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
To make your hair go a different colour and cover up he grey hairs :D
Hair dye can be messy and stain things other than your hair. Some people are allergic to it.
Yes, some cheaper hair dyes do.
because they have different colour hair
I use nice an easy, the colour takes well compared to other box dyes.
because it make hair dry
With the use of dyes
Wat.
No, there is not data supporting thyroxine to affect hair dyes. Thyroxine is a thyroid hormone produced by the thyroid gland.
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.
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.
No. Originally, his hair color was brown - he dyes his hair.