Derek Yuen, the man responsible for Cole Sprouse's grown-up new look, recommends the GHD Platinum Professional Performance iron. The flat iron is consistently and evenly heated at 365 degrees, which is safer and less damaging on the strands. “The beveled edges also allow for infinite styling possibilities, not just just for straightening hair,” says Yeun.
Hair breakage is an all too common problem, and even the most seasoned of hair stylists can slip up from time to time. That’s why LumaBella’s Keratin Duel Touch Hair Straightener features a unique smart heat sensor. This nifty little gadget can actually tell when there is too much heat for your hair, and will automatically adjust to a safer styling temperature!
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If being limited to only a handful of temperature settings isn’t really your cup of tea, look no further than the BaByliss Pro Nano Titanium Straightening Iron! This lightweight flat iron features a whopping 50 heat settings for hair types of all shapes, styles, textures, and colors making it one of the most versatile hair straighteners on our list.
Bio Ionic 10X Pro Styling Iron 1" - Nano Ionic - with Vibrating Plates The Bio Ionic 10X Pro Styling Iron 1 Inch is part of the Luxe Pro Styling Collection. Natural Volcanic Rock Minerals infused into the Bio Ionic Luxe Pro Styling Collection are uniquely refined to emit negative ions that drive tiny water molecules deep into the hair. Hair becomes hydrated and conditioned on the inside, while the outer cuticle layer lies flat and smooth, trapping moisture, giving it a vibrant shine.
“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.

The curling iron can also have either a spring-loaded, Marcel, or clipless handle. Spring-loaded handles are the most popular and use a spring to work the barrel's clamp. When using a Marcel handle, one applies his or her own pressure to the clamp. Clipless wands have no clamp, and the user simply wraps hair around a rod. Most clipless curling irons come with a Kevlar glove to avoid burns.
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.
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
Consider this the perfect flat iron for full hair. "It is great for thicker textures because it distributes heat evenly, allowing for less passes through the hair," explains stylist Lacy Redway. The plates "make it easier to straighten or curl longer hair lengths." Redway was responsible for  Tessa Thompson’s sleek ‘do on her past ELLE cover, so you know it’s top-notch.

If you have trouble remembering to unplug your flat iron before heading out, you’ll appreciate the Chi Air’s one-hour automatic shutoff. Since people have preferences regarding auto shutoff this wasn’t a criteria for us, but our testers thought it was helpful. One tester said she often leaves her flat iron on in the morning and invested in a timed switch to make sure it’s off. So if you’re forgetful when it comes to turning off your tools, then auto shutoff might be an important feature for you.
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Here at the Strategist, we like to think of ourselves as crazy (in the good way) about the stuff we buy (like pillows), but as much as we’d like to, we can’t try everything. Which is why we have People’s Choice, in which we find the best-reviewed (that’s four-to-five-star reviews and lots of ‘em) products and single out the most convincing. While we’ve written about the best curling irons, hair dryers, and even a certain curling iron used on the Victoria’s Secret Angels, here, we’re going deep on the best flat irons and hair straighteners on Amazon. (Note that reviews have been edited for length and clarity.)
Celebrity hair stylist Priscilla Valles’s go-to straightner is the classic GHD 1-inch straightener. “I start in the nape and bring down small sections, one row at a time and I use a GHD flat Iron with a comb in the other hand,” says Valles. “I place the comb in front of the iron while ironing at the same time in a slow motion all the way down. Never stopping cause that will cause dents in the hair. At the end a dime size of ouai rose from top to bottom just to add some shine and control any fly aways!”

Bio Ionic 10X Pro Styling Iron 1" - Nano Ionic - with Vibrating Plates The Bio Ionic 10X Pro Styling Iron 1 Inch is part of the Luxe Pro Styling Collection. Natural Volcanic Rock Minerals infused into the Bio Ionic Luxe Pro Styling Collection are uniquely refined to emit negative ions that drive tiny water molecules deep into the hair. Hair becomes hydrated and conditioned on the inside, while the outer cuticle layer lies flat and smooth, trapping moisture, giving it a vibrant shine.
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.
"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.
Heat stylers, such as flat irons, get a bad rap for singeing hair beyond repair, but that doesn't have to be the case. The key to preserving your hair's health while using these hot tools is passing a quality straightener over heat-protected strands without letting the heat sit on one spot too long. Speaking of stellar straighteners, here are 11 of our top picks, ya know, if you're looking to upgrade yours.
In short YES! You absolutely can use too much heat on your hair. Burning hair is not a good smell, it’s not a good look either! You may end up having to get a pretty severe haircut if you’re not careful about the amount of heat you put directly on your locks. Read through this to get an idea of what’s safe and what will leave you wishing for a good trim (or possibly a wig).

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.
The ceramic blue plates aren't just pretty; they push conditioners into the hair, quelling frizz 65 percent more efficiently than a traditional ceramic iron. Even experts were impressed. "[It] leaks heat-protective ingredients onto the hair at the exact point of contact, coating every strand during the straightening process," says cosmetic chemist Ni'Kita Wilson.
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