Can I use 20 volume developer with demi permanent color?

I would not recommend mixing a demi-permanent dye with a 20 volume developer.

In general, you should use at most a 10 volume developer and I’ll tell you why that is here.

The point of using demi-permanent dye is to lessen the damage another kind of dye could do to your hair, like permanent dye.

If you mix a 20 volume developer with demi-permanent dye, and the color oxidizes, you’ll need to bleach your hair several times to get rid of it.

Bleaching your hair is an aggressive chemical process that would be counter-effective if what you’re trying to do is avoid damaging your hair fiber.

Now you know that it’s not a good idea to mix demi-permanent dye with a 20 volume developer.

Do you want to learn more about these kinds of dyes?

Stick with me because I’ll tell you a few secrets about these kinds of dyes that I promise you won’t find anywhere else.

How do demi-permanent dyes work?

Like I told you at the beginning of this article, demi-permanent dye doesn’t contain ammonia.

Ammonia is the chemical that sets the color when it penetrates your hair fiber.

Of course, ammonia doesn’t do that all by itself, it needs hydrogen peroxide to make the chemical reaction.

Peroxide is in charge of opening your hair cuticles so the dye color can set inside your hair fiber.

Now, how does demi-permanent dye work then?

Since it doesn’t have ammonia, the dye pigment can’t penetrate your hair fiber.

And by using only a 10 volume developer, the chemical reaction that opens the cuticles doesn’t happen.

That is why demi-permanent dye lasts so little time in your hair. It’s not inside your hair, but rather sitting on the surface of it.

The color will fade each time you wash your hair, and after about two weeks, you’ll need to renew your color.

Now that you know how demi-permanent dye works, let’s look at why it’s not a good idea to mix it with a 20 volume developer.

Why isn’t it a good idea to mix it with a 20 volume developer?

20 volume developer has the capacity to open your hair cuticles, but the dye doesn’t have the ammonia necessary to complete the reaction.

So, the peroxide will open your hair cuticles, causing your hair color to change, since your hair fiber will start to expel color.

But, the dye pigment won’t be able to set, which is what causes color oxidization.

Oxidization is the process by which peroxide degrades your hair fiber and changes the dye color, creating reddish, blue, or yellow tones as a result.

Like I said before, the goal of using a demi-permanent dye is to avoid damaging your hair.

How to correctly use a demi-permanent hair dye without hurting your hair

You use demi-permanent dye just like you would any other kind of dye.

But, it does have a few things about it that make it easier to apply:

If your hair is very dark, you can’t use a very light color, since you’d need to bleach your hair beforehand for it to work.

You can get a kit of demi-permanent dye or a tube of it separately in a pharmacy or a hair care store.

If you get the kit, you’ll have everything you need inside the box.

If you opt for the tube alone, you’ll need to buy:

Once you have everything you need, you can get started.

Step 1: Preparing your hair

• Brush through your hair carefully, ensuring you have no knots left in it
• Part your hair down to middle to make it easier to apply the mixture