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Can You Blow Dry Hair Extensions?

Kristie Leong M.D. is a family practitioner who believes in the power of nutrition and a healthy lifestyle to prevent and fight illness.

Hair extensions a beautiful way to add length, thickness, and color to your hair. Many celebrities use them to get the look of long hair for a special event and more ordinary people are discovering how transformative they can be.

Hair extensions can add length and volume to thinning hair or create a bold new style with long locks that cascade down your back. You can even choose from different colors and textures to match your natural hair or create an entirely different look altogether! They come in many forms from individual strands of real human hair to synthetic fibers that look like human hair.

If you wear hair extensions, you probably have questions about how to take care of them. For good reason! You want your extension to last as long as possible. One common question is how hair extensions respond to heat and whether you risk damaging them when you dry your hair.

Can You Blow Dry Hair Extensions?

Before you go under the heat to dry your extensions, there are some things you should know about how this keeping your hair extensions safe and free of damage.

Human hair extensions are not designed for blow dryers—they're made from human hair or synthetic hair and each piece has thousands of bonds holding it in place. The heat from a blow dryer can damage the bonds, leading to an increase in shedding, at worst, and tangling at best.

That heat is damaging should come as no surprise, A study found that high heat can change the structure of natural human hair and increase the risk of damage and breakage.

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Blow Drying Can Damage the Bonds That Hold Hair Extensions in Place

High heat and prolonged heat exposure are both risky to hair extensions, as they can damage the bonds that hold the extensions in place. This can cause the extension to weaken or fall out.

However, this doesn't mean you must avoid all heat. With proper care, it's safe to blow dry your extensions. Here are some tips for how to do that:

  • Use a heat protector spray before drying your hair, Avoid getting product on the scalp or skin around your head where the clips are attached (otherwise they might slip out). Use a low heat setting on your blow dryer.
  • If you have thick, full hair, use a paddle brush instead of a round brush so you don't overheat the extensions or pull them too tightly.
  • Blow dry your hair in sections, starting from the front and moving down the sides toward the back.
  • Keep the blow dryer as far from your hair extensions as possible to still get the job done. Keep the dryer moving to avoid heating up any one area of hair.
  • Once your hair is completely dry, smooth down any frizzies with some finishing spray.

Be aware that careless use of heat can damage your hair extensions. Blowing hot air directly onto the bonds where they attach to your scalp could melt them.This can happen quickly; just one or two minutes of exposure can be enough for this type of damage to occur. That’s why you should always use a low heat setting.

Be Gentle With Hair Extensions

Another way you could accidentally cause damage is using too much force when brushing or styling your tresses. Tugging and pulling at the bonds that hold your extensions in place could tear them loose from their mooring points.

Can You Blow Dry Hair Extensions?

Yes, it's possible to blow dry your hair extensions but with caution. Hair extensions are delicate, and you’ll need to treat them with care to maximize their longevity. So, keep the heat low and the time you apply heat to extensions as short as possible.

Have fun with your hair extensions! They're an easy way to add length, volume, and color to your own hair. But take care of them and don’t hit them with a blast of heat. ,so you can enjoy their beauty and the confidence they give you!


  • "Hair Extension Methods - Best Hair Extensions Pros and Cons | HEM."
  • Bories MF, Martini MC, Et MF, Cotte J. Effects of heat treatment on hair structure. Int J Cosmet Sci. 1984 Oct;6(5):201-11. doi: 10.1111/j.1467-2494.1984.tb00378.x. PMID: 19467113.
  • Lee Y, Kim YD, Hyun HJ, Pi LQ, Jin X, Lee WS. Hair shaft damage from heat and drying time of hair dryer. Ann Dermatol. 2011 Nov;23(4):455-62. doi: 10.5021/ad.2011.23.4.455. Epub 2011 Nov 3. PMID: 22148012; PMCID: PMC3229938.

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