How to Use Isopropyl Alcohol as a Deodorant

Reviewed by Barbie Ritzman

Last Updated: March 8, 2025

Believe it or not, isopropyl alcohol makes a phenomenal deodorant! It’s naturally antibacterial, so the alcohol kills off all kinds of germs and bugs that can cause underarms to smell. On top of that, it’s super cheap compared to commercial deodorants. In this article, we’ll show you how to use alcohol as a deodorant.

1

Buy a bottle of 99% isopropyl alcohol.

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You can purchase isopropyl alcohol at a pharmacy or corner store. Any brand should work just fine for this.
- Before you go any further, do a spot test on your skin to confirm you won’t have any adverse reactions.^{[1]
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  Barbie Ritzman
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2

Pour the alcohol directly into a spray bottle.

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It’s hard to apply the alcohol straight from the bottle, so fill a small spray bottle to contain your deodorant.

3

Spray each underarm with the alcohol.

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This should keep your underarms smelling fresh. Reapply the alcohol whenever you feel like you need a little refreshing.
- Avoid using the alcohol after shaving your armpits. The alcohol may sting and cause skin irritation.^{[2]
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  Expert Source
  
  Barbie Ritzman
  Beauty & Skincare Specialist
  
  Expert Interview}

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Tips

The isopropyl alcohol spray can be effective in treating and/or eliminating other bacterial-affected areas of the body as well.

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Grain alcohol can also work, but it is illegal in some states.

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Test each such area with a small amount of spray for possible skin sensitivity.

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Warnings

It can be used as an antiseptic.

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Use only in a well-ventilated area; fumes may be harmful.

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It is highly flammable and must be kept away from heat, spark, electrical, fire or flame.

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Some skin areas may be sensitive to isopropyl alcohol.

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Isopropyl alcohol is for topical antimicrobial use only.

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