Topic
Heat and technique
Tool makers publish typical temperature ranges by hair type: lower for fine or damaged hair, higher for thick or coarse hair. Start at the low end and go up only if the style does not hold.
- Fine, thin or damaged
- 250 to 300 F (121 to 149 C)
- Thick or coarse
- 380 to 450 F (193 to 232 C)
The temperature that works depends on hair type and on the tool. Typical maker guidance is 250 to 300 F for fine, thin, damaged or color-treated hair, 300 to 380 F for normal hair and 380 to 450 F for thick or coarse hair. The temperature guide shows the range in F and C.
Section size matters as much as heat. Thin sections, about an inch wide, heat through in one pass. Thick sections need more passes or more heat to do the same job.
Let curls cool before you touch them: a curl sets as it cools. Pin larger curls while they cool if you want them to last longer.
Common mistakes
- Turning the heat up instead of taking smaller sections.
- Using a plate tool on damp hair.
- Skipping a heat protectant product when the tool maker recommends one.
Pages on this topic
- How to use a flat iron correctly, step by stepHow to use a flat iron the right way: prep, sectioning, temperature, one slow pass with tension, and how to finish so the style lasts longer.How-to
- How to use a curling iron for beginnersHow to use a curling iron step by step: sectioning, barrel direction, how long to hold, and how to angle the iron for tight curls, loose curls or waves.How-to
- How to flat iron short hair, pixies and bobsHow to use a straightener on short hair: narrow plates, small sections, bending the ends, keeping lift at the crown, and tips for men's short hair.How-to
- Why your hair won't stay straight after a flat ironWhy hair won't straighten or stay straight: damp hair, humidity, fast passes, big sections, low heat for your texture, buildup and products. Fixes for each.Fix
- Flat iron temperature guide by hair typeWhat temperature should a flat iron be? Typical maker ranges for fine, normal and thick hair in °F and °C, fixed-heat irons explained, and how to pick a start.Explainer
- Can you use a flat iron on wet or damp hair?Can you straighten wet hair? Why makers say plate irons need dry hair, what happens on damp hair, and which wet to dry tools are designed for it instead.Explainer
- 1 inch vs 1 1/4 inch curling iron1 inch vs 1 1/4 inch curling iron: the curl each barrel makes on short, medium and long hair, with T3 and ghd irons in both sizes compared from listings.Comparison
- How to use a curling wand for beginnersHow to use a curling wand without a clamp: prep, sectioning, wrap direction, hold time, the heat glove and how to set curls so they last.How-to
- How to get beach waves with a curling iron or wandBeach waves with a curling wand or iron: barrel size, leaving the ends out, alternating direction and breaking curls up so loose waves look natural, not neat.How-to
- How to flat iron natural hair (silk press steps)Flat iron natural, curly or 4C hair at home: washing, blow drying, small sections, the chase method, heat ranges and keeping a silk press smooth longer.How-to
- How to curl short hair with a curling ironHow to curl short hair, bobs and pixies: the right barrel size, small vertical sections, working near the root safely and making curls last.How-to
- How to curl and wave hair with a flat ironCurl or wave hair with a flat iron: the twist-and-glide method for curls, the flat wave method, section sizes, heat ranges and how to make the shape last.How-to
- Hair won't curl with a curling ironWhy hair will not curl or hold a curl with a curling iron or wand: barrel too big, sections too thick, heat too low, product and cooling time, fixed in order.Fix
- Flat iron plate sizes: which width do you needFlat iron sizes explained: 1/2, 1, 1 1/4, 1 1/2 and 2 inch plates matched to hair length and thickness, with real models in each width.Explainer
- Does a flat iron damage hairDoes straightening damage hair? What heat from a flat iron does to hair, the habits tool makers and hair care groups commonly recommend, and features that help.Explainer
- Curls falling out fast: how to make them lastWhy curls fall out fast and how to make them last: let curls cool, use smaller sections and barrels, start with clean dry hair and set them right.Fix
- Curling iron temperature guideWhat temperature to use on a curling iron or wand: typical F and C ranges for fine, normal and thick hair, why curling runs cooler, and fixed-heat tools.Explainer
- Curling iron size guide: barrel sizes and resultsCurling iron and wand sizes from 3/8 to 2 inches: what curl each barrel makes, in inches and mm, and which size fits short, medium and long hair.Explainer