Heat protectants contain ingredients that coat hair and slow down heat induction. Janine Jarman says, “Blow dry your hair properly; use a heat protectant product; and with the right iron, you should not have to make a bunch of passes to get the results you want.” We used TRESemmé Expert Selection Heat Protection Spray, Keratin Smooth. Most of our testers liked how it worked on their hair and felt a noticeable difference when using it. Our tester with kinky hair didn’t use the product because she knew it wouldn’t work on her hair. Instead, she recommends using an oil (like an Argan oil) or a hair grease to add moisture to the hair, which makes it easier to straighten.
The solution? Automatic shut off. That way, even if you do forget to turn off your hair straightener, you can be at ease knowing it will turn off on its own automatically. Not all hair straighteners come with this feature, and if you don't have an issue remembering to turn these types of things off it may not be necessary. Still, a little peace of mind and extra precaution never hurt.
The floating plates are contoured with smooth edges, so you won't have to worry about your hair snagging as you're styling. If you have thicker hair, you may want to consider the 2-inch plate option, which will cover more surface area and help you style your hair more quickly. However, if you'd rather have the versatility of being able to curl and flip your hair as well as straighten it, we'd recommend the classic 1-inch plate.
If your hair is plagued by tangles and knots on a regular basis (even in between straightening!), try switching your hairbrush out for a wide-toothed comb! The added space in between the teeth gently separately knots and tangles without the painful “Ouch!” with each stroke. If that still isn’t enough to tame your stubborn tresses, try a wet brush! These brushes are specially designed to work through knotted, wet hair without any tugging or pulling.

The LumaBella Keratin Dual Touch has been found to give 50% less breakage, splitting, and damage compared to other straighteners without heat sensor technology! While your hair straightener can’t repair years of damage overnight, this model can help restore the natural shine of your hair and allows you to keep styling by reducing additional damage by up to 50%! This means that it is safe for daily styling.

The plates of the HSI Professional are made of solid ceramic that is infused with tourmaline. The combination allows for consistent temperature and gives hair a smooth finish. The wide range of heat settings, starting at 140 degrees Fahrenheit and going up to 450 degrees Fahrenheit, gives you more control over styling and makes this an ideal straightener for multiple hair types.

This is an absolute MUST HAVE for anyone with natural black hair. We talked earlier about how dangerous low-end flat irons can be for anyone with type 3 or type 4 hair, and this is precisely why. If you fit into those hair types, any straightener without an adjustable temperature control is likely to be way too hot for your hair to handle – especially for long-term use.
“I’ve owned a Conair, Chi, and I-Tech straighter before, but this one is FABULOUS! There really is no tugging at all on your hair — so smooth, and I was shocked that it truly heats up in 15 seconds, as advertised! It also does something magical to my hair: It adds more shine like no flat iron has done before. Mind you, my hair is very difficult to deal with. It has always been coarse, wavy, dry, and thick! This iron worked beautifully on my hair.”

Unlike the Bio Ionic’s handy digital temperature control, the Chi Air uses a small dial on the side of the tool that’s harder to read. The dial’s placement makes it not only more difficult to get an accurate reading, but also more prone to being hit by your hand and switching to a new temperature. That being said, most of our testers didn’t mind this minor inconvenience since they don’t expect to change the tool’s temperature often.

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Just because you were blessed with a head of naturally straight hair, doesn’t mean hair straighteners aren’t for you! Hair straighteners are a great way to style the split ends that are all too common with straight hair types and can also give your hair a natural-looking curve for added volume! When shopping for the best hair straightener for your naturally straight hair, you will want to look for the following:
Automatic shutoff isn’t a feature we included in our criteria since people have varying opinions about it, but we liked that the Chi Elite has this. Especially for new users who might forget to turn off their flat irons. Like the Chi Air, the Chi Elite will shut off after one hour. However, if you’re working with kinky hair, auto shutoff may be a problem. Traditionally this hair type will take longer to straighten due to detangling and the fragility of the hair.
Our two testers with kinky and thick hair loved the Chi Air Expert Classic Tourmaline Ceramic Flat Iron. In fact, it was each of their top picks, with the Bio Ionic coming in second. The Chi Air reaches 410 degrees F, which is definitely hot enough for thicker and curlier hair types. The speed at which the tool worked was surprising considering the kinkiness and thickness of both testers’ hair. One tester with long, curly hair had to leave early for an event and needed to finish styling. The Chi Air moved through her hair quickly, giving her time to spare. And, even at 410 degrees, our testers didn’t feel like their hair was being fried or that the heat burned their heads. In fact, they complimented how soft it made their hair feel and how comfortable it was to use, unlike the NuMe Megastar which snagged a lot or the HSI Professional Glider which felt hot against their scalps. As one tester said, “Chi is killing it.”
That is just one of the reasons that hair straighteners are such a wonderful tool to keep in your beauty arsenal; not only does this nifty little device give you movie star-quality straight hair when you want it (sorry blow out bars), but it can even create the same curls as those confusing barrel-ended curling irons! So, clean out your cabinet under the sink and make room for that makeup you’ve been eyeing or the perfume your husband forgot to buy you for Valentine’s Day last year, because a professional-grade hair straightener can literally replace all of your existing heated hair care tools!
There are 25 heat settings (200 °f-450 °f) that are digitally controlled. It heats up to 450 degrees almost in an instant, making it a perfect solution for maintaining keratin treatments. You can use it without the infrared lights and still get great results, but when you turn them on, you will not believe the change in your hair quality, that will be visible immediately.
This feature is particularly beneficial for users with naturally wavy or curly hair, which can have a tendency to easily snag in hair styling tools. This floating design, combined with the heat sensor, also ensures that your gorgeous curls won’t become permanently damaged just because you decide to straighten things out a bit for an evening or two. After all, those curls are coveted by beauty pros the world over, and you never want to damage them just because of a styling trend!
By-and-large, most people with natural hair have some variation of type 3 or type 4 – which is exactly why low-end hair straighteners can be so dangerous. More curly natural black hair has a tendency to be more porous than other hair types. As a result, it can lose moisture easily and become damaged. With the wrong flat iron, this can lead to split ends and breakage after just a single use.

This feature is particularly beneficial for users with naturally wavy or curly hair, which can have a tendency to easily snag in hair styling tools. This floating design, combined with the heat sensor, also ensures that your gorgeous curls won’t become permanently damaged just because you decide to straighten things out a bit for an evening or two. After all, those curls are coveted by beauty pros the world over, and you never want to damage them just because of a styling trend!
At first, the Bio Ionic 10X Pro Styling Iron’s vibrating plates seemed gimmicky. But we were surprised at how effective they were when styling our hair. Our testers found the vibrating plates made straightening their hair go faster with virtually zero snagging. Engaging the vibration was also simple — click the power button and tap the plates together and you’re ready to go.

So far I like this straightener. I haven't figured out the curling part of it but will be watching some videos next for that. Other than that it does a good job of straightening hair. I have super thick hair with natural ringlets. It usually takes multiple passes to get my hair soft and smooth. This one does a good job b/c it closes properly down on the hair and doesn't leave my hair looking crimped. The hair also doesn't get caught under the blades and rip out of my head like my last straightener. I haven't used the $200 one that is comparable with this one but I am super picky and this is a good straightener!!
“Infrared is so beneficial being that the wavelengths are longer and can penetrate deeper into the cuticle heating the hair from the inside out, keeping your hair's own natural moisture, leaving the hair smooth (and) shiny and keeping it extremely healthy, versus other conventional styling tools that actually pull moisture out of the hair, leaving the hair dry, brittle, dull and damaged,” said hair expert and stylist Gina Rivera.
“Being a mom of two, it’s hard to have time to get my hair done, but with this, I do my hair in 30 minutes, rather than over an hour. I haven’t bought a new straightener in probably four years, and I bought this with very little expectations. OMG! First of all, not only did it take half the time to do my hair, but it left my hair as amazing as I always wanted it! Super silky-smooth. I then used it to make some curls on my 8-year-old. In less than 15 minutes, I was done with her hair and she was in love with the curls.”
In addition to a fast heat-up time and multiple temperature settings, the 9-foot cord and 360 swivel make for easier styling and prevents and tangling. You can also travel with this styling iron thanks to the dual voltage settings. Anti-slip edges and floating plates allow your hair to glide effortlessly between the plates, with no pulling or snagging which can be especially damaging for fine hair.

When you feel like it’s time for straight, shiny locks, we’ve got your back. Our flat irons are so well-designed and powerful they can straighten even the curliest of hair. Our selection of hair straighteners also come in a variety of sizes, colors and shapes, and some even include thermal bags or travel containers so the flat iron is protected. Many of our irons also include a warranty to guarantee that the electronic components are functional for years to come. Depending on how long or short your hair is, or the type of styles you seek, you will need to select a style that best suits your styling needs. For instance, a 1.5-inch iron works best on medium to long hair, while 1-inch irons are typically made for shorter hair.
Most of the hair straighteners we reviewed heat up in under a minute, but the Cloud Nine Original Flat Iron has to be one of the fastest on the market! In as little as 20 seconds, this hair straightener transforms from cool to hot, hot, hot! With this model, there is no need to wait around for your hair straightener to warm up, which means you spend less time getting ready in the morning and more time getting on with your day.
Nor does it speak to those of us who work long hours at our job - who support our families and who struggle with issues like how to pay the bills or how to put the kids through college - who have limited time and energy for training - and who are more interested in how to train for lifelong strength and health than in how to gain 30 pounds of muscle in six weeks.
When taming coarse, wavy or curly hair, sometimes you need a little to kick it up a notch. That’s why we love that the CHI G2 Ceramic and Titanium Flat Iron can reach a maximum temperature of 475° F and heats up in under a minute! With this hair straightener, say goodbye to wasted time waiting for your tool to heat up, and get styled and out in the door!

Fine or thinning hair can easily become damaged under too much heat, so cooler temperatures (i.e., those under 300° F) are ideal for these hair types. If you have very curly, course, or thick hair, then higher temperatures upwards of 400° F may be more suitable to your needs. With the ISA Professional Titanium Flat Iron, you can cool it down to 265° F if need be and also crank it up to a whopping 450° F for textured styled.
With ceramic tourmaline technology, floating plates, and an extremely wide range of temperatures, the Berta Professional tourmaline ceramic flat iron is great for this type of job. It’s also got an elongated body so hair doesn’t slip off the end while you’re styling, and reviewers are saying things like, “I got the hair straightener to curl my hair and it does a great job. My hair never holds a curl but this flat iron did the trick.”
Size matters. With plates too big or too small, you’ll have to make multiple passes. This exposes your hair to high heat longer and increases the risk that you’ll do damage. According to Janine Jarman, owner and operator of acclaimed Hollywood salon Hairroin, a 1-inch-wide plate will do for most people, and if you want to use your iron for anything other than straightening, like creating curls or waves, you’ll need a 1-inch plate; anything larger won’t make the waves or curls tight enough. She also pointed out length is important too. “You need plates to be at least 3 inches long, or close to it, so you’re not spending a ton of time with small sections.”
Let’s face it: styling your hair is a 360° job. That’s why the folks at Cloud Nine have designed their Original Flat Iron with a swivelling 360° cord! No more tangled messes or twisted cords, with this hair straightener you can easily reach delicate fly-aways and seemingly invisible back sections without the hassle of a tangled or knotted cord ever again. When it comes to hair straighteners, the Cloud Nine Original Flat Iron really proves that perfection is in the details!
By-and-large, most people with natural hair have some variation of type 3 or type 4 – which is exactly why low-end hair straighteners can be so dangerous. More curly natural black hair has a tendency to be more porous than other hair types. As a result, it can lose moisture easily and become damaged. With the wrong flat iron, this can lead to split ends and breakage after just a single use.
"Unite Pro Tools Flat Iron is an easy-to-use, low maintenance iron," says Chris Dylan. Dylan works with Kylie Jenner so finding an easy-to-use tool is a must when you’re helping someone go from a platinum blonde bob to jet black floor length extensions. in a span of a week. He notes that with a fast-heating iron and beveled edges, it creates soft waves and has a great temperature gauge that keeps you firmly in control of the heat.
“This flat iron is amazing! It is so small, it almost looks like a flat iron for a doll. Don’t let the size fool you. I have medium-thick, naturally curly hair, and this iron had no problem getting all of my hair straight. If you are used to a flat iron, you should have no problem using this. This is the best flat iron for traveling, the gym, or stashing in your desk at work. I would highly recommend this flat iron.”
While temperature control is typically a good thing to have in a hair straightener, it can also result in hair damage if you're keeping the temperature too high. The GHD Gold eliminates the chance of any user error, operating at an even 365 degrees Fahrenheit. This is the optimal temperature for most hair types, getting you smooth results without damaging your hair. The gold coated ceramic plates heat up quickly and maintain an even temperature, eliminating the chance for any hair damaging hot spots as well.

According to Jarman, you should never have to use both hands to clamp the iron down on your hair. You not only risk burning your fingers on the plate end, but this can pull at your hair and break it. High-quality, modern irons are designed to clamp together from the handle end only, so if you find that your iron requires pressure on both ends, it’s time to upgrade.
It is packed with the most advanced technology to give you shinier, smoother results that lasts longer. The one-inch wide heating plates are made of high quality, durable ceramic that provides an ultra smooth surface so that you’re hair glides through. The ceramic plates are then coated with tourmaline gemstones that emit negative ions to give you a frizz-free shine.
This flat iron is amazing! I have natural curly hair, and I live where it's humid a good majority of the year. This flat iron is good enough to keep my hair straight for a few days. That's with using products like hairspray, dry shampoo etc. I've been using this for about a month, 3-4 days a week, and haven't noticed any heat damage. That's always a plus. I'd say this was a good buy!
One of the Babyliss’ major drawbacks, and why we only recommend this flat iron for experienced users, is the outside gets hotter than any of our other picks. Hot to the point that it was too hot to hold. One tester said she was “afraid to accidentally touch the top of it.” Others said they could feel the heat against their scalps. At first, another tester said she didn’t mind the heat. This was moments before she burned the top of her hand when it merely grazed the side of the tool.
An upgrade from their since discontinued Eclipse Styler, you won't be tempted to heat this flatiron up to 450 degrees, because the temperature dial is always stuck on one number: 365 (the ideal heat to mold hair without frying it, according to the scientists at GHD). Underneath each of those 365-degree plates are three fancy sensors that measure the density of the hair in the iron so that it can maintain consistent heat regardless of the chunk of hair you grab. The result? Silky, shiny hair with zero frizz.
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