What’s The Difference Between Cheap And Expensive Hair Dryers?

Professional hairstylists weigh in on whether a $400 Dyson Supersonic is really worth more than a $20 blow dryer.
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Are you blowing your money on a blowout that won't be all that much better?

There’s something supremely satisfying about walking out of a salon with a fresh blowout, voluminous hair falling just so after your hairstylist works their magic with a blow dryer and brush. 

Whether you’re looking to achieve a flawless at-home blowout or simply wanting to get the water out of your hair quickly, a hair dryer is a must. You can pick up a hair dryer for less than $20 at the drugstore, but if you’ve got your eye on the buzzy Dyson Supersonic hair dryer, it’ll set you back $400. What gives?

Pricier hair dryers often feature higher-quality attachments and more heat and speed settings.

When it comes to hair dryers, bells and whistles like attachments and different heat and speed settings can help you achieve different types of looks. 

For Lynsey Hemstreet, adjunct faculty in the cosmetology department at Skyline College in San Bruno, California, attachments like a nozzle and a diffuser are must-haves as they direct airflow in different ways. “A nozzle focuses the air like a blade and a diffuser makes the air into a cloud,” she said. A nozzle comes in handy if you’re trying to collapse curly hair into a smooth and straight style, while a diffuser is great for creating a warm environment for curls to achieve a natural spring and definition without creating frizz. 

While a cheaper hair dryer may come with these attachments, they’re likely to be of lower quality than what you’d find accompanying their more expensive counterparts. Hemstreet said that a lot of low-end dryers come with cheap attachments made of brittle plastic that can break easily or pop off the dryer during styling. On the super high-end side of things, the Dyson hair dryer’s attachments are magnetic, which decreases the chance of them breaking as they’re being put on or taken off.

A fancier, more expensive hair dryer will likely come with more heat and speed settings, which serve different purposes during the drying process. “When you’re starting off a blow-dry and you want to get a lot of water out of the hair, you want to use high heat and high speed just to cut through a lot of the dampness so that you can get to really styling the hair instead of drying it,” Hemstreet said. She tends to start a blow-dry with high heat and high speed, then turns down the heat and speed when it’s time to put in a curl or polish the look, sometimes opting for a cool shot as a finishing touch to set the style. “If I’m using a round brush for a style and I’ve got the hair mostly dry, I’ll wind it on the brush and use the cool shot to give that hair memory of my brush and really perfect the curl,” she said.

In general, more expensive hair dryers are lighter, last longer and dry your hair faster.

For Kelly McCarthy, stylist and colorist at Kelly McCarthy Hair in Chicago, these qualities are particularly important. “In the salon, time is not only money, but it is also seriously valued by the customer,” she said. “I am a fidgety client myself and being able to get in and out as fast as possible is key. Being able to provide a quick, beautiful blow-dry is a win-win for both the client and the stylist!” 

For the average consumer, a quicker drying time is valuable as it decreases the potential for damaging your hair. “Higher-quality tools that are equipped with better technology provide a much more efficient drying experience than less expensive options that essentially shoot out hot hair,” McCarthy said. Dryers outfitted with ceramic technology, for example, disperse heat more evenly and are more gentle on the hair. McCarthy pointed out that this is especially important for people with fine, damaged or color-treated hair. A less precise drying process generally takes longer, which may lead to damage with extended use.

Ursula Stephen, a celebrity hair stylist for A-Frame Agency, echoes this sentiment, adding that “most inexpensive dryers don’t have the technology that a higher-end dryer has. They push out a simpler, drier type of heat, which leaves the hair stiff and hard to style.” Ceramic blow dryers are her go-to as they offer “a delicate type of heat that seals moisture in and leaves the hair shiny and soft.”  

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Celebrity hair stylist Jen Atkin endorsed the Dyson Supersonic hair dryer at a Los Angeles event in 2016.

Weight is another key consideration. “Because most days I am seeing clients back-to-back, it is very easy to get physically exhausted by blow-dry after blow-dry,” McCarthy said. “There is nothing worse than dreading a blowout or not being able to give it your all when showing your client their beautiful new color or style! To avoid burnout and pain (which may lead to carpal tunnel), the weight of the dryer is very important.” 

McCarthy noted that the pricey Dyson hair dryer is an excellent option for salon use, as the motor is located in the handle (whereas most conventional blow dryers have their motors in the head). “This increases control and balance in your hand and arm, taking the weight off of your wrist,” she said. “As I don’t have a ton of hair that requires a lot of time or tension to blow out, this quality is less important when shopping for a blow dryer I would use on myself.”  

In her professional experience, McCarthy has found that more expensive hair dryers tend to last longer. “A higher price tag comes with a longer life cycle, not only because they are made of quality materials, but also because they typically come with warranties should something go wrong,” she said.

For personal use, find a hair dryer that best suits your needs and budget.

To find a quality hair dryer that will last you for years to come, Hemstreet recommends shopping at a beauty supply like Sally Beauty or Ulta. “Don’t go to Target or a drugstore and think that you’re going to be able to find a premium product there,” she said. At a beauty supply store, you’re more likely to start off with a better baseline of quality.

If you can, hold the hair dryer and see how well you can control the different buttons and switches from a variety of positions. “You’re going to be holding it from a lot of different angles as you’re trying to blow dry your hair, so it’s really important to get something that’s comfortable for you,” Hemstreet said.

For people looking to invest in a more expensive hair dryer, Hemstreet stresses the importance of understanding what you’re paying for. “If you’re looking for a premium dryer, read all the reviews on that dryer and find out if you’re paying for a lightweight motor, ion technology or something else.” 

However much you decide to spend on a hair dryer, there are some simple ways to help protect your hair from heat damage. “No matter the brand, I always recommend using a salon-quality heat protectant before applying any heat to your hair,” McCarthy said. She also recommends rough-drying your hair (giving it a quick, all-over drying with your hair dryer) and getting most of the moisture out of it before applying direct heat. “Unfortunately, a lot of damage is caused by user error.” 

“There are a lot of amazing hot brushes that are super popular on the market right now,” McCarthy said. “I think these tools are awesome and provide a salon-worthy blowout that requires minimal skill or effort. However using it on wet hair or without proper products is guaranteed to cause damage.” To avoid compromising the integrity of your hair, rough-drying before using these types of tools is critical.

No matter which hair dryer you choose, make sure to also have complementary tools and products on hand.

If your end goal is a professional looking blowout or a particular style, Hemstreet notes that just a blow dryer won’t cut it. “If you’re just buying a blow dryer but you’re not using product in your hair or any brushes, you’re not going to be able to create a salon look for yourself because brushes have almost as big of an effect.” She recommends finding out what kind of brushes or products you need to create the look you’re going for — when in doubt, ask your stylist for tips.

Before You Go

9 Hair Dryer Brushes You Need For Easier Styling
Revlon One-Step hair dryer and styler(01 of09)
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I've had this brush for a little over two years and it's been a lifesaver on my incredibly long wash days. I have a mix of 4a and 4b textures and with a little heat protectant, it glides almost seamlessly through my strands.

This handy tool is shaped like a regular handheld paddle brush and it has detangling bristles that smooth, dry and style your hair all in one sweep. The cord has a swivel design so it moves with you as you work around your head. It has three heat settings (low, cool and high), and as a frequent user, I can vouch for using it on the highest setting.
(credit:Amazon)
Hot Tools Pro signature detachable one-step volumizer and hair dryer(02 of09)
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This oval-shaped styling brush comes with a 2.8-inch barrel and claims to deliver salon-like blowout results. It uses direct ion technology for healthy and shiner hair, and includes an activated charcoal barrel and bristles. It has three custom heat settings: cool, low and high. The built-in swivel cord allows for flexibility while styling and the brush comes with a convenient storage case for travel.

One promising review from Amazon said, "I'm completely obsessed with this styler. I've never been able to master a round brush (and have got one stuck in my hair more than once) but this makes it so much easier than handling a brush and a blow dryer."
(credit:Amazon)
Revlon One-Step volumizer brush(03 of09)
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It's likely that if you're a hair dryer brush fan, you've heard of or seen this extremely popular one from Revlon. Its styling, drying and volumizing functions even landed it over 283,000 five-star reviews on Amazon, including one that states, "I was so nervous about using this dryer on my frizzy curls but I was soooo pleasantly surprised. The blow dry time for my curls went from 35-40 mins to about 20."

Equipped with a 6-foot swivel cord, a non-detachable head and tangle-free nylon and tufted bristles, this brush basically wants to replace all of your styling tools to cut down on your everyday hair routine.
(credit:Amazon)
Drybar Double Shot blow dryer brush(04 of09)
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It'll be hard to overlook this ergonomic, bright yellow brush on your bathroom counter, but with all of its neat features, you won't want to. It combines the heat of a powerful hair dryer with a round brush to produce a smooth blowout without having to go to a salon. The ionic technology works to seal hair cuticles for less frizz while still delivering a healthy shine.

"This took me 15-20 min to blow out my long, thick, hair with no other tools. My hair was already partially dry (which I would recommend prior to using this)," one review mentions.
(credit:Amazon)
Tymo Volumizer(05 of09)
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I first became aware of Tymo Beauty through a TikTok in which a user was demonstrating how she used their hair straightener, but I later discovered their other products, including the Tymo Volumizer.

This multifunctional hot air brush aims to give your hair volume and shine, all in one step. The titanium barrel has a 360-degree vent for quick drying. One review states, "I am a natural curly girl. When I want to straighten my hair, I have found that most blow dryers I have used in the past left my hair dry and brittle. This Tymo dryer not only straightened my hair, but left it feeling super soft! I didn't have to do a 'hard press' with my flat iron because it wasn't bushy or dry!"
(credit:Tymo Beauty)
L'ange Hair Le Volume 2-in-1 brush blow dryer(06 of09)
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"My hair is chin-length right now, and it's somewhat fine. It has always been frizzy. I got this, turned it on, and in just a few minutes, maybe 10 minutes, my hair looked as good as or better than when I go to the hair stylist," one review of this dryer states.

With three heat settings catered to different hair textures (fine, coarse, thick textured or thin), this barrel brush dryer is great for when you want more control over your styling. Ionic technology is used to prevent heat damage, and the 9-foot power cord allows for more movement.
(credit:Amazon)
Bed Head one-step hair dryer and volumizer hot air brush(07 of09)
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Bed Head doesn't just make shampoos, sprays and conditioners. Their one-step hair dryer brush comes in an oval design and has volume-boosting bristles to create all the texture you're aiming for, while still adding shine and smoothness.

One promising review states, "I have natural hair - probably 4b/c. It looks more like an Afro once I detangle, so I was very surprised that this worked. It was more effective if I sectioned my hair smaller (a little more than if I was flat ironing) and then use this. The grip is nice and strong, so I didn't always need both hands so I felt less uncomfortable."
(credit:Amazon)
Dyson Supersonic hair dryer(08 of09)
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Kissing frizz goodbye is the idea for this splurge-friendly, do-it-all Dyson hair dryer. It comes with several attachments, including a flyaway attachment, styling concentrator, diffuser, gentle air attachment and wide-tooth comb. Negative ion technology works to reduce static for a smooth finish, along with multiple heat settings for the various stages of drying.

One Sephora reviewer states, "This has truly been a game changer for me. I am obsessed with the flyaway attachment. I always have such a hard time controlling flyaways because my hair frizzes so easily. This just smoothes them all out and makes my hair look shiny."
(credit:Sephora)
T3 AireBrush Duo(09 of09)
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If you're looking for a hair dryer brush for your pre-flat iron hair-stretching process, look no further than this negative ion-powered brush. Its interchangeable design allows you to swap out attachments for more versatility and functionality. In the box, you'll find a 2.5-inch round brush attachment and 3-inch paddle brush attachment. It comes with five heat settings and three speed settings.

"I'll start out by saying that I have quite long, thick hair that typically takes 45 minutes or longer to dry with a blow dryer after washing. I was super excited to try out this new airbrush and see if it could improve my hair care routine, and boy did it deliver! Though, I still have to wait for my hair to dry a good bit before using this tool, it has cut down the active drying process to about 10 minutes," one review states.
(credit:T3 Micro)

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