Myrrh oil may have benefits like killing bacteria or protecting oral health, but more research is needed. To try it, mix it with a carrier oil and apply it to the skin or inhale the aroma. You can also buy products like mouthwash or ointments that contain it.

You may be familiar with myrrh from Biblical stories even if you’re not sure what it is.

Myrrh is a reddish-brown dried sap from a thorny tree — Commiphora myrrha, also known as C. molmol — that is native to northeastern Africa and southwest Asia (1, 2).

A steam distillation process is used to extract myrrh essential oil, which is amber to brown in color and has an earthy scent (3).

Myrrh has long been used in traditional Chinese medicine and Ayurvedic medicine. Scientists are now testing the oil’s potential uses, including for pain, infections, and skin sores (4).

Here are 11 science-based health benefits and uses of myrrh essential oil.

1. Kills Harmful Bacteria

Ancient Egyptians used myrrh and other essential oils to embalm mummies, as the oils not only provide a nice scent but also slow decay. Scientists now know this is because the oils kill bacteria and other microbes (5).

Additionally, in Biblical times, myrrh incense — often in combination with frankincense — was burned in places of worship to help purify the air and prevent the spread of contagious diseases, including those caused by bacteria.

One recent study found that burning myrrh and frankincense incense reduced airborne bacterial counts by 68% (6).

Preliminary animal research suggests that myrrh can directly kill bacteria, as well as stimulate the immune system to make more white blood cells, which also kill bacteria (7).

In test-tube studies, myrrh oil has strong effects against several infectious bacteria, including some drug-resistant ones (3, 8, 9, 10).

In one test-tube study, myrrh oil at a low dilution of 0.1% killed all dormant Lyme disease bacteria, which can persist in some people after antibiotic treatment and continue to cause illness (11).

Still, more studies are needed to determine whether myrrh oil can treat persistent Lyme infections.

Summary Myrrh
oil has been used to kill harmful bacteria long before scientists discovered
that microbes cause contagious illnesses. It may have an impact on some
drug-resistant and Lyme disease bacteria.

2. May Support Oral Health

Due to its antimicrobial properties, myrrh has traditionally been used to treat oral infections and inflammation (12).

Some natural mouthwashes and toothpaste contain myrrh oil, which is approved as a flavoring by the FDA (13, 14).

What’s more, when people with Behcet’s disease — an inflammatory disorder — used a myrrh mouthwash to treat painful mouth sores four times daily for a week, 50% of them had complete pain relief and 19% had complete healing of their mouth sores (15).

Test-tube studies suggest that mouthwash containing myrrh oil may also help gingivitis, which is inflammation of the gums around your teeth due to a buildup of plaque (12).

Yet, more studies are needed to confirm these benefits.

Keep in mind that you should never swallow myrrh oral-care products, as high doses of myrrh can be toxic (15).

Additionally, if you have oral surgery, it may be best to avoid myrrh mouthwash during healing. A test-tube study found that stitches — especially silk ones — can degrade when exposed to myrrh, though they held up in the doses typically found in mouthwash (16).

Summary Some
natural mouthwashes and toothpastes contain myrrh oil, which may help relieve
mouth sores and gum inflammation. Never swallow these products.

3. Supports Skin Health and May Help Heal Sores

Traditional uses of myrrh include treating skin wounds and infections. Today, scientists are testing these applications (17).

One test-tube study of human skin cells found that an essential oil blend containing myrrh helped heal wounds (18).

Another study noted that myrrh and other essential oils applied via baths helped mothers heal skin wounds from vaginal deliveries (19).

However, multiple oils were used simultaneously in these studies, so the individual effects of myrrh for wound healing are unclear.

Specific studies on myrrh oil are more telling.

A test-tube study on 247 different essential oil combinations found that myrrh oil mixed with sandalwood oil was especially effective at killing microbes that infect skin wounds (20).

Additionally, in one test-tube study, myrrh oil alone inhibited 43–61% of the growth of five fungi that cause skin conditions, including ringworm and athlete’s foot (17).

Human research is needed to confirm these benefits. However, if you want to try myrrh for general skin health, many natural ointments and soaps contain it. You can also apply diluted myrrh oil directly on your skin.

Summary Applying
diluted myrrh oil on your skin may aid wound healing and fight microbes that
can cause infections. The oil may also deter the growth of skin fungi,
including ringworm and athlete’s foot.

4. Combats Pain and Swelling

Pain — such as headaches, joint pain and back pain — is a common complaint.

Myrrh oil contains compounds that interact with opioid receptors and tell your brain you’re not in pain. Myrrh also blocks the production of inflammatory chemicals that can lead to swelling and pain (1, 2, 21, 22).

When people prone to headaches took a multi-ingredient supplement containing myrrh’s pain-relieving compounds, their headache pain was reduced by about two-thirds during the six-month study (23).

Further research is needed to confirm these benefits. The supplement tested isn’t available in the US, and ingesting myrrh oil is not recommended.

You can buy myrrh-containing homeopathic rubbing oils and other essential oils meant to relieve pain when applied directly to sore body parts. However, these haven’t been studied.

Summary Myrrh
oil contains plant compounds that may temporarily relieve pain by signaling
your brain that you’re not in pain. It may also block your body’s production of
inflammatory chemicals that lead to swelling and pain.

5. May Be a Powerful Antioxidant

Myrrh may be a powerful antioxidant, a compound that combats oxidative damage.

Oxidative damage from free radicals contributes to aging and some diseases.

A test-tube study found that myrrh oil was more effective than vitamin E, a powerful antioxidant, at fighting free radicals (24, 25).

Additionally, in an animal study, myrrh oil helped protect the liver against lead-induced oxidative damage in direct proportion to the amount of myrrh given prior to lead exposure (26).

It isn’t known whether inhaling myrrh oil or applying it topically — which are two safe uses of myrrh oil for people — helps protect your body against oxidative damage.

Summary Test-tube
and animal studies show that myrrh oil is a powerful antioxidant and even more
effective than vitamin E. However, human studies are needed.

6. Kills Some Parasites

You can become infected with parasites from many sources, including pets, sexual activity and contaminated food or water (27).

Two common parasitic infections in the US are trichomoniasis, a sexually transmitted disease, and giardiasis, an intestinal infection (28, 29, 30).

In a preliminary study, women who failed to respond to standard drug treatment for trichomoniasis were given an oral drug, Mirazid, made of myrrh sap and its essential oil. About 85% of them were cured of the infection (31).

Additionally, an animal study found that the same myrrh drug effectively treated giardiasis (32).

Some human research suggests that this myrrh drug also may be effective against the parasite Fasciola gigantica, which can cause liver and bile duct diseases. However, other studies failed to see a benefit (33, 34, 35, 36).

Mirazid is not widely prescribed at this time.

Though more research is needed, myrrh and its oil may prove helpful for treating parasites, especially in cases of drug resistance. Ingesting myrrh oil is not advised, and long-term safety must be assessed (37).

Summary Preliminary
studies suggest that a myrrh-containing medicine may help treat some common
parasites, but more research on its effectiveness and safety is needed.

7–10. Other Potential Benefits

Scientists are testing other potential uses for myrrh oil and its beneficial compounds. The following applications are under study:

  1. Sunscreen: One test-tube
    study found that SPF 15 sunscreen with added myrrh oil was significantly
    more effective at blocking ultraviolet rays than the sunscreen alone. By
    itself, myrrh oil wasn’t as effective as the sunscreen (38).
  2. Cancer: Test-tube
    studies suggest that myrrh oil may help kill or slow the growth of cancer cells from the liver, prostate,
    breast, and skin. However, this hasn’t been tested in people (39, 40, 41).
  3. Gut health: One animal
    study indicates that myrrh compounds may help treat intestinal spasms
    related to irritable bowel syndrome. Another animal study suggests that
    myrrh may help treat stomach ulcers (42, 43).
  4. Mold: Test-tube studies note that myrrh
    oil may help kill mold, including Aspergillus niger, which commonly
    appears as mildew on damp walls, and A. flavus, which causes
    spoilage and mold contamination of food (3, 44).

Summary Scientists
are investigating other potential benefits of myrrh oil, including sunscreen
effectiveness, cancer treatment, digestive health, and mold elimination.

11. Simple to Use

Myrrh oil can be inhaled, applied topically, or used for oral care. It should not be swallowed.

Here are some general guidelines:

Topical Use

Due to the risk of skin irritation, it’s best to dilute myrrh oil in a carrier oil, such as jojoba, almond, grapeseed, or coconut oil. This also helps prevent the myrrh oil from evaporating too quickly (45).

In general, use 3–6 drops of essential oil per 1 teaspoon (5 ml) of carrier oil for adults. This is considered a 2–4% dilution. For children, use 1 drop of essential oil per 1 teaspoon (5 ml) of carrier oil, which is a 1% dilution.

You can also add a drop or two of myrrh oil to unscented lotion or moisturizer before you apply it to your skin. Some people add myrrh oil to products used for massage.

Avoid applying the oil to sensitive areas, including your eyes and inner ears. Wash your hands with soapy water after handling essential oils to avoid accidental exposure to delicate areas.

Inhaling

You can add 3–4 drops of myrrh oil to a diffuser to distribute the oil as a fine mist into the surrounding air.

If you don’t have a diffuser, you can simply place a few drops of the oil on a tissue or cloth and inhale periodically or add a few drops to hot water and inhale the steam.

One simple trick is to apply a few drops of myrrh oil to the cardboard tube inside a roll of toilet paper. When someone uses it, a bit of the aroma will be released.

Combinations

The earthy aroma of myrrh oil blends well with spicy, citrus, and floral essential oils, such as frankincense, lemon, and lavender, respectively.

The combination of myrrh and frankincense is especially popular — not only because of their complementary scents but also because of their synergy, or interaction that produces even greater benefits.

In test-tube studies, combined myrrh and frankincense oils improved their effectiveness against infectious bacteria and other microbes. About 11% of this improvement was due to synergistic interactions of the oils (46).

Summary You can
apply diluted myrrh oil to your skin, diffuse it, or use it orally. The oil can
be used alone or in combination with complementary oils, such as frankincense
and lemon.

Potential Risks

Like other essential oils, myrrh oil is very concentrated, so you only need a few drops at a time. Avoid diffusing it close to babies and young children, as it’s uncertain how much they’ll inhale and how much is safe.

Additionally, no one should swallow myrrh oil, as it can be toxic (15).

Some people should be especially cautious with myrrh oil and may need to avoid it entirely. Bear this in mind if any of the following conditions apply to you (45, 47):

  • Pregnancy and breastfeeding: Avoid myrrh oil
    if you’re pregnant, as it can cause uterine
    contractions and may trigger miscarriage. Also avoid myrrh oil if you’re
    breastfeeding, as its safety to your baby
    isn’t known.
  • Blood-thinning drugs: Don’t use myrrh
    if you’re taking blood thinners, such as warfarin, as myrrh could decrease
    their effectiveness.
  • Heart problems: Large amounts
    of myrrh may affect your heart rate, so use myrrh oil with caution if you
    have a heart condition.
  • Diabetes: If you’re taking
    diabetes medication, keep in mind that myrrh may lower blood sugar. Therefore, this combination
    could potentially result in blood sugar that’s too low.
  • Surgery: Myrrh may interfere with blood
    sugar control during and after surgery. Discontinue using myrrh products
    two weeks before surgery or as advised by your surgeon.

Summary If
you’re pregnant, have heart problems, are planning surgery, or take blood
thinners or diabetes medications, you may want to limit or avoid myrrh oil.

The Bottom Line

In addition to its pleasant, warm, and earthy scent, myrrh oil may also have several health benefits.

Studies suggest that it may help kill harmful bacteria, parasites, and other microbes. It may also support oral health, help heal skin sores, and ease pain and swelling.

However, the majority of these studies are in test tubes, animals, or small groups of people, so it’s difficult to make any firm conclusions about its benefits.

If you want to try myrrh oil, dilute it in a carrier oil and apply it to your skin, or diffuse it to inhale the aroma. You can also buy products, such as mouthwash and ointments, that contain the oil.