How often can you dye your hair without damaging it?

every three or four weeks

It’s ideal to dye your hair every four weeks, but:

  • If your hair grows quickly or if you have a lot of gray hairs, you can touch up your new growth more regularly, that is, every 3 weeks.
  • If you have a dark tone, you could space out your coloring to between 5 and 6 weeks. But, on the other hand, if your tone is really light, you should redye your hair every three weeks.
  • And lastly, you should never ignore the importance of developer. If you apply dye with 20 volume developer, the damage to your hair will be minimal, but if you use 30 volume developer, the harm will be greater.


As you can see, it’s ideal to redye your hair once every 4 weeks, using a 20 volume developer.

But of course, there are ideals for everything, except for the issue of dying frequency.

There’s an ideal boy, an ideal restaurant, an ideal trip, even an ideal mother-in-law. Yes, even if you don’t believe it, the ideal mother-in-law also exists, and the proof of it is my mother-in-law.

But as for the frequency of dying, everything depends on the conditions I mentioned before.


For example, Lenise is a kind, 60-something woman, who each time she comes to the salon, it’s as if spring has arrived, pure joy and color.

However, she never misses the chance to scold me because I don’t want to dye her hair before three weeks have passed by. And she complains because she starts to notice her gray hairs before the time is up.

The problem with Lenise is that she dyes her hair a really light blonde, and for that, I need to use 30 volume developer.

Can you imagine the damage to her hair if I were to dye it just as soon as the first gray hairs start to appear?


She would be bald in less than a month.

Well, bald no, but her hair would be horribly damaged.

 So, for redying hair, it’s necessary to go on a case-by-case basis. 


So it’s completely clear, today, I’ll tell you:

  • How often you should dye your hair depending on your growth
  • When to redye according to the tone you have
  • Which volume of developer to use when renewing your color


After today, you’ll have zero doubts, and you’ll be able to redye your hair at the intervals suitable for avoiding damage.


Tabla de Contenidos


How often to apply dye depending on your hair growth

gray hairs

Do you know how much your hair grows per month?


  • In general, hair grows a centimeter a month approximately. Of course, there will be women like Rapunzel who have a little more growth, but that is the average, proven scientifically.

Why is that centimeter so important?


  • Because if your hair grows a centimeter each month, you’ll start to notice your roots, and that’ll be the moment you want to renew your color.

And you’ll be able to choose between applying dying in all your hair or just touching up the roots.

 If you have a lot of gray hairs, you should renew your color completely, given that the gray hair, being hair without melanin, won’t absorb the pigment and that is why you notice them so fast. 


  • I recommend that to combat the damage done by dye, you apply hydrating masks after the first 48 hours following the application.

You can use the masks once per week—they hydrate your hair and get it ready for the next coloring session.


Coconut oil and argan produce a deep hydration and nourish your hair after applying dye, regenerating the damaged cuticles of your hair fiber.

If you keep up this beauty routine, the dye won’t damage your hair when you apply it each month.


Now, what does this have to do with the frequency of hair dying? Much more than you can possibly imagine, and that’s what I’ll tell you about next.


When to redye your hair keeping in mind the color tone

two hairdressers and their client

Surely, you’ll be asking yourself why your hair tone might affect the frequency of recoloring. The answer is simple.

If you have a really light tone, you should redye it frequently, once every three weeks.

Lighter tones, like light blonde 8 and above, as with my client Lenice, use 30 volume developer.

In addition, extra light tones, like 11 or 12 in any brand, even use 40 volume developer.

Can you imagine the damage that 40 volume developer could do to your hair if you apply it every two weeks, each time a gray hair appears or you have new hair growth?


  •  For all of my clients who put in really light tones, I have only one recommendation: nourishment, nourishment and nourishment. 

Because it’s the only way to recover your hair fiber in time for the next coloring session.

If you dye your hair with a light tone, I recommend that you leave time between completely redoing your color and that you only touch up the new growth, given that in this way your hair will suffer less damage.


  • Now, if you dye your hair a darker shade, the outlook is more uplifting because in this case you can redye your hair every six weeks.

This is due to the fact that darker tones have more pigmentation than lighter ones, and therefore, your hair absorbs a lot more color. Therefore, the dark tones last much longer in your hair than the light ones.

So you should only touch up your new growth, if the shade of dye is very different from your natural color.


  • I have a client in the salon that uses a chocolate 5.5 shade and her natural tone is a dark brown 3.

For this reason, she comes in to touch up her roots every 5 to 6 weeks, given that the difference in her color is almost imperceptible. In her case, we completely redo her color every two to three months. In this way, you avoid the dye’s unnecessary chemical damage.

What’s more, you should apply dark tones with 20 volume developer, which isn’t excessively damaging for your hair, and by spacing out the application in long intervals, your hair will recover perfectly.


  • Lastly, when you choose a shade for dying your hair, think beyond just the color.

Because each tone implies a different amount of maintenance, and also because  the lighter the tone, the more damage for your hair if you don’t keep up with your post-dye hair care regimen. 


You’ll be asking yourself, why does developer affect recoloring your hair? Because it can be what makes the difference between damaged or healthy hair.


Which volume developer to use when re coloring your hair so you don’t damage it

  • My answer will be, again and again, 20 volumes. Etch it in your skin, like the tattoo you have that you love so much.

Each time that I’ve come across totally destroyed hair it was because the person used developer at a higher volume without thinking for a moment about the consequences. They also didn’t really know exactly what role developer was playing.


  • Developer is the chemical that produces the most damage in your hair,  so if you want to apply dye regularly without getting extra damage, you should use 20 volume developer. 

All dyes are applied with 20 volume developer with the exception of light blonde 8, 9 and 10 that use 30 volume and the extra lightening ones, like 11 and 12, which are mixed with 40 volume developer.

I repeat, “all other dyes use 20 volume developer”.


  • If you have all your hair the same color, you don’t need to apply higher volume developer to renew your color or the growth. Because if you were to apply higher volume peroxide to the growth at your roots, it will turn out, at the most, two tones lighter than the rest of your hair.

And if you put in a higher volume developer, you run the risk that the pigment will change and become a different tone than the one you had before.


  • Always use the tube of developer that comes included in the color kit, given that it’s the right amount of volumes that you need, and you won’t be at any risk.



Each hair color renewal is just as unique as the person who is using the dye. There isn’t a fixed law about the frequency of coloring.

There are only these general rules for redoing your color so that you don’t damage your hair unnecessarily.


And now ‘fess up—how often do you recolor your hair?

Deja Tu Comentario