How can you cover gray hair after a keratin treatment? Just dye your roots…

long straight hair girl hesitates

  • To cover gray hair after a keratin treatment, only apply dye to your roots. Wait at least 2 weeks to do it.
  • If you do it too soon, the dye may affect the keratin treatment and your hair may not look the way you want it to.
  • If you do both treatments on the same day, the color may not look that great or the keratin may not last as long.
  • Your hair may even go frizzy.


If you want to discover a trick to cover your gray hair and do a keratin treatment on the same day, click here

YOU MAY ALSO LIKE: Does coloring your hair cause more gray hair?


Are you wondering how to cover gray hair after getting a keratin treatment?


Well, that’s good. This is a question that not many people ask, but I can see you’re curious. And you know what?


You have my approval, because you’re one of those who think before you act, and that’s a good thing.

 Most people think that doing a keratin treatment and covering gray hair can be done in the same moment,  without any problems and without any consequences.


But the reality is that  both products can affect each other  if you do them on the same day.

As I said at the beginning, if you do a keratin treatment and hair color on the same day, your hair may not look great.


This happens because  the keratin forms a protective layer on your hair. It doesn’t allow the color to penetrate fully. 

At the same time,  when you apply the dye, it won’t let the keratin do its job  of smoothing and leaving your hair nice and healthy.


Keratin first, or dye to cover gray hair? Dye it first

back of a woman's hair that is being dyed at the hairdresser

My advice is that  after the keratin treatment, you wait at least 1 or 2 weeks to dye your hair  and cover up that gray.

I know that’s probably not the answer you were looking for. Who wants to wait when they don’t feel good about their hair?


But this is one instance where the phrase “it’s worth the wait” is perfect, because  if you have a bit of patience you’ll be able to show off straight, healthy, shiny, and perfectly colored hair after the wait. 


YOU MAY ALSO LIKE TO READ: Best hair color to hide gray roots (according to a professional colorist)


How should I color my gray hair after a keratin treatment?


Here’s a tip to cover gray hair and do a keratin treatment the same day

Lady applies dye on a girl's hair

 There is a solution so you can do the keratin and the color at the same time. 

It’s simply a matter of planning ahead, and I know you’ll be able to do it.  You’re one of those who think before you act. 

The solution is to  dye first and then do the keratin treatment . However, a small difference is that  the color you choose must be a shade darker  than the one you usually apply. For example:

  • If you use a 6, this time apply a 5.
  • If you normally use an 8, apply a 7.

Then, when you do the keratin treatment, the shade will lighten and the color you always do will be left. Remember:  dye only your roots to cover gray hair  and not all of your hair.


Of course, in this case,  it’s best to go to your trusted hairdresser  so you don’t come out of all this with your hair in a mess.


Here’s a 100% true story

smiling girl with hair straightener in hand for keratin treatment

As I was telling you, keratin lightens the color a bit. So if you color your hair before the keratin treatment,  it’s likely gray hair will come out again, but this time very soon afterward. 

This whole thing reminds me of my client Susi. She came to my salon, as she always did every 20 days, to cover up her gray hair, with an ash blonde that looked splendid on her.


That day when I was washing her hair, with her gray roots already dyed, she asked me to give her a keratin treatment this time.

Of course, I explained to her that I didn’t recommend it. It was probably the treatment would lighten the color. But  she was so desperate with her frizz that she decided to run the risk. 


Of course, the result was to be expected.  The next time she washed her hair, she started to see some gray showing through already. 



To cover gray hair after a keratin treatment,  you must be careful and plan when to do it  so you can take advantage of both treatments, without one getting in the way of the other.

Even if you have to wait a bit this time, it will be worth the wait.

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