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Straighten dry hair with a flat iron

A section-by-section method for a temporary straighter finish on completely dry hair.

Step by step

  1. Dividing a dry section with the flat iron unplugged on a heatproof mat.
    STEP 1 OF 3

    Prepare dry sections

    • Read your iron’s manual; set up a dry work area away from water with its stand or a suitable heatproof mat.
    • Apply a compatible heat protectant as directed and let all hair dry completely. Detangle before heating.
    • Clip upper hair away; bring a small lower section forward. Practice the pass with the iron unplugged and cold.
  2. Holding the flat-iron handle while guiding its plates along a narrow dry section.
    STEP 2 OF 3

    Glide toward the ends

    • Select the lowest effective setting permitted by your manual and hair condition; allow its directed warm-up.
    • Hold the section apart with one hand. Close the plates on hair with the other, leaving clear space from your skin.
    • Release the guiding hand from the heated path; keep the iron moving toward the ends, then open it to release.
    • Work through fresh sections. Do not pause closed plates on hair or repeatedly chase a perfectly flat finish.
  3. Arranging cooled straight hair while the unplugged iron rests on its mat.
    STEP 3 OF 3

    Cool and put away

    • Stop if hair snags, smokes or sizzles; open the plates, switch off and reassess only after cooling.
    • Switch off, unplug by the plug and leave the iron on its safe rest out of reach while both tool and hair cool.
    • Remove section clips. Clean and store the cooled tool as its manual directs, with the cord loosely arranged.

About 15–40 min hands-on for setup, cold practice, sectioned flat-ironing and cleanup. Start with completely dry, detangled hair. Add protectant drying, warm-up, cooling and breaks.

Practical editorial estimate, not measured. Section count and length change the work; this is not a contact time or reason to repeat passes on finished hair.

You’re done when…

Your chosen sections are released and cool, and the unplugged iron has cooled on its safe rest. A smooth appearance is not evidence of damage-free use.