Did you ever realize that the mouthwash that you’ve been religiously using three times a day, after every brush, and sometimes, even keep in your pocket to keep your breath confidently fresh in between your official meets can actually, magically lighten your armpits? “Really?” Yeah, so many people end up exclaiming that very same word in surprise. Listerine underarms benefits are for real.

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What Is Listerine Doing In Peoples’ Underarms?

Apparently, the ever-reliable Listerine that protects you from embarrassing bad breath can also get your confidence back up in showing off your underarms. Below are just some of the possible causes of underarms that you should be aware now so that you can make the best of using Listerine for lightening your armpits by avoiding or, by finding means to more effectively control these:

  • Congenital or acquired skin conditions, including psoriasis, eczema, and allergies
  • Bacterial infections
  • Excessive sweating and skin rubbing causing friction
  • Accumulated dead skin cells
  • Harsh underarm products
  • Tight clothing, and rough textiles and seams
  • Hyperpigmentation
  • Shaving, plucking, and waxing
  • Presence of underlying health reasons, such as Addison’s Disease

Listerine, for all the marketing the whole world has received courtesy of its first owners, Lambert Pharmacal Company, later Warner-Lambert and, now, Johnson & Johnson, in fact, was never intended to be formulated and sold as a mouthwash. Listerine, which has successfully turned mouthwash into a basic necessity when it comes to oral health hygiene was, surprisingly enough, originally intended to be used as an antiseptic.

Listerine was developed by Dr. Joseph Lawrence who hails from St. Louis. He named the product after Dr. Joseph Lister who popularized the use of surgical dressings to reduce wound infections as early as 1865. Since then, until now, the active ingredients which all Listerine varieties are formulated with include eucalyptol, menthol, methyl salicylate, and thymol.

Although there has yet to be any scientific study to either prove or disprove the popular notion that Listerine serves a two-pronged function when it comes to caring for your underarms — the first being lightening dark underarms and the other to prevent body odor — there is reason to believe that it is, indeed, formulated to serve both functions well by the mere lineup of these four active ingredients.


The antiseptic nature of this ingredient combination makes Listerine capable of inhibiting and regulating the growth and proliferation of odor-causing germs which makes it a great alternative to your deodorant. As a skin lightening product, the most probable cause why there are satisfied users attesting to the underarm lightening property of Listerine is methyl salicylate. This compound is a derivative of salicylic acid, lauded as a beta hydroxy acid. As a BHA, methyl salicylate helps loosen up hardened debris on the surface of your skin which is likely made up of hardened dead skin cells, sweat, oils and other impurities. By facilitating exfoliation, methyl salicylate also promotes skin renewal and turnover. With regular use, skin becomes lighter as newer, lesser damaged skin rises to the surface to replace your old, damaged, and darkened skin.

How To Use Listerine To Lighten Underarms

Get smooth armpits that also become noticeably lighter with the regular use of Listerine. To use Listerine to whiten your underarms, follow these three simple steps:

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Step 1: Wash your armpits. Cleanse underarms with mild soap or a soap-free cleanser and clean water. Eliminate loose impurities to help facilitate a deeper, more thorough exfoliation with the use of Listerine. Use a dermal brush if you want to help loosen up the debris of impurities even more thoroughly.

Step 2: Apply Listerine. The best way to apply Listerine on your armpits is by dabbing a cotton ball or, a facial cotton soaked with Listerine. Make sure to cover the full surface of your armpits.

Step 3: Leave On. For a deeper, more thorough clean, simply dry and leave on for the rest of the day. If you know you have more sensitive or, chronically reactive skin, soak for your underarms with Listerine for no more than 10 minutes then, rinse off with lukewarm water.

Follow these steps consistently, day and night when you can but, at least once daily. Soon enough, you will notice the lighter skin on your underarms.

Are There Side Effects In Using Listerine For Underarms?

In general, menthol, eucalyptus, and salicylate can cause allergic reactions when these are allowed to get into contact with the skin. At lower concentrations, these may not cause any adverse skin reactions. However, people who are aware that they have sensitive and reactive skin issues must use Listerine on skin sparingly.

Listerine labels have also warned against the possibility of poisoning when accidentally ingested. So, make sure to keep your Listerine out of reach of very young children.

What Else Can You Do To Lighten Your Underarms?

When your Listerine underarm regimen does not seem to be working as fast as you’d like it to, you may always complement with one or more of the following solutions to help promote whiter underarms:

1. Use underarm lightening products. Many deodorant brands will have a variety that contains ingredients intended to lighten your underarms. To experience more significant improvements, however, you might need a skin lightening treatment cream which should contain higher concentrations of skin lightening ingredients such as retinol, AHAs, and BHAs.

2. Concoct a natural lemon juice. Squeeze the juice from half a lemon. Make sure to dilute with lukewarm water or, it can cause your skin to burn and worsen the darkening. Cleanse your underarms, pat dry and apply the diluted lemon over your underarms. Lemon has natural astringent properties that cause the skin to lighten.

3. Get a procedure. Laser skin resurfacing, Intense Pulsed Light Treatment and professionally administered chemical peels are a sure way to help boost the skin tone of your dark underarms. Follow pre- and post-procedure instructions carefully to make the most out of these procedures.


Dark underarms? There are a handful of solutions available and, your Listerine just opened up another possibility. However, even though many have tried it, the uncertainties and risks remain so, do yourself well by proceeding with caution.