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/ Source: Today
By Jordan Muto

When it comes cleaning hairbrushes, there’s something we can all probably admit: We rarely ever do it.

That round cylinder or rectangle paddle with tiny little spikes (aka bristles) that you store in your bathroom actually plays a pretty important role in determining whether you'll have a good or bad hair day.

“Hairbrushes keep the outer layer of the hair smooth and help redistribute oil from the scalp, but they don’t work as well when they’re filled with hair," Dr. Melissa Piliang, a dermatologist specializing in hair loss at the Cleveland Clinic, told TODAY.

But it’s not simply hair that the brush fills with over time. Imagine that each time you use a hair product, it coats each strand. So when you go to use your brush afterward, say, to polish up your look after work, the brush is also picking up residue from the products.

“A clean brush is important because you don’t want scalp and hair residue on your brush to be applied back on top of clean hair,” wrote J.B. Shelton, hairstylist and strength specialist for Bosely Professional in an email to TODAY. “Think of the exfoliating power of your brush; that dead skin stays on bristles and pad of brush if not removed. Yuck!”

Now the questions arises, how often should you clean it?

Check out our interactive guide to learn how to clean your home from top to bottom.

How often should you clean your hairbrushes?

Dr. Piliang recommends the average person clean their brush every one to two weeks. For those with longer hair, however, she recommends doing this more frequently. And if you use products, a sure sign that it’s time to clean you brush is if you start to see residue form on the bristles.

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How to clean hairbrushes:

What you'll need:

What you'll do:

  1. Use a rat tail comb to pull the hair out of the brush. If you have a round brush, she recommends using scissors to snip the clumps of hair on both sides, so that they can easily be removed.
  2. Fill a large bowl with warm water and mild shampoo.
  3. Swish the brush around in the water.
  4. Place the brush bristle side down on a towel and let it dry.

To make this process easier, Shelton suggests that you remove loose hair from the brush regularly, at least three to four times per week. He also recommends that those who use their brushes quite often, or even share it with multiple people, use a sanitizing spray. Shelton DIYs this by using one part water and one part barbicide in a spray bottle and spritzing after each of his clients. For someone at home, he suggests using this spray one to two times per week.

Using interviews with specialists, online reviews and personal experience, TODAY editors, writers and experts take care to recommend items we really like and hope you’ll enjoy! TODAY does have affiliate relationships with various online retailers. So, while every product is independently selected, if you buy something through our links, we may get a small share of the revenue.

How often should you brush your hair?

If you're now worried about gunk on your brush, don’t panic. It turns out you actually don’t need to brush your hair that often.

“The Marcia Brady rule that you have to brush a 100 times a day is not true,” said Piliang. “Just brush in the morning and before bed. You don’t want to over brush because that damages the hair.”

What kind of hairbrush should you use?

Both experts agree that the type of brush you use is equally as important to how clean it is in terms of your hair health. It's important to pick the best hairbrush for your hair type.

For wet hair, either a wet brush or wide-tooth comb will do the trick. Shelton likes wet brushes because the flexible bristles help detangle while Piliang likes a wide-tooth comb, especially when used with conditioner in the shower, because it pulls the hair less.

If you’re using a blow dryer, Piliang recommends finding a brush with a ceramic or ion center as they help the hair dry faster, giving it less exposure to heat.

For everyday use, Shelton is a fan of boar-bristle brushes because they're smoothing, but admits that these pricier varieties aren't an absolute necessity.

There is one type of brush you should steer clear of, according to Shelton. Metal bristles "will tear your hair up,” he explained.

And once you find the right brush for your hair, know when it's time to let go and replace it.

When should you replace your hairbrush?

Both Shelton and Piliang agree that once you start to see missing or bent bristles or can’t seem to get it clean, it’s time to say goodbye and send it off to the place where everyday is a good hair day.

This article was originally published on Feb. 15. 2016.