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well they have different chemicals in the dyes so it would make the colour in so im sure you've evither done it in science or your going to do it in science

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14y ago

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Why do you use hair dyes?

To make your hair go a different colour and cover up he grey hairs :D


What are the effects of hair dyes?

Hair dye can be messy and stain things other than your hair. Some people are allergic to it.


The Naturtint Permanent Hair Color claims to have no ammonia. Do the other ones have ammonia in them?

Yes, some cheaper hair dyes do.


What makes humans look so different from each other?

because they have different colour hair


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Wat.


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Can you sleep at night with unwashed hair dye?

It really depends on the dye. Some dyes, like Manic Panic, are a vegetable based stain. As long as you cover your hair, you should be fine. Other hair dyes will fry your hair if they are left in longer than the suggested time. You will have to read the directions specific to your dye.


Why do instructions on henna hair dye warn against using it if you dye your hair with chemical dyes can it be harmful or just produce a funny colour?

Henna dyes and metallic dyes are bad both ways. They can interact with other chemicals to create colors with an odd greenish/orange cast and/or damage to the point of needing to be cut off. I do not recommend henna dyes, do some internet research...you'll probably find some of what I'm talking about. -------------- Metallic dyes and henna dyes (which usually contain metallic dyes) cannot be removed from the hair. Once you have used a metallic dye, no other chemicals can be used on the hair. The only way to remove the color is to cut off the treated hair. Using other chemicals on hair treated with metallic dyes can cause negative chemical reactions that may include irreversable damage and breakage, uncorrectable unusual color changes, and even chemical burns. One of the tell-tale signs hair has been treated with a metallic dye is when any ammonia-based hair color product or bleach is applied, the hair begins to emit a strong foul odor and smoke may be seen rising from the hair. If this occurs, rinse immediately to prevent chemical burns on the scalp and minimize damage to the hair.


Is Eminem blond?

No. Originally, his hair color was brown - he dyes his hair.