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.
As you discover the beauty of straight styles, you'll want to find the best hair straightener that won't compromise your hair and caters to your hair type. Achieve optimal results through the reliable performance, quality, and design of NuMe professional styling tools. The gentle heating of far infrared technology and negative ion-producing, 100 percent pure, tourmaline ceramic plates reveal the conscious and authentic design of NuMe hair straighteners. 

While there are a lot of great options to choose from, our all-around top pick is the LumaBella Keratin Duel Touch Hair Straightener. Featuring unique, keratin-infused plates for optimal shine and less damage, the LumaBella Keratin Duel Touch Hair Straightener proves that technology really can make a difference when it comes to hair care! We also love this model’s innovative smart heat sensors that protect hair from heat damage and lock in moisture.
The Babyliss gets hot quickly and moves through hair fast. This is thanks to its thin, lightweight design and the fact that it stays consistently hot. Our testers were amazed that it passed through their hair so quickly and left it smooth without feeling damaged or fried. Plus, when being styled by someone else, our testers said it didn’t snag their hair.
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.
Lifters who are deadly serious about their training, and who prove it by doing the serious exercises - the BIG movements -- exercises like squats, front squats, bench presses, barbell bent-over rowing, deadlifts, Trap Bar deadlifts, standing presses, push presses, power cleans, power snatches, and jerks. Lifters who finish every workout covered in chalk and sweat - and who've been doing it that way for a long time.
“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.
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!
Despite these downsides, the HSI Professional comes with plenty of positives, including extras not often found with other hair straighteners. Along with the straightener, you'll receive a carrying case, a heat-resistant glove for easier hair styling, a style guide, and a travel-size argan oil leave-in hair treatment serum to smooth and protect your hair. This is more than most high-end hair straighteners come with, all for a fraction of the price.
For those with thick hair, the idea of "quick styling" often feels like an impossible dream. It's usually easier to use the "throw it up and go" technique to get out the door in time. However, straight, sleek hair doesn't have to be a luxury reserved for those with fine hair, especially when you have a styling tool designed to tackle even the thickest, curliest hair like the Xtava Pro.
Negative ions have been a longtime fan favorite in the hair care industry, and it is no surprise that this same technology would appear in our top picks for the best hair straightener. Negative ions have been found to reduce static and frizz while locking in moisture, and the same goes for your hair when you use the CHI Air Expert Classic Tourmaline Ceramic Flat Iron!
If you’ve ever used a CHI hair straightener before, then you’re probably pretty well acquainted with the turn dial temperature control of models’ past. While this dial design made it easy to switch on your hair straightener each morning (even before you have had your morning coffee!), it also made it all too easy to accidentally change the temperature during use.

If you are unsure what exactly your hair type is (or if it has changed over the years, which happens more often than you’d think!), check out this incredible overview by the hair professionals at Redken! Don’t stress if you have combination hair (i.e., fine and curly or thin and straight) either; we recommend choosing a hair straightener based on your biggest hair complaint and focusing on that problem first. So, if your curls are driving your nuts, you will want to select a hair straightener with higher temperatures, thin hair needs moisture, etc. You’ll find that your entire hair type can usually benefit from the extra TLC!
When putting your hair under the intense heat of a flat iron or hair straightener, you’ll probably find that breakage and damage are that much more common. And that’s why we absolutely love the LumaBella Keratin Duel Touch Hair Straightener! Packed with all sort of high-tech features and gizmos, LumaBella’s hair straightener achieves salon-worthy results without the harsh damage of most styling devices for a natural, healthy shine with each use!
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!
STEAM INFUSED WITH ARGAN OIL OR PURE WATER PREVENTS HAIR DAMAGE: Designed with steam compartment that can be used for Argan Oil Serum or water, PureBlackMagic Steam Infusion Hair Straightener releases steam within 60 seconds of heating. The conditioning steam infuses moisture back into your hair, locking in natural oils and adding more shine to the finish.

Most mid-grade and high-end hair straighteners come with plates that are 1” or 1.5”. If you are looking at one that is 2”, 2.5”, or even bigger, steer clear immediately. Not only does larger plates make it easier for you to accidentally over-iron (and seriously damage) your hair, but they also make it more difficult to get all of the way down to your roots. For anyone with type 3 or type 4 hair, trying to use a large-sized flat iron would be far more trouble than it’s worth.
If you lived through this particular time in our world history, then you probably remember the super straight hairstyles that we all sported a time or two (bonus points if you took a photo of yourself like this in your bathroom mirror using a digital camera!). For reasons we may never know for certain, sharp and straight hair was the hairstyle of choice back in the early 2000’s giving the good old hair straightener somewhat of a bad reputation.
The two strips of silicone atop Bio Ionic’s flat iron plates seem silly, but they serve an important purpose. By buffering the outer edge of the plates, they reduce your chances of hair snags. They also force you to glide the flat iron more slowly through your hair (they are called speed strips, after all). While the slower technique maximizes shininess and smoothness, the speed strips can become a bit of an obstacle if your hair is thick.
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