How to Prepare Your Hair for Bleaching

Bleaching your hair makes it lighter and blonder by chemically reducing the amount of pigment in your hair's strands. Bleach is hard on your hair, so take good care of it. Minimize use of chemicals and heat, and maximize use of moisturizing and protein-boosting treatments. You will want to treat your hair especially well in the weeks before you dye.

Part 1
Part 1 of 2:

Minimizing Damage Before Your Dye

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  1. How.com.vn English: Step 1 Get a hair consultation.
    Talk to a professional about your treatment plan. Every head of hair has its own history and its own needs. If you plan to bleach in a salon, the stylist who will bleach your hair may agree to see you for a quick consultation free of charge.
    • You may need multiple visits before your hair is bleached to the right shade. Talking to your stylist beforehand will help you decide.
    • Some questions you can ask include: "Will this damage my hair badly? What products should I be using before and after I bleach it? Will it take more than one appointment to get to the color I want?"
    • Have your stylist test bleach on a strand of your hair. If you are planning to bleach your hair at home, test the bleach on your hair a few days before you bleach. If you are unsatisfied with the color or texture of the strand, take yourself in and consult with a stylist.
    • Ask the stylist if the salon sells any Olaplex treatment products. These salon-grade products are designed to protect and rebuild hair before, during, and after intense chemical treatments like bleaching.[1]
  2. How.com.vn English: Step 2 Wait for your hair to heal.
    If you recently treated your hair with any chemicals, wait to bleach. If you have recently dyed, highlighted, permed, or relaxed your hair, wait a minimum of two weeks before bleaching. For best hair health, wait a month or longer before you bleach.[2] Wait even longer if your hair reacted strongly to the treatment.
    • Hair that is already suffering (brittle, dry, breaking) should not be bleached.
    • Keep in mind that the darker your hair is, the more damage it will sustain in the bleaching process. People with darker hair tend to have more trouble both getting their hair to the desired shade (because there's so much difference between the starting and finishing shades). Long term bleaching can also cause thinning and irreparable damage. Because the bleaching process is less arduous on lighter coloured hair, these effects are not as common though the risks are still there, because less bleach is used and often less frequently.
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  3. How.com.vn English: Step 3 Reduce heating tools in the week before bleaching.
    Reduce or stop using a curling iron, hot rollers, flat iron, blow dryer or other heating tools. Heat tools damage hair, and bleach is already going to be hard on it.
    • Hair that is natural, not treated, is healthier and will suffer less from bleach.
  4. How.com.vn English: Step 4 Stop washing your hair.
    Don't wash your hair the day of the appointment. In fact, it's healthier for your hair to be a little oily when you bleach. Don't wash your hair for two or more days before bleaching..
    • Bleach, unlike some hair dyes, does not need to go on clean hair. Having dirty hair isn't going to stop the bleach from distributing evenly.[3]
  5. How.com.vn English: Step 5 Save money for good products.
    There are a lot of products designed specifically for preserving and/or prolonging bleached and blonde hair, so it's a good idea to make sure that you can afford and access good products for caring for your new hair - before you make the jump. Some salons will sell it at touchups, but it's a lot cheaper to get something at the supermarket. Similarly, extra care needs to be taken with styling because the bleach strips the hair and makes it weaker, even with proper care, so if you're used to (for example) heat curling, consider also adding a heat protection product or non heat styling products to your repertoire.
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Part 2
Part 2 of 2:

Nourishing Your Hair with Natural Oils

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  1. How.com.vn English: Step 1 Start applying oil to your hair.
    Coconut oil in particular strengthens the proteins in your hair but avocado and argan oils are also great for looking after damaged or treated hair.[4] Starting before you bleach will help your hair tolerate and absorb the bleach better. In particular, the night before you dye your hair, melt half a cup or more of coconut oil in a saucepan or in the microwave. Wait for it to cool, then massage it into your hair. Sleep with a plastic shower cap over it, or cover your pillow with an old towel.
    • You'll get pretty oily, but don't worry: coconut oil is good for your skin, too.
    • If you're bleaching at home, you can re-apply the oil before you apply the bleach. Don't wash it out.[5]
    • After you've dyed your hair, continue to look after it by applying oil every day or two. Massage the oil into your hair, starting at the ends and ending near the roots.
  2. How.com.vn English: Step 2 Start using a mask.
    Once or twice a week, apply a mask to your hair. Make a mask at home by mixing any combination of coconut oil, olive oil, yoghurt, honey, bananas, avocadoes, and egg. Blend together and wear in your clean, dry hair for 30 minutes.[6] For best results, start this routine as soon as you know you are going to bleach your hair, and maintain it after you have bleached.
    • You can also buy professional masks and deep conditioners.[8]

    Tip: Many hair care professionals recommend using masks instead of washing with conditioner, based on their power to moisturize and strengthen damaged hair.[7]

  3. How.com.vn English: Step 3 Apply oil daily.
    Oils such as coconut, argan and avocado are great for healing color-treated, bleached, and fried hair.[9] If you don't have time to make a mask, just massage some oil in, starting at your ends and ending at your roots. Start applying oil as soon as you know you are going to bleach, and maintain it in your routine.
  4. How.com.vn English: Step 4 Finished.
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Community Q&A

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  • Question
    Can I bleach my hair if a have a burn from the curling iron at the top of my head?
    How.com.vn English: Community Answer
    Community Answer
    No, I wouldn't recommend it. The bleach could irritate the burn and make it worse or cause infection. When bleaching or coloring, you don't want to have any kind of lesions or open wounds on your scalp.
  • Question
    Can I bleach hair that I've applied oil to without washing off the oil?
    How.com.vn English: Community Answer
    Community Answer
    Yes, if anything it will lessen the damage of the bleach without affecting the results.
  • Question
    When I get my hair bleached, after I get it done and go home, can I wash it that same night?
    How.com.vn English: Community Answer
    Community Answer
    You can, but it's probably best to wait until the next day, unless you're worried there's still some bleach residue in there.
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      Tips

      • Save up money to get it professionally done, it always looks better if it's done by someone with experience, and sometimes a good job can be expensive.
      • Choose a conditioning dye if you're bleaching your hair to dye it another colour.
      • Oil and masks are a boon to hair that will be bleached, has been bleached, or never will be bleached.
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      About This Article

      How.com.vn English: Arthur Sebastian
      Co-authored by:
      Professional Hair Stylist
      This article was co-authored by Arthur Sebastian. Arthur Sebastian is the Owner of Arthur Sebastian Hair Salon in San Francisco, California. Arthur has worked as a hair stylist for over 20 years and received his Cosmetology License in 1998. He believes that the true work of a successful hair stylist comes from passion and a love for hairdressing. This article has been viewed 606,746 times.
      40 votes - 95%
      Co-authors: 14
      Updated: September 16, 2021
      Views: 606,746
      Article SummaryX

      To prepare you hair for bleaching, make sure you haven’t put chemicals in your hair for at least 2 weeks prior to bleaching. In addition, try to avoid using heating tools for the week before bleaching, and don’t wash your hair for the last 2 or 3 days. The oil will not affect the treatment. In fact, you should start applying coconut oil to your hair every day to help it heal, and keep applying it after your hair has been bleached. Scroll down to learn how to properly use masks and conditioners!

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      Thanks to all authors for creating a page that has been read 606,746 times.

      Reader Success Stories

      • How.com.vn English: Kiara

        Kiara

        Aug 10, 2021

        "I had put a conditioning mask on my hair the night before and was unsure if I had to wash it out prior to bleaching..." more
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