Best hair straighteners 2025: for sleek, frizz-free hair

The best hair straighteners deliver that ultra-sleek, frizz-free finish in no time, saving you a trip to the salon. Whether you’re rocking long waves or a cropped cut, the right tool can turn a bad hair day into a great one with just the press of a button.

So, which ones are worth your time? We’ve rounded up the best hair straighteners available right now – whether your hair is curly, frizzy, short or already straight. Our top pick has to be Cloud Nine The New Original Iron, but there are plenty more to suit every hair type and styling need.

If you're ready to overhaul your entire styling setup, don't miss T3’s guides to the best hair dryer and best hair curlers as well.

The top three

WRITTEN BY

WRITTEN BY

Lizzie Wilmot

Lizzie is T3's Home Living Staff Writer, meaning she covers beauty tech on the site. With her frustratingly in-between hair – part straight, part wavy – she knows exactly what it takes to find the best tools for achieving perfectly sleek, straight locks.

Best hair straighteners ranking 2025

The best hair straighteners overall

Cloud Nine released three new straighteners last year, and The New Original Iron is by far our favourite. Packed with upgrades, it features advanced heat protection to keep your hair healthy without sacrificing styling power.

Suitable for all hair types, this versatile tool straightens and curls effortlessly, leaving your hair silky and shiny. Its vibrating Revive Mode ensures smoother, longer-lasting results while styling at lower temperatures. With its sleek design and comfortable grip, there’s really nothing to fault about this standout straightener.

Yes, it’s on the pricier side, but for what it delivers, we couldn’t recommend it more.

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The best affordable hair straighteners

The Mdlondon STRAIT hair straightener is lighter and slimmer than most flat irons, making it incredibly easy and comfortable to use. Its extra-long floating plates allow you to straighten more hair at once, whilst their narrow design lets you get closer to the roots without leaving kinks.

Perfect for both short and long hair, it offers precise temperature control with eleven heat settings ranging from 130°C to 230°C, making it suitable for both delicate and stronger hair types. With a reasonable price and the added bonus of a heat mat that doubles as a protective wrap, this straightener delivers excellent value for money.

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The best premium hair straighteners

The Corrale straighteners may not be new from Dyson, but we still consider them one of the best premium options on the market. With Dyson’s innovative technology, the flexible plates deliver the same high-quality styling results with less heat, reducing breakage by up to 50%. These plates also minimise flyaways by gathering the hair, offering extra comfort and control during styling.

With up to 30 minutes of cordless styling, the Corrale is perfect for on-the-go touch-ups, whether you’re packing it in your handbag or suitcase. It also recharges in just 70 minutes, or you can use it whilst plugged in for continuous styling.

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The best hair straighteners for quick styling

Another classic from 2018, the ghd Platinum+ remains one of our all-time favourite straighteners. They feature 'ultra-zone with predictive technology' which senses your hair's thickness, section size and styling speed – adjusting power accordingly for consistently optimal results. The plates even monitor heat 250 times per second to maintain the perfect styling temperature, helping you achieve smoother, healthier hair with less damage.

They heat up in just 20 seconds and often only need one pass to deliver a sleek finish, which is ideal if you rush around in the mornings.

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The best hair straighteners for hair care

The Revamp iGen Progloss Cordless Ceramic Hair Straighteners are a real treat to use. Despite their slightly long charging time – 3.5 hours to be exact – rhere really isn't anything wrong with these straighteners. Their cordless capabilities make straightening hair much more seamless and you don't have to worry about any cords... so you can even take them with you on the go.

Like other Revamp products, the plates of the Revamp iGen Progloss Cordless Ceramic Hair Straighteners are infused with oils for healthier hair. Our reviewer noticed that her hair smelt great and felt healthy and nourished. It easily tackles frizzy and curly hairs, and the straighteners cool down surprisingly quickly and are backed with intelligent safety features.

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The best wet-to-dry hair straighteners

Unlike conventional hair straighteners that use heated plates, the Airstrait channels precise airflow from 1.5mm apertures located in the device’s arms. This helps to protect your hair’s natural moisture and shine whilst providing styling options for different hair types. It also offers two modes – wet and dry – along with additional settings like 'Cool' and 'Root Drying' for enhanced versatility.

Priced at £499.99, it's no secret that it's a pricey tool. However, you get what you pay for with Dyson, and we couldn't recommend it enough.

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The best cordless hair straighteners

The ghd Unplugged are excellent cordless straighteners for styling whilst on the move. They bring the style, power and practicality we've come to expect from ghd, and packed it into a more petite body. Yes, they're expensive and we'd appreciate longer battery life, but if you're a frequent traveller or always styling on-the-go, then these are the straighteners for you.

Of course, the ghd Unplugged are pretty expensive, so you really need to question whether you need the added flexibility that going cordless creates. If you do most of your styling at home, then we'd recommend buying one of ghd's corded yet still excellent hair straighteners, but if you do find yourself in need of a compact hair styling tool on the go, then the ghd Unplugged can't be beaten.

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The versatile hair straighteners

The Revlon One-Step Air Straight is a budget-friendly 2-in-1 tool that dries, straightens and styles your hair in one go – saving time and eliminating the need for multiple devices.

It uses a concentrated 90°C airflow to style and dry simultaneously, avoiding extreme heat and helping to protect your hair. Whilst it’s not without its flaws, it delivers impressive results for the price, leaving hair looking smoother, healthier and far less frazzled.

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The best hair straighteners for long-lasting results

The ghd Chronos are a true standout when it comes to long-lasting results. Thanks to the brand's HD motion-responsive technology and consistent heat control, it delivers ultra-smooth, sleek hair that holds its shape all day – and often well into the next.

Whether you’re straightening, curling or adding soft waves, styles stay locked in with minimal touch-ups required. Our reviewer found them to be fast, efficient and deliver salon-quality results, making them a worthy investment for anyone who wants their style to go the distance.

The best stylish hair straighteners

Despite some online criticism, we’re genuinely impressed by the new Gtech StyleOnic straighteners. Paired with the DryOnic hair dryer, they mark a strong debut into haircare from a brand traditionally known for its vacuum cleaners.

With a sleek design, thoughtful extras, and features like ceramic tourmaline plates, ionic technology and 10 adjustable heat settings, they deliver smooth, healthy-looking results – even at lower temperatures. Whilst the LED screen is a little bulky, the two stylish colourways more than make up for it, adding a fashionable edge to your hair routine.

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How to choose the best hair straighteners

A good set of hair straighteners should provide frizz-free, polka-straight styling that lasts all day without damaging your hair. They should be thought of as an investment – you get what you pay for – and cheap models end up doing more damage to your hair than good.

However, whether you want the most expensive product on the market or you’re looking for something more affordable, we’ve got you covered with these top recommendations. Of course, before you decide which set to buy, you should consider the specific requirements of your locks – if you have particularly thick hair or a fringe for example.

If you have thin or damaged hair then look for straighteners that have a low temperature or temperature control, so you’re not putting too much strain on your hair. Any ghd options or the Dyson Corrale are great examples of this.

If you have long, thick hair, wider plates might make styling a bit more manageable for you. They're faster and can take on larger chunks of hair at a time. Conversely, if you're looking for some precise styling, then you'll want stylers with a narrow barrel.

One final consideration is whether you travel often. You might want to opt for a lightweight, compact wireless set of straighteners. These are super convenient but often less powerful than their wired counterparts.

How we test the best straighteners

We spend a lot of time reviewing the best hair straighteners, so when it comes to recommending what styler to buy, you can be safe in the knowledge that we'll suggest the best option for you.

We'll usually spend a week or longer testing new hair straighteners, and the review process is fairly straightforward – we use them to straighten and style our hair. This helps us understand their ease of use and how to achieve a desired hairstyle.

It also lets us test whether the hair straighteners damage our hair (yes, we're really putting our bodies on the line here) or whether they leave hair feeling smooth, glossy and healthy.

If the hair straighteners have any advanced features, such as cordless battery life or quick-heat settings, then we'll try these out to test if they work and if they're worth you spending extra money on.

Where possible we'll test the straighteners on different types of hair, including thick long hair, and thinner curly hair. Although, it's worth noting that this isn't always possible.

Once the initial review period is complete, we will publish a full review, give the hair straighteners a star rating, and add an abridged review to this guide.

Best hair straightener FAQs

What temperature should I use to straighten my hair?

It depends on your hair type. Fine or damaged hair should be styled at lower temperatures (130–160°C), whilst medium or normal hair can handle 160–180°C. Thick or coarse hair may need up to 230°C. However, you should always start low and increase gradually if needed to minimise heat damage.

Can I use a hair straightener to curl my hair?

Absolutely – many straighteners double as curling tools. Choose one with rounded edges and slim plates for easier curling, and with the right technique, you can create anything from loose waves to defined curls.

How do I make my straightened hair last longer?

Start with clean, dry hair and use a heat protectant. Straighten in small sections and avoid touching your hair too much afterward. Finish with a lightweight serum or anti-humidity spray, and consider sleeping on a silk or stain pillowcase to maintain the style overnight.

Reviewer Panel

Lizzie Wilmot

Lizzie is T3’s Home Living Writer, with a particular passion for beauty tech – especially hair straighteners. From classic flat irons to the latest smart stylers, she’s tried them all and knows exactly what it takes to turn frizz into flawless.

Joanna Ebsworth

Joanna is T3’s freelance beauty tech expert and has put countless hair straighteners through their paces. With an eye for performance, hair health and styling versatility, she knows how to judge the best of the best.

Bethan Girdler-Maslen

Bethan is Home Living Editor at T3 and a seasoned pro when it comes to spotting the best hair straighteners on the market. Her expert reviews are powered by real-world testing and a constant pulse on the latest trends and innovations in haircare.

Ruth Hamilton

Ruth previously led the Outdoors and Wellness channels at T3, but has since moved over to the Home section at TechRadar. Before the switch, she spent plenty of time reviewing the best hair stylers.

Abbie Hart

Abbie may have moved on to new adventures, but during her time with us, she was always up for testing the latest beauty and grooming tech.