Can you dye wet hair BLACK? I don’t recommend it

woman think wrapped in bathrobe

  • Black hair dye should never be applied to wet hair.
  • Because otherwise the color won’t penetrate the inner layer of the hair and won’t set.
  • And if the color doesn’t set, the result will be dull, faded black hair.
  • Below I’ll tell you the best way to dye your hair black.


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I think a lot of people think it’s a good idea to dye wet hair black. They think if they wet their hair the dye will distribute better.

But reality tells us otherwise.

Because  if you apply black dye on wet hair many things could happen, and the truth is that none of them are good. 


First, if you apply black dye to wet hair, from the moment you start applying it the dye will start to drip.

Yes, just try to imagine for a moment. Little black rivers running down your face from the roots to your cheeks.


And then, when you rinse the dye out, it won’t get any better. Because your hair color will be faded and dull.

Then you’ll look in the mirror and ask yourself: “Where’s the jet black hair the smiling model on the coloring kit promised me?

So I want to spare you the disappointment. Read on and you’ll find out why it’s not a good idea to apply black dye to wet hair.


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Why you should apply black dye to dry hair

colorsilk black hair dye
Basically, it’s  for the coloring process to be completed successfully. 


If you apply black dye to your dry hair, the color will penetrate the inner layer of the hair better

When your hair is wet, it retains water molecules. That is, your hair slowly absorbs moisture and as the hair dries, the excess water evaporates.


The dye has a semi-liquid consistency.

Therefore, if you apply the black dye, your wet hair won’t be able to absorb the dye properly. Don’t forget that the water molecules are there, taking up space.


If you apply black dye to wet hair, the color will fade more easily

Do you think water is an ally of the dye mixture?


No, of course it’s not. The dye gets “diluted” and loses intensity.

I always make my clients think about coffee as an example. If you want an intense, aromatic, full-bodied coffee, you can’t overdo it with the amount of water. Otherwise, you’ll end up with a diluted or very weak coffee.

The same applies to black dye.  If you apply it on wet hair, the color will be diluted or faded. 


That brings us to the following reasoning.

If you apply black dye to wet hair, the color will lose intensity. In other words, once your hair dries, it will look as if you dyed it two months ago.

And this will be thanks to the water in your wet hair diluting the color. Therefore, you’ll only have to dye your hair again.

But you should wait fifteen days, so as not to damage your hair. Remember that coloring is a chemical process that robs your hair of moisture and nutrients.


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How to apply black hair dye on dry hair

apply black hair dye on dry hair
I’ll give you some tips on how to achieve perfect black hair after applying dye to your dry hair.

  • Don’t wash your hair for two days before coloring. This way your scalp will secrete sebum that will protect both your hair and your scalp.
  • And during those 48 hours, don’t use any oils, serums, or repairers before dyeing.
  • Correctly calculate the number of hair dye boxes you need to color your hair according to how long your hair is.
  • Respect the exposure time. If the hair dye manufacturer says you should leave it on for 45 minutes, don’t leave it on longer or rinse it out before that time.


Applying black hair dye to dry hair

  • Comb your hair and separate it into four sections, from your forehead to the nape of your neck and from ear to ear, holding each section with hair clips.
  • Put on gloves and mix the developer with the dye that’s in the coloring kit, until you get a smooth mixture without lumps.
  • Start applying the black dye to one of the sections. I recommend starting with one of the back sections.
  • Apply the mixture from the roots to the ends and repeat on each section of your hair.
  • When you finish applying the dye to all of your hair, cover it with a shower cap to keep the temperature steady. Control the exposure time.
  • Once the exposure time is up, rinse your hair by running water through it until it’s crystal clear.
  • Drain your hair, apply the post-color treatment in the kit to close the cuticles, leaving it on for three to five minutes.
  • Rinse your hair and let it dry naturally.



You should always apply black hair dye to dry hair. Because this way, you’ll achieve an intense and long-lasting color.

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