Should I use a leave-in conditioner before bleaching?

leave-in conditioner before bleaching

  • It’ll always be a good idea to use a leave-in conditioner the night before bleaching your hair. Remember to choose the appropriate consistency according to your hair type.
  • If your hair is straight, go for a lightweight leave-in conditioner.
  • If your hair is wavy, you can opt for a creamy or liquid leave-in conditioner. And if it is curly, the leave-in conditioner should be creamy.
  • This way, you’ll get extra protection from the leave-in conditioner before you bleach your hair.


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When it comes to bleaching your hair on your own, all hair care during the process is more than welcome.

A few days ago one, of my clients called me in desperation. She wanted to bleach her hair but didn’t have time to come to the salon. She wanted some tips on how to protect her hair during the process.


My first advice was to apply coconut oil the night before bleaching.

She didn’t have time to get coconut oil by then. So, I asked her if she had a leave-in conditioner to style her hair.

I knew she wondered why I was asking her that.


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However, I hadn’t gone crazy.

 Leave-in conditioner can provide a protective barrier against the aggression of the bleach. 

My instructions were very clear. Do you want to know what I told her?

Read on.

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How to use a leave-in conditioner before bleaching

detangling her hair with a comb

A leave-in conditioner should be applied the night before bleaching your hair.

 If you use it only some minutes before bleaching, it may interfere with the process resulting and prevent your hair from bleaching evenly. 

Why is a leave-in conditioner an excellent tool to protect hair before bleaching?


Because harsh chemicals dry out the hair during bleaching. As a result, bleached hair is coarse, dull, and even burned.


The developer and bleach powder are damaging chemicals that penetrate deep into the hair to remove the color from the core.

Although the bleach is creamy, the bleach powder dehydrates your hair.

When it heats during the process, it evaporates the water trapped in your hair.

Did you know that hair is made up of water?


Yes! 70% of its composition is pure water.

That’s why bleaching is so aggressive to the hair. It removes a large amount of water from the hair by dehydrating it.

So,  that’s where the magic of leave-in conditioner comes in. 


A leave-in conditioner nourishes the hair with protein and a variety of nutrients to help it retain water within the core.

As it’s smooth and creamy but not greasy, it helps your hair regain its shine and body.


If you apply the leave-in conditioner the night before bleaching, your hair will have an extra dose of moisture.

Therefore, it’s an excellent idea to use a leave-in conditioner before and after bleaching to nourish your hair.


How to prepare your hair for bleaching with a leave-in conditioner?

accumulates product build up

Now that you know that a leave-in conditioner is a great choice before bleaching, you should choose the one that best suits your hair type.

  • If your hair is straight, you should choose a lightweight conditioner (spray).
  • If your hair is wavy, you can choose a liquid or creamy conditioner.
  • If your hair is curly, you should choose a creamy conditioner.


This way, a leave-in conditioner will be especially beneficial to add moisture before bleaching.

For example, if your hair is straight and you apply a creamy leave-in conditioner, it may feel heavy. That's why a liquid leave-in conditioner works best in that case.


 Also, remember when to apply the leave-in conditioner before bleaching your hair. 

First, remember to stop washing your hair at least 48 hours before bleaching.


I advise that you wash your hair and apply conditioner 48 hours before bleaching to protect your hair in advance.

Your hair will feel softer after bleaching by using the leave-in conditioner correctly.



A leave-in conditioner is a great ally against hair dryness during bleaching.

After rinsing out the bleach, I also recommend reapplying the leave-in conditioner to start the repair process of your hair.

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