How to Bleach Your Hair Without Damage

Bleaching your hair is a great way to make your hair stand out, but it’s also harmful to your hair. Fortunately, you can protect and repair your hair to limit damage, whether bleaching blonde or dark hair. The bleaching process is not too complicated, but you need to take it slow to avoid making mistakes. The best way is to condition your hair before applying bleach. In addition, you also need to take care of your hair after bleaching to restore the moisture of your hair.

Table of Contents

Prepare your hair before bleaching

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Use a deep conditioning hair mask daily for a week before bleaching your hair. Bleaching removes moisture from your hair, so you need to add extra moisture to your hair for a few days before bleaching. Buy a deep conditioning hair mask and spread it on your hair as directed. Spread the cream all over your hair and leave it for the recommended amount of time. Rinse off the hair mask with cool water. ^{[1] X Research Source}

Repeat this process every day during the week before bleaching your hair.
Cool water will close the cuticle on the hair shaft, making the hair look shinier.
You can leave the cream on your hair for about 30 minutes.

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Test the reaction with hair bleach 48 hours in advance. Mix a small amount of bleach 48 hours before you plan to bleach your hair. Mix 1 part bleach powder with 2 parts dye/peroxide auxiliaries. Dab a little bleach on your skin and spread it over a few strands of hair. Leave it on for 30 minutes, then rinse it off and check the results. ^{[2] X Trusted Source National Health Service (UK) Go to Source}

Check the hair color to see if it has passed. That way you can guess what your hair will look like after bleaching. If needed, you can adjust the retention time for a lighter or darker color.
Make sure the bleach doesn’t irritate the skin. If you notice skin irritation, you can decide not to use the product or shorten the time the bleach stays on.

Warning: If skin begins to itch or burn, wash off bleach immediately. If the itching persists, you need to see a doctor to be checked.

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Wash your hair 24 hours before bleaching to let your scalp secrete natural oils. The natural oils on the hair will help protect the scalp from being damaged by bleach. To give your skin enough time to produce oil, you should wash your hair 24 hours before you plan to bleach your hair. Use conditioner after shampooing to moisturize your hair. ^{[3] X Research Sources}

If you want, you can also wash your hair 48 hours before bleaching.

Limit damage caused by bleach

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Bleach your hair in the salon for best results. Professional hair salons have better bleaching formulas than products sold outside, so the bleaching process in the salon is also less damaging. Moreover, professional hairdressers also know how to apply bleach so that it is the least harmful to the hair. Make an appointment with your hairdresser to have your hair bleached at the salon to prevent damage. ^{[4] X Research Sources}

Ask your hairdresser how much a visit to the salon can help brighten your hair. They can tell you the best way to get the desired results.

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Look for bleach products with conditioning ingredients if you want to bleach your hair yourself. Use a bleach formulated for your hair type. In addition, you should also choose a high-quality bleach with ingredients that help improve hair quality and maintain hair health. Read bleach labels to find products that claim to help prevent damage. ^{[5] X Research Sources}

For example, Brazilian Bond Builder and Olaplex can be mixed into bleach to help reduce hair damage.

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Use a 10- or 20-vpume dye to limit damage. Low-intensity dye auxiliaries produce weaker bleach and are less damaging to hair. It will take longer to achieve the desired hair color when using vpume 10 or 20 dye auxiliaries, but it will help reduce damage to your hair. Choose a product with a low-intensity dye, or buy bleach and dye separately for easy selection.

You can find 10- or 20-vpume dye auxiliaries at cosmetic stores or online.

Mix bleach at home

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Wrap an old towel over your shoulder to prevent bleach. Bleach may drip when you apply it to your hair. To protect your skin and clothes, you should put an old towel over your shoulder before bleaching your hair. ^{[9] X Research Source}

Choose a towel that you are not afraid to damage. It will be discolored if bleached.
Use a hairdressing gown to protect skin and clothing if applicable. You can find cheap hairdressing gowns at cosmetic stores or online.

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Wear gloves to protect your hands. Bleach can irritate skin and cause chemical burns, so protect your hands with gloves. Use plastic gloves that you can throw away after use. ^{[10] X Research Source}

Wear gloves before mixing bleach ingredients.

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Place 1 part blue or purple bleach in a plastic mixing bowl. Follow the instructions on the product to measure out the powder and place it in a plastic mixing bowl. ^{[11] X Research Source}

Blue or purple powder helps to reduce brassy color in hair after bleaching.
You can find hair bleaching powder and plastic mixing bowls at cosmetic stores or online.
Always use a plastic bowl when mixing bleach, as bleach can react with metal.

Tip: An easy option is to buy a hair bleach kit that comes with both bleach powder and a dye/peroxide aid. These products are available at most cosmetic stores and online.

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Pour 2 parts dye/peroxide auxiliaries into a bowl. Measure out the dye/peroxide auxiliaries according to the instructions on the package and pour into the mixing bowl with the bleach powder. You can see the mixture foaming as the ingredients mix together. ^{[12] X Research Source}

If you have blonde hair, choose a 10-vpume dye.
Use 20-vpume dye aid on light brown hair.
For dark brown or black hair, you may need a 30-vpume or 40-vpume dye. However, it is still best to use the 20-vpume type if you want to limit damage.

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Use a plastic hair dye brush to mix the ingredients. Dip the brush tip into the ingredients and stir to mix the dye/peroxide auxiliaries with the bleach powder. Continue stirring until the bleach is uniform and free of lumps. ^{[13] X Research Source}

You can find plastic hair dye brushes at cosmetic stores or online. Do not use metal utensils, as it may react with bleach.

Apply bleach to your hair

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Bleach your entire hair if you want a uniform color. Split your hair lengthwise, then split it horizontally to create 4 sections. Use plastic clips to secure the upper hair sections. Start dyeing one of the two lower sections of hair, spreading the dye from the ends of the hair to the roots. Repeat this with the other lower section of hair, then move on to the upper sections. Make sure the bleach covers the entire hair from root to tip.

If you have very thick hair, you can divide it into 6 sections to make it easier to spread.
If you find a section of hair too thick, you can divide it into 2 smaller sections to make it easier to spread the bleach evenly. Don’t miss any points.
Try not to let the bleach get on your scalp. Bleach can cause burning or irritation of the scalp if it gets on the skin.

Warning: Always use plastic clips when bleaching your hair. Metal clips can react with bleach and can damage hair.

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Use a highlighter hair dye cap to bleach highlight hair. Cover your head with a highlighter hat, then pull your hair through the openings of the hat. Pull your hair through all the holes or just a few, depending on how many highlights you like. Use a brush to apply bleach to all exposed sections of hair. Remember to apply the medicine only on the hair, not on the hood. ^{[14] X Research Source}

If you put bleach on the hood, it can seep through the openings into the hair inside and can create patchy spots on the hair.

Alternately: Clip the hair into 4 sections if you want to remove highlights from the entire hair or clip into 2 parts if you only want to remove the top hair. Drop the first section of hair down, then use the end of the comb to separate a small strand to remove the highlight. Line a piece of foil under the curl you want to bleach, apply bleach to your hair, then fold the foil over the curl so that the bleach doesn’t get on the other hair. Continue doing this around the head for all the curls you want to highlight.

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Bleach sections of hair of different sizes for a balayage effect. Clip the top section of hair and start with the bottom section. Tuck your hair over your shoulder and use your fingers or a brush to spread the bleach over it. Switch to the other side of your head, take another thin section of hair, and spread the bleach over it. Alternately do this to create highlights for the curls. ^{[15] X Research Source}

Wrap bleached hair in foil to separate the curls, then let the top section down. Apply bleach to the thin top curls to complete the highlights, then wrap the bleached curls with foil.
The balayage method creates more natural highlights than the hood or foil method. Bleached curls can be of different sizes.

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Cover your hair in cling film or a shower cap. Cover your hair to keep the heat inside, helping to increase the effectiveness of the bleaching process. Cover your head with plastic wrap or a regular shower cap to keep the natural heat inside. ^{[16] X Research Source}

You can bleach your hair without a hood, but this step will give it a better handle.

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Check the hair color every 5-10 minutes to see if it is satisfactory. After you have applied bleach to your hair for 5-10 minutes, try wiping off a small amount of bleach to check the color. If the hair color is not satisfactory, leave the bleach in the hair for another 5-10 minutes. Continue testing until you are satisfied with the hair color or the 40-minute time runs out. ^{[17] X Research Source}

Remember that hair will be less damaged if the bleach stays on the hair for a shorter time.

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Let the bleach soak in for up to 40 minutes. Bleach will work immediately, but it takes time to reach the desired shade. Let the bleach work for up to 40 minutes, then rinse. ^{[18] X Research Sources}

Do not leave bleach on your hair for more than 40 minutes, even if the hair color is not as bright as you want, as this can damage and break the hair.
If you are not satisfied with the hair color, you can bleach it again after 10 days. Another way is to go to the salon and have the hairdresser take care of it.

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Wash your hair with shampoo to remove the bleach. Rinse the bleach off with cool water, then massage a dime-sized amount of shampoo into your hair. Rub the shampoo into your hair and scalp to wash away the bleach. Finally, rinse your hair with warm water. ^{[19] X Research Source}

Make sure to completely remove the bleach from your hair. If necessary, you can rub the shampoo again to rinse thoroughly.

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Use a deep conditioner to restore moisture to your hair. After shampooing your hair, apply a deep conditioner to your hair. Leave conditioner on hair for at least 3 minutes, then rinse with cool water. ^{[20] X Research Sources}

Cool water helps close the cuticles on the hair, so it looks smoother.

Bleached hair care

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Use a deep conditioning hair mask daily for a week after bleaching. The bleaching process has taken away the moisture from the hair, so you need to correct this problem by deep conditioning the hair. For optimal results, you should use the deep conditioning hair mask every day for a week after bleaching. Spread the hair mask all over your hair and leave it on for the time recommended on the product packaging, then rinse with cool water. ^{[22] X Research Source}

Always rinse your conditioner out with cool water, as it closes the hair cuticle and makes it shinier.
You can save the hair mask for about 30 minutes.

Tip: You don’t need to wash your hair with shampoo every day. Just using a hair mask is enough.

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Use a hair conditioner weekly. Hair Repair Cream is used to repair damaged hair and make hair shiny. Look for products that claim to restore hair bonds. Apply product to hair and comb hair from root to tip. Leave the cream on your hair for at least 30 minutes, then wash your hair with shampoo. Hopefully your hair will be softer and shinier. ^{[23] X Research Sources}

It is best to leave the hair cream in for a few hours to give it more time to work. You can leave the cream on your hair overnight by wearing a sleeping cap.
Hair restoration cream is available through salons and also outside. While salon treatments are more effective, at-home hair treatments can also help keep your hair healthy.

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Wash your hair with purple shampoo once a week to decolorize the brass. Blonde hair can be brassy or orange, but purple shampoo can fix the problem. Choose a purple shampoo that has a formula that matches your blonde hair color. Use purple shampoo once a week instead of regular shampoo. ^{[24] X Research Sources}

Ask your hairdresser what advice they have for you.
You can buy purple shampoo online or in hair salons.

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Exfoliate hair roots every 4-6 weeks to keep hair color uniform. It is best to bleach the roots before it grows too long and reveals a different hair color. If it takes too long to bleach, you may have to bleach all of your hair to get a uniform blonde color. You should bleach your roots every 4 weeks if your hair is growing fast and every 6 weeks if your hair is growing slowly. ^{[25] X Research Sources}

Try not to let your hairline grow longer than 2 cm.

Advice

There’s no way to bleach your hair without damaging it, but you can limit the damage. ^{[26] X Research Sources}

Warning

Bleach can irritate the skin. If your scalp is itchy or burning, wash off the bleach daily to minimize damage. ^{[27] X Trusted Source PubMed Central Go to Source}

Steps