To use a curling iron, set fine hair to 150–180°C and thick or coarse hair to 180–200°C, work in 2.5cm (1-inch) sections, wrap each section away from your face for 8–12 seconds, then release and let the curl cool for 60 seconds before brushing. A 25mm barrel gives classic curls; 32mm gives loose waves.
This guide walks you through preparing your hair, picking the right barrel size and temperature, and the exact wrapping technique for long-lasting curls — plus how to troubleshoot curls that fall flat.
Step 1: Prep and protect your hair
Always curl clean, fully dry hair. Damp hair can sizzle and break at high heat. Spray a heat protectant evenly from mid-length to ends — most protectants shield up to around 230°C. Brush through to remove tangles, then divide hair into 3–4 clipped sections so you work methodically from the bottom layers up.
Step 2: Choose your barrel size and temperature
Barrel diameter controls curl tightness, and temperature should match your hair type, not the look. Fine or color-treated hair holds at lower heat; thick, coarse, or resistant hair needs more.
| Barrel size | Curl result | Best for |
|---|---|---|
| 19mm | Tight, springy curls | Short hair, ringlets |
| 25mm | Classic bouncy curls | Most hair lengths |
| 32mm | Loose waves | Medium to long hair |
| 38mm | Soft, beachy waves | Long hair |
| Hair type | Recommended temperature |
|---|---|
| Fine or damaged | 150–170°C |
| Normal/medium | 170–185°C |
| Thick or coarse | 185–200°C |
Step 3: Wrap, hold, and release
Take a 2.5cm section. Hold the iron vertically with the clamp facing you, place it mid-shaft, and wrap the hair around the barrel away from your face. Keep the ends out of the clamp to avoid kinks. Hold for 8–12 seconds — closer to 8 for fine hair, 12 for thick hair — then gently slide the iron out.
Step 4: Cool, then set
Catch each warm curl in your palm and pin it to your head for 60 seconds. Cooling in a coiled shape is what locks the curl in. Once all curls are cool, remove the pins, rake through with your fingers (not a brush, which loosens definition), and finish with a light mist of flexible-hold hairspray.
Common mistakes to avoid
Curling sections wider than 2.5cm prevents even heating. Wrapping toward your face on both sides makes curls collapse into each other. And brushing immediately after release pulls the curl out before it sets — always let it cool first.
Frequently asked questions
What temperature should I use on a curling iron?
Use 150–170°C for fine or damaged hair, 170–185°C for normal hair, and 185–200°C for thick or coarse hair. Start lower and increase only if the curl does not hold.
How long do I hold hair on a curling iron?
Hold each section for 8–12 seconds. Fine hair needs closer to 8 seconds; thick or resistant hair needs up to 12. Holding longer than that risks heat damage without adding hold.
Why do my curls fall out so quickly?
The most common cause is brushing before the curl cools. Pin each warm curl to your head for 60 seconds to set its shape, and finish with a flexible-hold hairspray.
Should I curl toward or away from my face?
Curling away from your face is the most flattering and opens up the look. For a more natural, mixed finish, alternate directions section by section.
Ready to upgrade your styling kit? Explore our Hair Styling & Beauty Tools collection, and if you prefer a no-clamp approach, see our guide on how to use a hair straightener brush. Every order ships with fast 2-day delivery across Lebanon and free shipping on orders over $48.