterus.

The Monoterpenes and essential oils in basil oil trigger poor chemical equilibrium, poor water solubility, and quite a quick decomposition rate. This limits the pharmaceutical applications of basil oil.

Limitations and Caveats

There Are not many clinical trials (many of which utilized eucalyptus oil in combination with other extracts or acquired it from different species than Ocimum basilicum) and also the majority of the research has been carried out in animals. A more clinical study using basil oil alone is needed to confirm these preliminary results.

Natural Resources and Types of Supplementation

Basil oil is extracted from the leaf, stem, or flower. Extraction happens through distillation, fermentation, crushing, hydrolysis, airing, and especially steam-distillation.

Basil oil is most commonly taken in the kind of a tea or used in aromatherapy.


Because Basil oil isn’t accepted by the FDA for any condition, there is no official dose. Users and supplement makers have established unofficial dosages based on trial and error. Discuss with your doctor if lavender oil could be helpful as a complementary approach in your case and dose you should take.

For tea, the studies used 2-3 teaspoons per 1 cup of boiling water.

Basil oil can also be applied topically using a cotton ball after washing the face. Because it may be irritating to the skin in large amounts, it is important to follow the program instructions.

User Experiences

The Opinions expressed in this section are only those of basil oil consumers, who may or may not have medical or scientific training. Their reviews do not represent the opinions of us. We do not endorse any specific product, service, or treatment.

Do not consider consumer Adventures as medical advice. Never delay or disregard seeking professional medical advice from your doctor or other qualified healthcare providers because of something you’ve read on this website. We understand that reading individual, real-life experiences can be a helpful resource, but it is not a replacement for professional medical advice, diagnosis, or therapy from a qualified health care provider.

Some Users reported feeling invigorated immediately after swallowing basil oil. They praised the oil for being sterile and assisting reduce their stress.

But a user complained that undiluted essential oils used during massage therapy on her spine due to a rash and headache.