How to Curl Hair With Straighteners: 5 Steps to Waves That Last All Day

July 20, 2026

Yes, you can curl your hair with straighteners, and once you have the technique down it is often faster than using a curling wand. The short version: take a section of hair about 2 to 3 cm wide, clamp the straighteners near the root, rotate them a half turn away from your face, then glide slowly down to the ends in one smooth movement. The slower the glide, the tighter the curl. Let each curl cool completely before you touch it. That cooling step, more than anything else, is what makes the difference between waves that last all day and curls that drop before lunch.

Can you really curl hair with straighteners?

You can, and hairdressers do it constantly. A straightener curl works because heat makes the hydrogen bonds inside each strand temporarily flexible. When you bend warm hair around the hot plates and let it cool in that shape, the bonds reset and the curl holds.

The shape of the curl comes from three things you control: the width of the section, the angle of rotation, and the speed of the glide. Narrow sections and a full half turn give defined curls. Wider sections and a gentler turn give soft, beachy waves. That is why one tool can produce everything from polished ringlets to barely-there bends, and it is the reason most stylists reach for straighteners rather than carrying a separate wand for every curl size.

Plate quality matters more for curling than it does for straightening, because the hair is in contact with the plates for longer on each pass. Ceramic plates that hold an even temperature will give you a smooth, consistent curl. Cheap plates with hot spots grab, snag and leave kinks.

What temperature should straighteners be for curls?

Lower than you think. Most people curl at the same maximum heat they use for straightening, and it is unnecessary. Curling bends the hair rather than pulling it straight, so it needs slightly less heat to set. Research on thermal styling shows that hair surface damage increases sharply with temperature, so use the lowest setting that holds a curl for you (heat alters the hair shaft measurably once temperatures climb).

Hair type	Temperature for curls	Glide speed
Fine or colour-treated	150 to 170°C	Medium
Normal, medium thickness	170 to 190°C	Slow and steady
Thick, coarse or very curly	190 to 220°C	Slow

An adjustable temperature dial is non-negotiable for this. If your straighteners have one fixed heat, they were designed for one hair type, and it is probably not yours.

The right tool for the job

Super Ionics Straightener

Floating ceramic plates and a 170 to 230°C dial, with ionic conditioning that cuts static as you curl.

£32.99 Shop now →

How do you curl hair with straighteners step by step?

Step 1: Start with completely dry, prepped hair

Straighteners and damp hair do not mix. Water inside the strand boils against hot plates and damages the cuticle from within. Dry your hair fully, apply a heat protectant from mid-length to ends, and brush through so every section is tangle-free. If you want extra grip, skip washing that morning: day-old hair holds a curl better than freshly washed.

Step 2: Section like a hairdresser

Divide your hair into a bottom, middle and top layer, and clip the upper layers out of the way. Work with sections 2 to 3 cm wide. Bigger sections heat unevenly, and uneven heat is the single most common reason straightener curls fail.

Step 3: Clamp, turn, glide

Clamp the straighteners a few centimetres from the root. Rotate them 180 degrees away from your face, so the length of hair wraps over the top plate. Then glide down to the ends in one slow, continuous movement. Do not stop partway: pausing prints a line into the curl. The whole pass should take about three to four seconds.

Step 4: Cool before you touch

Release the curl into your palm, let it sit for a moment, then drop it and leave it alone. Hair sets its shape as it cools, not while it is hot. Touching, brushing or tucking warm curls behind your ear is how a 20-minute style becomes a 2-hour memory.

Step 5: Break up and finish

Once everything is cool, rake your fingers gently through the curls or use a wide-tooth comb for a softer, blended wave. Finish with a light mist of flexible hairspray. Alternate the direction of curls around your head (away from the face at the front, mixed at the back) for a natural rather than uniform look.

Why will my curls not stay in?

If your curls drop within the hour, one of these is almost always the cause:

The section was too big. Heat never reached the middle of the strand, so half the hair never actually curled.
You touched the curl while it was warm. The shape had not set yet. Let curls cool untouched.
The temperature was wrong for your hair. Too low and the bend never takes; too high and the hair is left dry and limp. Use the table above as your starting point.
Product overload. Heavy oils and serums before styling weigh curls down. Heat protectant is all you need beforehand.
The plates heat unevenly. Budget tools with hot spots grab in some places and slip in others. If your curls look different on every pass, the tool is the problem, not your technique.

Fine hair that refuses to hold any style may also do better with a two-in-one tool that uses infrared heat, which warms the strand from the inside rather than scorching the surface.

Gentler on fine hair

Infrared Ion Hair Straightener

A 2-in-1 straightener and curler that pairs infrared heat with negative ions, designed for curls with less surface damage.

£32.49 Shop now →

Straighteners or a dedicated curler: which should you choose?

Straightener curls are fast, versatile and mean one less tool on the shelf. But if you find the wrist rotation awkward, or you want identical, repeatable curls every single time, a dedicated curler removes the technique from the equation entirely. Barrel size decides the result: 25 mm barrels give defined curls, 32 mm and up give loose waves and volume.

The honest answer for most people: learn the straightener technique first, because you already own the tool. If you fall in love with curls as your everyday look, a multi-barrel curler earns its place.

For every curl size

7 in 1 Curling Master

Seven interchangeable tourmaline ceramic barrels in one kit: tight curls, soft waves and big volume from a single handle.

£39.29 Shop now →

Frequently asked questions

Can you curl short hair with straighteners?

Yes, and slim straighteners actually work better than most curling wands on short hair, because the plates can grip lengths a barrel cannot wrap. Use smaller sections, start the clamp closer to the root, and rotate a full half turn. On very short hair, aim for bends and texture rather than full ringlets.

What is the best way to curl hair for beginners?

Start with the wave technique rather than the ringlet: clamp mid-length, turn the straighteners half a turn, glide, then repeat in alternating directions down the same strand. Waves are far more forgiving of hesitation than ringlets, and mistakes just look like texture.

How long do straightener curls last?

With dry hair, the right temperature, and curls left to cool untouched, expect a full day, and often a soft second-day wave. Fine, freshly washed hair holds for less time; a light flexible hairspray and day-old hair both extend it.

Is it bad to curl your hair with straighteners every day?

Daily heat at high temperatures will dry out any hair type over time. If you style daily, keep the temperature at the low end of your range, never skip heat protectant, and give your hair heat-free days when you can. Better plates at a controlled temperature cause meaningfully less damage than cheap plates run hot.

Should hair be wet or dry when curling with straighteners?

Completely dry, always. Straighteners on damp hair boil the moisture inside the strand and cause lasting damage. If you are short on time, rough-dry fully first; a proper blowout base also gives curls more body (see our guide to getting a salon blowout at home).