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12 best hair straighteners to leave your hair smooth and sleek

Prima (UK) Logo By Charlotte Bitmead of Prima (UK) | Slide 1 of 13: No matter your hair type, a trusty hair straightener is an essential tool in your beauty arsenal. Whether you fancy revamping your go-to do or simply want to send frizz packing, there’s a styler that’s up to the job. Our panel of 285 testers tried 19 of the best hair straighteners on the market to find the best for every budget, keep reading to see which devices came out on top. How do I choose a hair straightener?Different tools will be best suited to different hair types, so identify whether your hair is fine, frizzy, thick or afro before starting your hunt. Fine hair: Our hair naturally begins to thin as we get older. Ceramic or ceramic-coated plates are better suited to sparse strands as they heat up evenly, allowing for a gentler styling experience that won’t scorch patches of hair. Frizzy hair: Keep those newly smooth strands frizz-free by using a straightener with ionic technology, which seals hair cuticles to stop humidity ruining your style. Thick hair: The greater your iron’s surface area, the faster you’ll get through that enviable mane, so opt for larger plates to cut down your styling time. Afro hair (curl types 4A to 4C): Ceramic-coated plates will straighten your natural curls, but not too harshly. Even better, look for a tool that uses steam to keep hair soft and smooth. Is it OK to use a hair straightener everyday?Heat styling your hair can leave it dry and brittle, but there are things you can do to minimise the risk of damage. The lower the temperature, the safer it will be for fragile ends, so check how many heat settings your chosen styler offers. It’s always smart to apply heat protection spray before styling, too. Remember that your hair is most vulnerable when wet, so unless your tool is designed to be used on damp manes like this Remington straightener, either let it air dry or use a hair dryer first. How we test Our panel of over 285 testers – with straight to afro, long to short, and fine to thick hair – tried 19 hair straighteners to find the best you can buy. They judged each tool on how quickly it heated up, how easily it reached their roots, whether it achieved their desired style and how shiny and healthy it left their hair. In the Prima lab, our expert testers used an EV Standard machine to record the temperature of each straightener and assess the accuracy of its heat settings. They then used a Bossa Nova Shuffle machine to measure how long styles lasted and how frizzy hair got when subjected to humidity.

No matter your hair type, a trusty hair straightener is an essential tool in your beauty arsenal. Whether you fancy revamping your go-to do or simply want to send frizz packing, there’s a styler that’s up to the job.

Our panel of 285 testers tried 19 of the best hair straighteners on the market to find the best for every budget, keep reading to see which devices came out on top.

How do I choose a hair straightener?

Different tools will be best suited to different hair types, so identify whether your hair is fine, frizzy, thick or afro before starting your hunt.

Fine hair: Our hair naturally begins to thin as we get older. Ceramic or ceramic-coated plates are better suited to sparse strands as they heat up evenly, allowing for a gentler styling experience that won’t scorch patches of hair.

Frizzy hair: Keep those newly smooth strands frizz-free by using a straightener with ionic technology, which seals hair cuticles to stop humidity ruining your style.

Thick hair: The greater your iron’s surface area, the faster you’ll get through that enviable mane, so opt for larger plates to cut down your styling time.

Afro hair (curl types 4A to 4C): Ceramic-coated plates will straighten your natural curls, but not too harshly. Even better, look for a tool that uses steam to keep hair soft and smooth.

Is it OK to use a hair straightener everyday?

Heat styling your hair can leave it dry and brittle, but there are things you can do to minimise the risk of damage.

The lower the temperature, the safer it will be for fragile ends, so check how many heat settings your chosen styler offers. It’s always smart to apply heat protection spray before styling, too.

Remember that your hair is most vulnerable when wet, so unless your tool is designed to be used on damp manes like this Remington straightener, either let it air dry or use a hair dryer first.

How we test

Our panel of over 285 testers – with straight to afro, long to short, and fine to thick hair – tried 19 hair straighteners to find the best you can buy.

They judged each tool on how quickly it heated up, how easily it reached their roots, whether it achieved their desired style and how shiny and healthy it left their hair.

In the Prima lab, our expert testers used an EV Standard machine to record the temperature of each straightener and assess the accuracy of its heat settings. They then used a Bossa Nova Shuffle machine to measure how long styles lasted and how frizzy hair got when subjected to humidity.

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