Dying Hair on Top of Dyed Hair: What to Do Guide

Introduction to the topic

There is nothing wrong with thinking about what your life might look like if you had red or blonde hair, but don’t go overboard. It’s important to know a few things about hair dye before you go out and buy it.

For example, the colour depicted on the box may differ from the actual colour you receive. You may be shocked to learn what some of these goods include in terms of components.

As a rule of thumb, hair dyes will not lighten hair that has been previously dyed. Why? Because it’s not meant to be used in that way! Hair dye is not designed to lighten or eliminate colour from your hair. It’s like this: After colouring your hair, the molecule that makes up your hair is loaded to capacity with colour. The molecule must shrink over time before a new colour may be “filled back up” to restore your original colour. To lighten your hair, there is an additional level of difficulty to consider and grasp.

Is it possible to re-dye your hair after it has already been dyed?

My opinion is that it all depends on the colour of your hair, how often you’ve dyed it, and what colour you’d like to go for in the future.

If you have naturally dark brown hair, the first time you get it coloured is usually a vivid red colour.

My hair looked great for about six months, but then I got bored and went back to brown, waited a bit longer, and bleached the ends. Now I (semi-permanently) dye the ends of my hair whatever colour I like.

To get your hair back to its original colour, you can buy a colour reverser from a store like Boots or Superdrug (in the UK). However, I recommend waiting a few days before doing this because it can damage your hair.

If you’ve previously coloured your hair a darker shade of violet, crimson, indigo, or an extreme shade of copper, you should use a colour remover (ideally one that doesn’t contain bleach) to remove as much of the existing colour as possible before going in for another colour treatment. You should use a 10 vol peroxide developer if you want to get substantially darker or if your hair is color-resistant. Choose a 5 vol developer if you want to tone your hair or if you have fine hair and want to make it cooler or warmer.

In order to lighten your hair, you must wait for the hair molecules to decrease, but you may also need to “strip” away your hair undertone depending on how light you want to go. Defintion of an undertone? Two layers make up the basic structure of each hair follicle. To begin, your hair’s base colour is what you see when you look in a mirror.

The third layer is the colour of your hair, such as black, brown, or blonde, for instance. Your “overall colour” is the sum of the two layers. When it comes to success, your undertone might make all the difference. Going lighter almost always necessitates first brightening your undertone and then adding your target shade (i.e. hair colour) on top!

What would happen if you coloured your hair over already dyed hair?

Coloring black hair is not an easy task at all. To get rid of the colour, you’ll either have to grow your hair out again or use a colour remover, salon specialists say. As both of these assertions are true, it can be very difficult to get the desired effect when trying to lighten black hair. Imagine trying to colour over a black crayon with a white crayon. I don’t think it goes fully white, do I? Exactly! Hair colours are essentially the same.

A prior colour can’t be painted over without causing complications. However, going from a lighter to a darker shade of a hue is significantly simpler. It’s possible to shift from a light brown shade of hair to a darker shade of the same colour. Actually, it wouldn’t be a big deal if that were the case. The colour may take a little longer to develop, but it will eventually darken.

Hair colour remover is also recommended if you want to lighten your hair colour. In a sense, it’s like wiping away your blunders and beginning again with a fresh slate. It may be a pain, but it’s worth it.

Using one colour over another to darken your hair does not pose any difficulties. The amount of colour you use will determine how black you want your hair to get.

As an alternative, you can simply use one colour over another to lighten your hair up to two shades lighter than your present hue.

Suppose you have level 5 medium brown hair and wish to go from level 7 dark blonde. As a matter of fact, it is possible because it would only be two levels lighter.

However, bleaching your hair is required if you wish to utilise a blonde 8.

There are three easy principles to follow when it comes to hair colour:

• If you want to lighten your hair more than two levels, you’ll need to use bleach.
• To darken your hair, you don’t need to use bleach.
• Adding colour to your hair doesn’t make it lighter.

You can achieve the hair colour you want if you follow these three criteria.

When dyeing previously coloured hair, what kind of hair colors should be used?

Following the two-level rule, you can lighten your hair without having to use bleach, as I explained at the beginning.

What does that imply?

Two levels of difference should be all that separate your present colour from the colour you desire.

In other words, lightening your hair beyond that point will cause your hair to change colour groups. As an illustration, consider the following:

• You can use a medium brown 5 if your hair is dark brown 3.
• If you have medium brown 5 hair, a dark blonde 7 would look great on you.
• You can use a light blonde 9 if your hair is dark blonde 7.
• You get the picture? They are always in the same colour range.

Assuming your current colour is at least two levels away from the colour you want to utilise, what would happen?

In this example, let’s assume you want to apply a blonde 8 on your dark brown 2.

Because the peroxide in the colour will cause your dark brown hair to fade, there are five levels of difference in this scenario. After that, you’ll be left with a distasteful shade of reddish-orange.

It should be obvious by now that bleaching your hair is necessary if you wish to utilise a lighter colour than two tiers lighter.

It’s a different storey if you want to darken your hair.

You don’t have to go through any additional processes in order to darken your hair in this situation.

You can go as dark as you like with your hair, but I caution you against going darker than two shades at a time.

In other words, lightening your hair beyond that point will cause your hair to change colour groups. As an illustration, consider the following:

Because the peroxide in the colour will cause your dark brown hair to fade, there are five levels of difference in this scenario. After that, you’ll be left with a distasteful shade of reddish-orange.

It should be obvious by now that bleaching your hair is necessary if you wish to utilise a lighter colour than two tiers lighter.

You don’t have to go through any additional processes in order to darken your hair in this situation.

How to re-dye your hair?

Step 1: Taking care of your hair when dyeing it again

Apply a new colour at least two weeks after the previous one has faded. Damage and breakage might result if you recolor your hair too soon after the first time. Because you’re dyeing over a previous dye job, you won’t be able to predict how the colour will turn out.

Step 2: You’ll get a better effect with a darker shade

A darker hue will blend better into previously coloured hair because it is easier to darken than to lighten. As a bonus, it’s less damaging to your hair than bleaching it. Since you’re already in the second phase, you need to be careful not to inflict further damage.

Step 3: If your hair is significantly damaged, do not re-dye it

Overprocessing can make hair more dry, brittle, or prone to breakage. Even if you’re desperate for a new style, dyeing damaged hair will only make it look worse.

Step 3: Remove undesired colour by using a color-stripping agent

Re-dying your hair may require the removal of the old colour if you’re making an extreme change. You can use these products to get rid of the dye that is already on your hair so that the new colour can penetrate it.

What’s the best way to lighten hair that’s already been dyed a different colour?

One of two things you may do to lighten previously coloured hair is to use a hair lightener. Ammonia, peroxide, bleach, or other chemicals that strip hair of its colour can be used as a powerful lifter, which is the most common method. You can then colour your hair as desired after you have elevated it.

Option one has a benefit? You can lighten and tone your hair in less than an hour, depending on how much you want to do. The drawback? Lifters with high hair lightening power can cause damage and thinning, therefore we recommend that you get them done at a salon rather than at home.

Low-peroxide lighteners are safe to use for highlights at home, but are not recommended for achieving and keeping an overall lighter tint of hair.

Watch Hairdressers guide to coloring your own hair and not ruining it | Video

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Conclusion

Most women lighten or darken their hair at least once in their lifetimes.

Simply pick your favourite shade and apply it to your hair.

However, you must exercise extreme caution so that you do not make any errors that you may later regret. Because re-dying your dyed hair is not recommended at all.

By reading this guide, I hope you got the full idea of Dying Hair on Top of Dyed Hair: What to Do Guide.

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