How to bleach blue hair to get the color out? From blue to blonde in 4 steps

before and after

Do you have blue colored hair and want to get the color out? Before bleaching your hair, you should follow these 4 steps. 

  • The first step is to fade the blue dye with a clarifying or anti-dandruff shampoo.
  • The second step is to assess the hair’s condition to ensure that it can withstand the bleaching.
  • The third step is to prepare the hair for bleaching.
  • Finally, the last step is bleaching.


With this 4-step process, you will go from blue hair to blonde, or to the color you had before applying the blue dye.

Ready to start getting the blue out?


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Are you tired of the blue color in your hair and want to go back to blonde?

Well, not everything is as simple as it seems. I know you think that, as you applied a semi-permanent dye, the color will disappear by magic after a few washings.

But, unfortunately, that is not the case.


 Although semi-permanent dye fades with washing and you can change color without damaging your hair, this does not happen with some very intense colors. 

Guess what?


The blue color is one of them.

Blue, chewing gum pink, deep green, and purple all contain a greater amount of pigments.

That’s why, if you bleach your blue hair, without having firstly faded the color, your hair will become bluish-green, and you won’t be able to bleach it anymore unless you want to end up with burned hair.


 So, before you start bleaching your blue hair, the first thing you need to do is to fade the color. 

Do you want to know how to get to an amazing blonde with healthy, strong hair?


Then, continue reading, because I’ll tell you:

  • Step 1: How to fade blue dye before bleaching
  • Step 2: How to evaluate the condition of your hair before bleaching
  • Step 3: How to prepare your hair for bleaching
  • Step 4: Steps to go from blue to blonde hair


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Step 1: How to fade blue dye before bleaching hair to blonde

In this race to go from blue to blonde hair, it is very important to safely take the first few steps. What do those first steps involve?

They involve removing blue pigments before bleaching.


To fade the blue pigments, you can use a clarifying shampoo or wash your hair more often with anti-dandruff shampoo.

What’s the difference?


With the clarifying shampoo, you will be able to fade the blue pigments more quickly. In turn, with the anti-dandruff shampoo, it will take a few more washes.


  • Clarifying Shampoo

remove toner from hair

 The clarifying shampoo is ammonia and peroxide free and works by removing artificial color from hair.

My recommendation is that you don’t use it while showering, as you should leave it on for about 10 to 15 minutes.


 All you have to do is wet your hair, apply a considerable amount of shampoo, and make a lot of foam. Then, leave it on for 10 or 15 minutes. 

Finally, rinse your hair, dry it and check it

  • If your blue color is very light and you can see blonde sections, you can immediately apply the bleach.
  • If your hair is still blue but lighter, you can reapply the shampoo as often as necessary.


  • Anti-dandruff shampoo

with nasturtium

The anti-dandruff shampoo has many sulfates, which are detergents in charge of removing dirt, grease, and impurities from the hair.

That's why, in addition to cleaning the hair and fighting dandruff, it removes color. So, you can eliminate blue pigments in five or six washes.


 To use it, apply the anti-dandruff shampoo and leave it on for about five minutes. Repeat the process every day for a week.  

Once the blue has faded, you can perform the bleaching. However, firstly, it is important to evaluate the health of your hair.


Step 2: How to evaluate the health of your hair before bleaching

hand showing hair

I know you want to look blonde and leave the blue behind, but patience is the mother of science so that your hair doesn't end up absolutely burnt from bleaching.

The only way to avoid this is to check if your hair can resist this rather aggressive chemical process.


The first step will be observation

It is crucial that you carefully take a look at your hair.

  • Do you have split ends?
  • Do you leave short hairs on your pillow or clothes?
  • Do you have frizz?
 Any of these symptoms indicate that your hair is dry, and you should urgently moisturize it. 

Apply coconut oil in lengths and ends and leave it on all night. The following day, rinse and apply conditioner.


The next step is to touch your hair.

  • Is it rough?

In this case, you must hydrate it with keratin masks 2 or 3 times a week before proceeding with the bleaching.


Finally, do the strand test. It consists in separating a small portion of the hair and applying the bleaching mixture

  • If, after rinsing, your strand does not show any change, you can bleach your hair because the hair fiber will support the process.
  • If, after removing the bleach mixture, your hair is like gum, you can’t untangle it, or it splits,  YOU MUST NOT BLEACH YOUR HAIR AS THE HAIR FIBER WILL NOT STAND THE CHEMICAL PROCESS.  


Even if your hair is strong enough to withstand bleaching, some precautions can still be taken.

Do you want to know which ones? Continue reading; we're almost there.


Step 3: Preparing your hair for bleaching

extra virgin

To further minimize bleaching damage, here are some pieces of advice:

  • 4 hours before bleaching, apply coconut oil, and do not rinse. Then, you can apply the bleaching mixture.
  • 3 days before bleaching, apply a keratin moisturizing mask to moisturize your hair and restructure your hair fiber deeply.
  • Do not wash your hair 48 hours before the process. The scalp’s natural oils have a great power to protect the hair from the roots to the ends.


And now, the long-awaited moment: bleach your hair to finally go from blue to blonde.


Step 4: From blue to blonde hair, step by step

30 volume developer and shampoo


  • Blue bleaching powder
  • 30 volume peroxide
  • Coconut oil
  • Gloves
  • Hair clips
  • Dye brush
  • Plastic container



  • Comb and separate your hair into four sections, drawing a line from the front to the back of your head, and, then, another line from ear to ear. Secure each section with hair clips.
  • Put the gloves on and, in a plastic container, mix the blue bleaching powder and the 30 volume peroxide, adding 10 or 15 drops of coconut oil to hydrate your hair during the process. Mix well until you get a homogeneous and creamy consistency.
  • Start applying the mixture from the back of your head, removing a clip from one of the 2 back sections. You can help yourself with a hair color brush.
  • Apply from root to ends, leaving 2 or 3 centimeters of growth.
  • Repeat this action on each section, and at the end, wrap your hair in a shower cap to maintain the heat.
  • Leave the bleach mixture to work for 10-20 minutes, checking how the bleach is progressing every 5 minutes.
  • Never leave the bleach mixture on for more than 20 minutes. Then, rinse your hair with plenty of warm water. If you wish, you can use shampoo.


Dry your hair and watch it.

Did it go blonde?


Jump with joy and apply the color you want or enjoy the new color you got.

Do you have any bluish residue? Don't try to bleach it again! You'll need to wait at least 15 days to do the process. In the meantime, nourish your hair deeply.



  • To go from blue to blonde hair, it is very important to remove the blue pigments, using a clarifying or antidandruff shampoo.
  • Once you remove the pigments, you will need to assess your hair’s health and moisturize it deeply before bleaching it.
  • Always keep a close eye on color changes during bleaching to avoid excessive and irreparable damage to your hair.

Ready to leave the blue color and embrace the blonde again?

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