hair color doesn't effect it. It all has to do with genes, health of your hair, and diet.
They all grow at the same rate.
The more often you cut your hair, the quicker it grows back. Therefore, since we cut the hair on our head so often, it grows the fastest.
Formula 37 works best!!!
When it is cold, the hair doesn't grow more than a few inches, which is why you never really need a haircut in the Antarctic. In hotter weather, the hair grows much faster, so summer would be the season that the hair grows the fastest.
Hair grows faster in warmer climate...generally in the summer.
Yes facial hair grows the fastest in men.
Permanent colour doesn't wear off. Your natural colour grows out. If you were grey before you dyed your hair then the roots will grow out grey. Colour doesn't make your hair turn grey.
You can just wait until your hair grows out , or you can dye your hair back to it's original color. (:
As your hair grows your natural colour will grow with the regrowth.
There aren't any types of chemcials that can be used to change hair colour. You can use hair dye. Most people wouldn't dye their today because it's hard work. Especially if your hair grows fast. Because your natural colour grows. Like when I a little I thought that dying your hair would actually change your hair colour. But that's impossible.
You are removing pigment. Melanin produces pigment (colour) so you are taking out the colour. When your naturl colour grows out again you can see that the melanin is still producing the colour.
Hair is already dead. There is no blood supply to the hair itself only to the follicle where it grows from. If you are asking about a dead persons hair then it is the same colour it was when they were alive.