Does L’Oréal HiColor work on already dyed hair?

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applying dye to already colored hair

  • L’Oréal HiColor is specially designed for hair that was previously dyed dark. It’s applied with a 30 or 40-volume peroxide. Therefore, it removes the pigments of the previous hair dye.
  • You can use it on hair treated with permanent, semi-permanent, or ammonia-free hair dye.
  • However, you cannot use it if you previously colored it with henna. In this case, you’ll have to wait at least one year to apply HiColor.
  • Today, I’ll tell you about the best shades of HiColor according to the color you used previously.

 

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All permanent hair dyes can be applied over the other hair dyes because the developer removes the first hair dye.

However, you should be aware of some additional issues with HiColor.

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Otherwise, you could ruin your hair.

For example, what hair dye did you use to color your hair? Did you use henna?

 

I have some bad news.

 In that case, you cannot use HiColor. 

Although henna is a chemical-free, plant-based, natural hair dye, it contains a metallic ingredient.

If you apply HiColor over it, your hair will fall out in clumps.

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So, if you’ve used henna, you should wait 9-12 months before considering a permanent hair color like HiColor.

Having said that, what color did you use before?

 

 HiColor works perfectly well on hair colored with permanent, semi-permanent, or ammonia-free hair dye. 

Will HiColor work on your black-colored hair?

 

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Yes. HiColor is applied with a 30 or 40-volume developer. It’s powerful enough to remove the previous hair dye.

And that’s great news for dark color-treated hair because you won’t need to bleach your hair.

 

Now that you know that L’Oréal HiColor can be applied to your color-treated hair, you should choose the best shade.

And that’s what I’ll talk about next.

 

Which HiColor shade to apply on color-treated hair

dyeing over dark or already colored hair

If you’ve applied dark or very dark colors to your hair, you don’t need to worry. HiColor is designed especially for these types of shades. It has a wide palette of colors so you can change your look.

 

However,  if you want to achieve an even color with full coverage, it’s best to choose wisely. 

 

If your hair is black 1 or dark brown 3, you can apply:

  • H2 Cool Light Brown
  • H11 Intense Red
  • H23 Black Plum

 

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If your hair is brown 4, you can apply:

  • H8 Red Fire
  • H14 Vanilla Champagne

 

If your hair is light brown 5 or dark blonde 6, you can apply:

  • H9 Red Hot
  • H16 Honey Blond
  • Magenta (HiColor Highlights)
  • Red (HiColor Highlights)
  • Ash Blond (HiColor Highlights)

 

Why do I suggest these colors?

Because HiColor will allow you to lighten your previously colored hair up to three or four shades.

Therefore,  you should check your previous color to ensure perfect coverage with HiColor. 

 

How to apply L’Oréal HiColor on color-treated hair

before bleaching

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HiColor is not sold as a kit. So, you’ll need to get a developer according to your new shade.

  • Darker shades are applied with a 30-volume developer.
  • Lighter shades are applied with a 40-volume developer.

 

Once you gather all the elements, you can start the application. Here’s a list of materials you’ll need.

  • HiColor hair dye
  • A 30 or 40-volume developer
  • Hair dye brush
  • Plastic container
  • Hair clips
  • Gloves

 

Step by step

Step 1: Hair preparation

I recommend that you don’t wash your hair for 48 hours before applying the hair dye. That way, the natural oil produced by the scalp will protect your hair.

Comb your hair and divide it into four sections, two in the front and two in the back, holding each section with hair clips.

 

Step 2: Mix preparation

In a plastic container, mix the hair dye and the 30 or 40-volume developer.

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Mix to blend.

 

Step 3: Mix application

With gloves on, release one of the four sections of hair you separated and start applying from roots to ends.

You can do this with the hair color brush to cover all the hair to get an even color.

Then, cover your hair with a shower cap or nylon bag to keep the mixture warm.

Leave it on for 40 to 50 minutes and check your color every 5 minutes.

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Step 4: Rinse and dry

Finally, rinse your hair with plenty of warm water. You can use shampoo and conditioner and leave them in for 3 to 5 minutes to help your hair recover moisture.

You can dry your hair with a blow dryer or simply apply a few drops of anti-frizz or coconut oil. Let it air dry.

 

Conclusions

HiColor is an ideal coloring line for dark and previously colored hair that helps you get the shade you want without going through several bleaching sessions.

You can choose from a wide variety of reds, blondes, purples, and oranges. You should take into account the color you previously used to ensure an even and stain-free color.

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