We started with six flat irons but ultimately dropped two because they didn’t work well on any of our testers’ hair. The inexpensive, but highly rated HSI Professional Glider Ceramic Tourmaline Ionic Flat Iron was bulky and awkward. Testers said it felt like two pieces of plastic passing through their hair. We thought the NuMe Megastar Hair Straightener, a popular and more high-end tool, would be a clear contender for our list. However, testers said it snagged hard against their hair to the point of hurting. It was also difficult to hold closed when styling. Because both of these flat irons received such low ratings among our testers, we didn’t include them in our top picks.

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.
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.
Eight embedded sensors regulate and evenly distribute the heat on this ceramic iron, minimizing damage and increasing shine and smoothness. With adjustable temperature settings that go as low as 140 degrees (the coolest we've ever seen), it's ideal for anyone with super fine hair, or to smooth out the tiny frizzies around your hairline. It also comes with a lifetime warranty, which is never a bad thing.

HSI Professional is committed to delivering salon-quality styling tools and hair care products to consumers all over the world. All appliances are designed to hold up to salon and home use, while all hair care products are made in the USA using pure Argan Oil containing vitamins A, B, C and D. These hair products are specially created to replenish, reinvigorate, repair, and add shine and smoothness to you hair. Using high-quality ingredients and construction in the expanding product line, this brand is built for you and will continue to adapt around your feedback.
T3’s white and rose gold flat iron seems too pretty to reliably function, but hey, sometimes miracles happen. There are four temperature settings ranging from 260 to 410 degrees, and the tool heats up in about a minute. Its ceramic plates are infused with tourmaline, a mineral said to make hair extra smooth because it emits negatively-charged ions. There’s no scientific evidence to support this, but my unscientific bathroom study found that this flat iron does indeed make my hair look shinier.
If you’re a professional or more experienced with a flat iron, then it’s worth considering the Babyliss Pro Nano Titanium-Plated Ultra-Thin Straightening Iron. We were impressed with how well it worked across all hair types. It’s one of two top picks that straightened all of our testers’ hair in one pass (the other one that could do this was the Chi Air). And, like the Bio Ionic, the Babyliss leaves hair feeling smooth and voluminous.
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.
It has settings for different amounts of heat needed to straighten various types of hair. You should not use the highest setting unless your hair is very unruly with lost of natural oil. It is a well known fact that some straighteners can leave your hair hard and flat. This will never happen with model. Your hair will not get “cooked” even with daily use.

GHD’s “styler” is permanently set to 365 degrees Fahrenheit, which the company says is the highest temperature hair can tolerate before it becomes damaged. As a person who went from a dark brunette to blonde highlights, I can vouch for its straightening power on processed hair. And though I don’t typically think of “comfort” as a flat iron necessity, the springy hinge that connects the two plates really did make it easier to clamp and glide the tool down my hair with minimal effort.
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