You can curl hair with a flat iron by clamping a small dry section near the roots, rotating the iron 180 degrees away from your face, and gliding it slowly down the length.
A flat iron caught mid-glide without a twist leaves a dent, not a curl. The difference between a crease and a real bend comes down to two things beginners skip: how small the section is, and how far you rotate the barrel. Get those right and a straightener handles curls and waves as well as any dedicated curling wand.
This covers the whole beginner sequence — prep, sectioning, the rotation, and how to finish so the curl holds.
What You Need Before The First Section
Clean, fully dry hair and a heat protectant are non-negotiable; the method simply doesn’t work on damp hair, and unprotected heat is how beginners burn strands.
- Fully dry hair. Wash and dry first. Damp hair won’t hold a bend and sizzles under the plates.
- Heat protectant spray or serum. Apply from mid-length to ends before the iron touches anything.
- A fine-tooth comb or clips. Both make sectioning far easier than working freehand.
- A straightener with rounded edges. Sharp-edged plates crease hair as you rotate.
Set the iron to a moderate heat. The technique depends on tension and timing, not maximum temperature, so a lower setting is friendlier while you’re learning and less likely to scorch a section you hold too long.
How to Curl Hair with a Straightener for Beginners: Step by Step
Section the hair, clamp a small piece close to the roots, rotate the iron about 180 degrees away from your face, then glide it slowly down; that single sequence is the entire method.
The Full Sequence
- Comb the hair smooth, then clip everything except a one- to two-inch section at the bottom of one side.
- Clamp the iron a couple of inches from the roots. Close it firmly — a loose grip slides and leaves kinks.
- Rotate the iron about 180 degrees, turning the barrel away from your face so the hair wraps the plate.
- Glide the iron slowly down to the ends, keeping steady tension the whole way.
- Release and let the curl hang in a loose spiral. Don’t touch it while it’s hot.
- Repeat, working section by section around the head.
Two adjustments change everything. Start the clamp near the scalp for high-volume curls, or start partway down the strand for a relaxed, beachy look. For soft waves instead of defined curls, use a 90-degree half-turn rather than the full 180.
| Section Size | Result | Best For |
|---|---|---|
| 1 inch (thin) | Tight, defined curls | Bouncy ringlets |
| 2 inches | Medium, natural curls | Everyday styling |
| 3 inches and up | Loose waves | Beachy, undone texture |
| 180-degree turn | Full curl | Volume and definition |
| 90-degree turn | Soft wave | Relaxed day-to-day look |
If your iron has an adjustable dial, check the official guidance for your model, since plate coating and heat range vary. If the claw clips and comb are ready and you’d rather upgrade your iron, our roundup of the best curling iron straightener combos covers the models worth the counter space.
Why Curls Fall Flat (And The Two Fixes)
Curls usually drop because they were brushed or handled while still warm; letting them cool fully before touching is what locks the shape in.
After each section releases, the curl needs a moment to cool and set. Once the whole head is done, run your fingers or a wide brush through the spirals to soften them into waves, then finish with hairspray or a texturizing spray to hold the shape. Skip the cool-down and you’ll brush out straight hair with a kink in it.
Kinks and creases trace back to two habits: too large a section, or a jerky glide. Keep the tension firm and move the iron in one smooth pass. A heat protectant and a moderate temperature setting protect the hair during that pass.
References & Sources
- Dyson. “How to Curl Your Hair Using a Hair Straightener.” Step sequence and rotation technique.
- Remington. “S5700AU Instruction Manual.” Section sizing guidance and the tighter-curl note.
- Women’s Health. “How to Curl Hair with a Hair Straightener.” Finishing and cool-down steps.
