How to Make a Mouthwash Mosquito Repellent: A Simple Summer Solution

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If you're gearing up to host a summer gathering and find yourself unprepared for mosquitoes, don't stress—I've got an ingenious DIY solution for you: Listerine.


This everyday toiletry serves as an excellent backup plan when you need to fend off mosquitoes.


Let me walk you through how to create this homemade mosquito repellent with mouthwash, it's super simple!

Tools and Materials:

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Home remedies to deter mosquitoes

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1. Prepare Your Solution

Grab a spray bottle and fill it with one cup of mouthwash. The minty scent will not only freshen up your space but also repel those pesky mosquitoes.

2. Apply the Mouthwash Mosquito Repellent to Problem Areas

Identify areas in your backyard where mosquitoes tend to congregate. Give these spots a good misting with the Listerine solution. Be sure to spray all nearby surfaces, including the air around you.


3. Protect Your Skin

To keep mosquitoes from biting you, lightly mist your skin with the mixture. Allow it to dry for about a minute before heading back into the outdoor fun.

Mouthwash spray for mosquitoes

Maintenance Tip:

Keep your mouthwash mosquito repellent handy outdoors, as the effects typically last for about 30-40 minutes. When you start feeling those mosquito bites again, simply reapply the solution as needed.


Upgrade Your Mosquito Defense Strategy!

Discover how to supercharge your Listerine spray with beer and epsom salts in this enhanced mosquito deterrent project!


Homemade Mosquito Repellent with Mouthwash Tutorial

Who knew that a bottle of Listerine could be the secret you needed to keep mosquitoes away?


With this simple DIY hack, you can enjoy your outdoor gatherings without the nuisance of buzzing insects. Give it a try and let me know how it works for you!


Disclaimer: This mosquito mouthwash repellent is intended for temporary relief and may not be as effective as commercial mosquito repellents. Please use caution and discretion when applying any home remedy for pest control.

Frequently asked questions
Have a question about this project?
3 of 24 questions
  • Nelly Nelly on Aug 05, 2025

    Multiple fact checks and expert sources note that while Listerine and some generic mouthwashes contain small amounts of essential oils like eucalyptol and menthol—compounds known to have some insect-repelling properties—the concentrations are far too low (less than 1%) to provide meaningful or lasting protection against mosquitoes.

    Clinical studies that found essential oils to be effective as repellents used much higher concentrations of these oils (often 10–75%), which is far greater than what is found in mouthwash

    . Additionally, the alcohol and water base in mouthwash causes it to evaporate quickly. Did anyone really find this method really works?

  • Off228859924 Off228859924 on Apr 14, 2026

    It says to spray the mixture but the ingredient is just mouthwash. Something missing?

  • Kenneth B. Kenneth B. on Apr 20, 2026

    Does it repel any other bugs?

Comments
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2 of 41 comments
  • Gloria Mahoney Gloria Mahoney on Apr 19, 2026

    I find it confusing that in one picture, you are spraying lavender with that- lavender is a mosquito repellant all on its own.

  • Oqu209782063 Oqu209782063 on Apr 19, 2026

    I have used this for years. Especially when weed pulling. I lived 1 block off the Mississippi River, you can trust me, this WORKS! Either one, Original or Minty.

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