The digital interface accurately displays the fully adjustable temperature setting from 170 degrees to 450 degrees Fahrenheit, providing optimal performance for any hair type. The floating plates with curved edges continuously adjust the tension and angle of the plates to avoid snagging your hair so that you have full flexibility when creating sleek, wavy or curly styles.
Straightening irons, straighteners, or flat irons work by breaking down the positive hydrogen bonds found in the hair's cortex, which cause hair to open, bend and become curly. Once the bonds are broken, hair is prevented from holding its original, natural form, though the hydrogen bonds can re-form if exposed to moisture.[2] Straightening irons use mainly ceramic material for their plates. Low-end straighteners use a single layer of ceramic coating on the plates, whereas high-end straighteners use multiple layers or even 100% ceramic material. Some straightening irons are fitted with an automatic shut off feature to prevent fire accidents.
A lot of hair straighteners will boast that their nano-ceramic like this is a good thing. In reality, this means that they’re made up of a cheap filler material (that will not heat as evenly or remain as durable as true ceramic) which is coated with a thing outer ceramic layer. If you want a flat iron that’s safe for natural hair, make sure you go 100% ceramic, or better yet, solid ceramic infused with tourmaline or titanium.
The Bio Ionic worked well on all of our testers’ hair, but it’s best on drier hair with a medium thickness. We spritzed testers’ hair with some keratin smoothing treatment, but the Bio Ionic did a lot of the heavy lifting to make our hair feel softer. The tool gets hot, but not too hot to grip, and it excels at creating the silky volume you want without making your hair pin-straight and flat. One tester put it perfectly: “[The Bio Ionic] is the Rumplestiltskin of hair straighteners. It’s turning straw into gold.”
Aside from ionic and infrared technologies the Bio Ionic Onepass Straightening Iron has something that is entirely new to me: silicon covered plates. They get the hair more in order when you’re straightening, save you a lot of time and reduce the amount of heat that you need. This one is great for African American hair, but I already selected the xtava Pro Satin for that because it’s more affordable.
There is a slide at the base which holds the device from opening all the way (easier for storing) but if you slide the piece it allows the flat iron to open all the way. The instructions inside the box don't explain this part, so at first I thought it didn't open very far, but once I figured this out, it became a breeze to use. Speaking of the instructions, they are listed in English, Spanish, French, and German. (I think... I don't speak/read all of those languages, but I believe that's correct.)
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When shopping for the best hair straightener for your unique hair type, it can be difficult to decipher all of the different styles and specs. That’s why we’ve done the hard work for you and created this all-inclusive guide to finding the best hair straightener for your unique head o’ hair, so you can spend less time scrolling through pages of products and more time rocking your new dream do’!
While the BaByliss Pro Nano Titanium Straightening Iron is a great option for a beginner or someone on the go, we like to think of the Solano Sleek Heat 450 Professional Flat Iron as the no-nonsense, professional-grade alternative for anyone with short or medium length hair. This Solano professional hair straightener isn’t just for stylists or beauty bloggers though: the fast heat time and maximum heat temperatures make it an ideal choice for any aspiring stylist-to-be or anyone with stubborn shorter styles.
Not sure which temperature setting is right for your hair? We recommend starting slow and building up to higher heat settings gradually. Not only will you be able to perfectly identify the optimal heat setting for your hair, but you will also avoid overheating. After all, very few of us actually need upwards of 400° F to see the salon results we’ve always wanted!

A lot of people don’t know there are tons of ways you can style your hair with a flat iron, and this actually might help you decide what size iron to get. You can curl, wave, straighten, add body, twist and more – just with a flat iron! Your straightener is so versatile you can skip most other styling tools and save money by investing in one that will do all of this for you. I walk you through different options for styling with your flat iron so you get the hairdo you want.
Given its tiny stature, it is no surprise that the BaByliss Pro Nano Titanium Straightening Iron is ideal for users with short or medium hair lengths. Unlike the more industrial models we reviewed that are designed for longer or thicker hair, this BaByliss hair straightener is small and light enough to polish off a short bob or shoulder-length style in no time.
“I’m in ‘ahhh’ at how awesome of a straightener this is. If you ask me, it’s a lot better than the high-end brands. It leaves my hair silky-smooth and shiny. I absolutely love its features, and you can watch the heat meter rise as it’s heating up. To me, five stars is not enough to rate this product. It’s definitely worth the money. I’m in love with this straightener. Also, the lock on it I found to be a awesome bonus.”
You do not have to use a blow dryer. In fact, I recommend not using one at all, as it could save extra damage to your hair and the extra heat isn't needed. After a shower, you could put your damp hair in a braid, let it dry in the braid, and when you want to straighten, your hair won't be as puffy or frizzy. That ultimately leads to straight, sleek hair.

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!
Not sure which temperature setting is right for your hair? We recommend starting slow and building up to higher heat settings gradually. Not only will you be able to perfectly identify the optimal heat setting for your hair, but you will also avoid overheating. After all, very few of us actually need upwards of 400° F to see the salon results we’ve always wanted!
Bio Ionic OnePass 1" Nano-Ceramic Straightening Iron (Black) Bio Ionic One Pass Flat Iron, Hair Straightener is the fastest ever! Far Infrared allows for quick styling without damage. Bio Ceramic Heaters maintain constant heat. The OnePass Iron shows a true break-through in flat iron technology. It straightens hair in half the time compared to other irons. This is the professional’s #1 choice in irons! Silicone Speed Strips for straightening and shine Instant heat, up to 400°F Instant recovery Nano-Ionic™ Mineral fused to cushion plates High levels of negative ions Far infrared energy for silky smooth hair Bio Ceramic 5 Second heaters Advanced heat controller 10 feet swivel cord
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This iron is one the coolest tool I’ve ever used. It is a beautiful looking straightener with very high technology. With 50% more power and wider plates (1.5″), the T3 SinglePass X is specifically designed to straighten hard-to-manage hair, such as long, thick or coarse hair. Most importantly, it is designed to do the job fast – it straightens in a single glide!
Not sure which temperature setting is right for your hair? We recommend starting slow and building up to higher heat settings gradually. Not only will you be able to perfectly identify the optimal heat setting for your hair, but you will also avoid overheating. After all, very few of us actually need upwards of 400° F to see the salon results we’ve always wanted!
Whether you have particularly curly hair or thick locks, this T3 hair straightener is designed to leave you with a shiny finish in a fraction of the time of other hair straighteners on the market today. Specifically, the T3’s smart SinglePass technology maintains consistent heat throughout the entire plate to straighten all hair types with one glide.
At $230, the Bio Ionic is pricier than any of our top picks. But you get what you pay for. You can truly do with your hair whatever you desire — straight or curled — in one pass. And, if you’re worried about it breaking a few years after purchase, the Bio Ionic comes with a five-year warranty. By investing in a better-quality tool up front, you won’t have to replace your flat iron every couple of years. Plus, the Bio Ionic goes on sale every now and then, so it’s worth keeping your eye out for deals.

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!
Working in sections, curl your hair. Using just the wand (and not the clamp at the bottom of the wand that "holds" the hair as it curls), wrap your section of hair around the barrel. Be sure not to overlap your hair, as this will reduce heat and result in limp sections. Use your fingers to hold the edge of the section of hair close to the barrel without burning your hair. Doing this rather than using the clamp will prevent crimps in the curls.

“The temperature of the iron can determine the curl pattern on hair that tends to fall easily, as you might need a higher heat to lock in the pattern closer to the root,” she added. “The internal components of the irons also can determine the curl pattern, and that is why it is important to invest in custom, high-end tools that contain internal heaters that go the entire length of the barrel. The higher the heat, the stronger the curl will essentially be. Low heat will produce a softer finish.”
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If you have ever visited a luxury spa or wellness company, you have probably run across far infrared heat a time or two. Without going into too much science, infrared heat is the same heat you feel when the sun kisses your cheeks and warms your body from the inside-out. Far infrared heat, in particular, has been used by medical and wellness professionals for years to treat a variety of conditions from muscle pain to even cancer.
Once you get over the sticker shock, you'll see just how revolutionary this tool is. It's not a traditional flat iron by any means, but one of the attachments called the "firm smoothing brush" can be used to straighten and smooth frizz in coarse, thick hair. Best part? It works on damp hair, so you're cutting down on the time it takes to get ready as well.

When we first took the Babyliss out of its box, we were impressed by its super thin design. And when we put it to the test, the tool lived up to our expectations. It felt light, like the Chi Air, and manageable when gliding through hair. Unlike the HSI which felt rickety and bulky, the Babyliss’ design was sleek and professional. It wins as the flat iron we’d expect to see in a high-end hair salon.
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.
Aside from ionic and infrared technologies the Bio Ionic Onepass Straightening Iron has something that is entirely new to me: silicon covered plates. They get the hair more in order when you’re straightening, save you a lot of time and reduce the amount of heat that you need. This one is great for African American hair, but I already selected the xtava Pro Satin for that because it’s more affordable.
Anyone with naturally curly knows that the trick to keeping your curls looking their finest is all about moisture. Whether you’re hoping to sport a straightened style for an evening or two, or just to polish your existing curls, a great hair straightener can help you get the look you’ve always wanted without causing permanent damage to your precious curls! When shopping for the perfect hair straightener for your curly hair, you’ll want to keep the following in mind:
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!
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