How to Straighten Your Hair With a Flat Iron: 13 Steps (2024)

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1Preparing Your Hair

2Using the Iron

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Article Summary

Co-authored byMichael Van den Abbeel

Last Updated: August 31, 2024Approved

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Straightening your hair isn't difficult if you pay attention and take your time. A mistake can burn your hair or skin or, possibly, add a crimp to your hair. Avoid these issues with careful preparation and treat your hair with a heat protection product prior to ironing.

Part 1

Part 1 of 2:

Preparing Your Hair

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  1. 1

    Wash and dry your hair, leaving it slightly damp.[1] Blow drying may make your hair a little straighter already, saving you some time.[2]

  2. How to Straighten Your Hair With a Flat Iron: 13 Steps (5)

    2

    Brush or comb your hair. Remove all tangles.[3] The heat protectant will distribute more evenly if you brush or comb thoroughly beforehand. There should definitely not be any tangles left by the time you start straightening, or the process will leave crimps and knots.

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  3. How to Straighten Your Hair With a Flat Iron: 13 Steps (6)

    3

    Apply heat protectant.[4] Spray lightly onto your entire head of hair. Quickly comb your hair a second time to distribute the heat protectant evenly.[5]

    • Damp hair absorbs heat protectant more effectively, but you can still apply it to dry hair.
    • You may use argan oil or other natural heat protectants instead, but set the iron to a low temperature to protect your hair further. This will make it less effective.
  4. How to Straighten Your Hair With a Flat Iron: 13 Steps (7)

    4

    Finish drying. Blow-dry or allow to air dry completely. Never straighten your hair while wet, as the iron may burn or damage wet hair.

  5. 5

    Let the iron warm up. Plug in the flat iron and let it heat up for three to five minutes, while you get started on the next step.[6] Choose a temperature setting based on your hair:

    • For thin hair, use the lowest heat setting.
    • For average hair thickness, use medium heat (about 300–350ºF / 150–177ºC).
    • For thick hair, use high heat (400–450ºF / 200–232ºC). To be safe, you may want to start lower and work your way up until you can straighten the hair in one pass.
    • If you aren't using heat protectant, use low temperatures only. Be aware that there is a high risk of burning.[7]
  6. 6

    Section off your hair. The thicker the hair, the more sections you need. People with thin hair can skip this step or divide it into two to four sections, while people with thick hair may need many more. Clip every section out of your way, except for one section of the lowest layer.[8]

    • You'll be working with locks of hair 1–2 inches (2.5–5 cm) thick. Each section can include several locks of hair, as long as it's convenient and easy to separate and hold one lock at a time.
    • Section off the top section of your hair by lifting it and tying or clipping it in a half ponytail. You'll need total access to the lower layers of hair.
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Part 2

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Using the Iron

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  1. 1

    Separate a lock of hair. Starting with the lowest layer of hair, separate a lock of hair 1–2 inches (2.5–5 cm) wide. This should be small enough that you can fit the flat iron around it easily, and straighten it in one pass.

  2. 2

    Clamp the iron above the roots. Place your flat iron 1–3 inches (2.5–7.5 cm) above your scalp. Close the two heated sides together, with the hair between them. Straightening too close to your scalp may damage the roots or burn your scalp.[9]

    • Be sure not to clamp too firmly, as this will create a ridge at the top of your hair. Leaving the iron in one place for too long will also cause a ridge.
    • If there is excess hair falling out of the iron, open the iron and try again with a smaller amount of hair.
  3. How to Straighten Your Hair With a Flat Iron: 13 Steps (13)

    3

    Run the iron down the length of your hair. Slowly run the iron down the length of your hair. Keep the same amount of pressure on the hair at all times. Don't twist or move the iron from its path, or you may end up with crimps in your hair.

    • It is normal to see steam coming from your hair and the iron. Your hair is not burning; this is just the heat protectant evaporating a little.
    • If you see a lot of steam, or smell burning hair, move the iron more quickly.
    • If your hair is particularly curly or frizzy, start with a few short strokes near the top, before dragging slowly as described.
  4. How to Straighten Your Hair With a Flat Iron: 13 Steps (14)

    4

    Repeat if necessary. If the lock of hair isn't straight after the first try, go over it a second time. If this keeps happening, use smaller locks of hair or raise the iron temperature.

    • Multiple passes with a low-temperature iron can cause more damage than a single pass with a high-temperature iron.
  5. How to Straighten Your Hair With a Flat Iron: 13 Steps (15)

    5

    Repeat with all remaining locks. Once you've finished one section, unpin the next and repeat. Work from the lowest layers of hair up to the surface.

    • Pay extra attention to the very back of your head. It's easy to miss a kink hiding out of your sight.
  6. How to Straighten Your Hair With a Flat Iron: 13 Steps (16)

    6

    Smooth down your hair (optional). If you're left with a few flyaway hair strands, try smoothing them down with one of the following:[10]

    • Rub in a drop of hair oil, about the size of a pea or even smaller.
    • Spray a little hairspray over the flyaway strands and comb them down. You may apply hairspray over all your hair to protect from wind and moisture. Hold the can 12 to 14 inches (30–38 cm) away from your hair.
  7. 7

    Finished.

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Expert Q&A

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  • Question

    How can I protect my hair when I straighten it?

    Michael Van den Abbeel
    Professional Hair Stylist

    Michael Van den Abbeel is a Professional Hair Stylist and the Owner of Mosaic Hair Studio and Blowout Bar in Orlando, Florida. He has been cutting, styling, and coloring hair for over 17 years. Michael loves showing his clients how to wash and wear their hair easily and effortlessly. Mosaic Hair Studio and Blowout Bar is recognized as a Diamond Top Tier level Wella salon.

    Michael Van den Abbeel

    Professional Hair Stylist

    Expert Answer

    Apply a heat protectant spray to your hair before you start straightening it. Be careful though since you can still damage your hair if your flat iron is too hot.

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    Not Helpful 6Helpful 10

  • Question

    Can you flat iron curly hair?

    Michael Van den Abbeel
    Professional Hair Stylist

    Michael Van den Abbeel is a Professional Hair Stylist and the Owner of Mosaic Hair Studio and Blowout Bar in Orlando, Florida. He has been cutting, styling, and coloring hair for over 17 years. Michael loves showing his clients how to wash and wear their hair easily and effortlessly. Mosaic Hair Studio and Blowout Bar is recognized as a Diamond Top Tier level Wella salon.

    Michael Van den Abbeel

    Professional Hair Stylist

    Expert Answer

    Yes! You can use a flat iron to straighten your curly hair. Flat irons work on both curly and wavy hair.

    Thanks! We're glad this was helpful.
    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission.Support wikiHow

    YesNo

    Not Helpful 3Helpful 7

  • Question

    Do I really need a heat protectant?

    Michael Van den Abbeel
    Professional Hair Stylist

    Michael Van den Abbeel is a Professional Hair Stylist and the Owner of Mosaic Hair Studio and Blowout Bar in Orlando, Florida. He has been cutting, styling, and coloring hair for over 17 years. Michael loves showing his clients how to wash and wear their hair easily and effortlessly. Mosaic Hair Studio and Blowout Bar is recognized as a Diamond Top Tier level Wella salon.

    Michael Van den Abbeel

    Professional Hair Stylist

    Expert Answer

    Yes, it's best to use heat protectant when you're using heat to style your hair. If you don't have a heat protectant, stick to low temperatures to avoid damaging your hair.

    Thanks! We're glad this was helpful.
    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission.Support wikiHow

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    Not Helpful 1Helpful 12

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      Tips

      • Both curly and wavy hair can be straightened using a flat iron.[11]

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      • Take your time. A slow, thorough job will last longer than a quick fix, but will have much better effects.

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      • If you have bangs, straighten them in the opposite direction to add more volume. For examples, if you wear your bangs to the left, pull them to the right while you apply the flat iron, and flip them back to the left when you're finished.

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      Warnings

      • Wait at least a couple days between straightening sessions. No matter how much you use heat protectant & conditioner, this will damage your hair over time.

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      • Be careful when picking up the iron and holding it near your scalp. It can cause a painful burn.

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      Things You'll Need

      • High-quality flat iron
      • Heat protectant
      • Hair clips, ties, or pins
      • Hairspray (optional)

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      References

      1. https://www.today.com/style/how-wash-hair-correctly-tips-experts-t111714
      2. https://www.marieclaire.com/beauty/news/a13765/blowdry-mistakes-you-need-to-stop-making/
      3. Michael Van den Abbeel. Professional Hair Stylist. Expert Interview. 7 January 2019.
      4. Michael Van den Abbeel. Professional Hair Stylist. Expert Interview. 7 January 2019.
      5. https://moknowshair.com/heatprotectants/
      6. https://www.huffpost.com/entry/flat-iron-tips_n_1316212
      7. Michael Van den Abbeel. Professional Hair Stylist. Expert Interview. 7 January 2019.
      8. https://www.teenvogue.com/story/top-ten-flat-iron-mistakes
      9. https://www.liveabout.com/flat-iron-success-tips-for-black-hair-400456

      More References (3)

      1. https://www.liveabout.com/how-to-use-a-flat-iron-346061
      2. Michael Van den Abbeel. Professional Hair Stylist. Expert Interview. 7 January 2019.
      3. https://www.goodhousekeeping.com/beauty/hair/how-to/g3246/flat-iron-hacks/

      About This Article

      How to Straighten Your Hair With a Flat Iron: 13 Steps (29)

      Co-authored by:

      Michael Van den Abbeel

      Professional Hair Stylist

      This article was co-authored by Michael Van den Abbeel. Michael Van den Abbeel is a Professional Hair Stylist and the Owner of Mosaic Hair Studio and Blowout Bar in Orlando, Florida. He has been cutting, styling, and coloring hair for over 17 years. Michael loves showing his clients how to wash and wear their hair easily and effortlessly. Mosaic Hair Studio and Blowout Bar is recognized as a Diamond Top Tier level Wella salon. This article has been viewed 281,848 times.

      17 votes - 76%

      Co-authors: 22

      Updated: August 31, 2024

      Views:281,848

      Categories: Hair Care Tools | Straightening Hair

      Article SummaryX

      Before you straighten your hair with a flat iron, brush your hair to remove any tangles and spray it all over with a heat protectant. Divide your hair into sections, then clamp the flat iron on a 1-2 inch section of hair near the roots and slowly glide it all the way down the length of the hair. Don’t leave the straightener in one place for too long, as it can burn your hair. Continue this process until you’ve straightened all of your hair. For tips on what temperature setting to use for your hair, read on!

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      • How to Straighten Your Hair With a Flat Iron: 13 Steps (30)

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        Jun 26, 2017

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