How To Dilute Peppermint Oil

Peppermint oil is a potent essential oil which can be used in versatile ways and with a wide range of applications. These range from soothing sore muscles to invigorating your scalp. Its refreshing fragrance and cooling sensation make it a favorite in many beauty and health routines. Its important to be aware of how to properly use and dilute peppermint oil in order to reap its benefits. 


Why Does Peppermint Oil Need to be Diluted?

Peppermint oil stands out as one of the most powerful essential oils due to its composition, which includes volatile compounds like menthol, menthone, cineol, and pulegone. Because of its potency, it's essential to dilute peppermint oil before any topical application. Applying it undiluted can lead to skin irritation and allergic reactions, making proper dilution a necessary step for safe use.

In more severe cases, improper dilution of peppermint oil can pose respiratory risks, especially for individuals with heightened sensitivity. While such occurrences are rare, they highlight the importance of using this essential oil correctly. Always ensure peppermint oil is properly diluted to avoid these potential adverse effects.

Best Way to Dilute Peppermint Oil?

To safely dilute peppermint oil for topical use, the recommended ratio for adults is typically 2%. This means you should mix 2 drops of peppermint oil with 1 teaspoon (approximately 5 ml or 100 drops) of a carrier oil. Using a dropper makes this process straightforward and precise.

If you prefer a slightly stronger dilution, you can increase the concentration to 3% by adding an extra drop of peppermint oil to the same amount of carrier oil. This adjustment can be just as effective for many people.

Choosing the Right Carrier Oil

When selecting a carrier oil to mix with peppermint oil, look for products labeled as 'cold-pressed' or 'organic.' These labels indicate minimal processing, preserving the oils' beneficial minerals and vitamins.

For optimal absorption and aromatherapeutic benefits, choose light to medium-weight carrier oils. Here are some excellent options:

  • Canola Oil
  • Corn Oil
  • Grapeseed Oil
  • Safflower Oil
  • Sesame Oil
  • Soy Oil
  • Sunflower Oil
  • Sweet Almond Oil
  • Walnut Oil

These oils are ideal for helping peppermint oil absorb quickly into the skin, enhancing its therapeutic effects.

How to Dilute Peppermint Oil for Skin?

Diluting peppermint oil for skin application is straightforward and ensures safe usage. Follow this detailed guide to get it right:

  1. Gather Your Ingredients: Start by assembling your peppermint essential oil and your chosen carrier oil. Popular carrier oils include coconut, jojoba, or almond oil.
  2. Prepare Your Mixing Tools: You will need a small bowl for mixing the oils together.
  3. Measure the Carrier Oil: Pour 10ml of your carrier oil into the mixing bowl.
  4. Add Peppermint Oil: Carefully add 5 drops of peppermint essential oil to the carrier oil.
  5. Mix Thoroughly: Stir the mixture well to ensure the oils are fully combined.
  6. Patch Test: If you haven’t used peppermint oil before, perform a patch test to ensure there’s no adverse reaction. Apply a small amount to a hidden area of your skin and wait 24 hours to check for any irritation.
  7. Application: Once the patch test is complete and you’re confident it’s safe for your skin, you can apply the diluted oil mixture to the desired area. For larger batches, maintain the same ratio—add 50 drops of peppermint oil to 100ml of carrier oil.

What are Alternatives to Carrier Oils?

While carrier oils are the most common method for diluting peppermint oil, there are other effective alternatives:

  • Creams and Lotions: Mix a few drops of peppermint oil into your favorite cream or lotion. This thick consistency can help prevent skin irritation.
  • Shampoo and Conditioner: Add a few drops of peppermint oil to your regular shampoo or conditioner to enjoy the benefits of peppermint oil on your scalp. This can help invigorate your scalp and promote a healthy hair environment.

Can you dilute peppermint oil with water to drink?

Yes, you can. For a hot drink, boil a cup of water, pour it into a mug, and add two to three drops of peppermint oil. For a refreshing cold drink, add one drop of peppermint oil to a glass of cold water. Always ensure the oil is food-grade and use sparingly.

How to dilute peppermint oil for your skin?

To safely dilute peppermint oil for your skin, start by mixing 10ml of your favorite carrier oil (like coconut or jojoba) with 5 drops of peppermint essential oil in a small bowl. Stir thoroughly to ensure an even blend. Do a patch test on a small skin area to check for any irritation before applying it more broadly to ensure you get the benefits without the risk of skin irritation.

Is diluted peppermint oil safe?

When properly diluted, peppermint essential oil is generally safe for topical use. Only a few drops are needed per ounce of carrier oil. However, even when diluted, peppermint oil can sometimes cause skin irritation or a rash in sensitive individuals. 

What happens if you don't dilute peppermint oil?

Undiluted peppermint oil is extremely potent and can cause a burning or tingling sensation on the skin, making your eyes water and nose run. Ingesting it undiluted can act as an intense diuretic. Always dilute peppermint oil to avoid irritation and adverse effects.

How much peppermint oil is toxic?

Ingesting 5-15 mL of peppermint oil is toxic for adults, though some have survived doses up to 9 grams. Overdose symptoms include slow or rapid breathing, abdominal pain, diarrhea, nausea, vomiting, blood in urine, no urine production, convulsions, depression, and dizziness. Always use peppermint oil cautiously.

Why Avoid Peppermint Oil During Pregnancy?

While peppermint oil might seem like a helpful remedy for easing nausea and vomiting during the first trimester, many experts advise against using essential oils during the initial 13 weeks of pregnancy. There is a small risk that essential oils, including peppermint, could cause uterine contractions, potentially affecting the baby adversely.

What not to do with peppermint oil?

Peppermint oil should never be applied to the face of infants or young children, as inhaling the menthol can cause serious side effects. Additionally, its safety during pregnancy or breastfeeding is not well-established, so it's best to avoid use during these times.

Why does peppermint oil burn?

Peppermint oil burns because it contains potent compounds like menthol, which can cause a tingling or burning sensation when applied undiluted. Its high concentration of active ingredients makes it essential to dilute peppermint oil before applying it to the skin to prevent irritation.


Understanding how to dilute peppermint oil correctly and knowing the potential risks ensures you can enjoy its therapeutic properties safely. Whether you're adding it to your beauty products or using it for its health benefits, peppermint oil can be a valuable addition to your daily regimen.

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Discover Key Ingredients

  • peppermint essential oil

    Creates a fresh smell and tingly sensation on the skin and scalp, helping to improve blood flow.

  • coconut oil

    Derived from coconuts, and milder than Sodium Lauryl Sulfate, while still producing a sudsy lather. It is safe for colored hair and helps the transition period from liquid to bar seamless.

  • sodium coco sulfate

    Derived from coconuts, and milder than Sodium Lauryl Sulfate, while still producing a sudsy lather. It is safe for colored hair and helps the transition period from liquid to bar seamless.

  • behentrimonium methosulfate

    Made from rapeseed oil, it is non-irritating and used to soften the hair and reduce static and frizz without causing build-up.

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