Depending on what colour the hair dye. Your hair will change colour twice
by black dye\
Dye a strip of the hair colour in to your hair, then if you like it go with the full head :)
You dye your hair with the colour you want, lighten the colour.
you dye your hair black
No it doesn't. The dye only affects the hair and because you have no hair on your head it will not change colour.
You can dye your hair inexpensiviely, or bleach (draining your hair of colour) your hair.
No, the colour of an individual hair depend on the inherited gene hair colour of which they have obtained from their parents however if you were to dye your hair permanent it does remain the desired colour but new growths will be your natural hair colour as the chemicals used in dyeing your hair do not penetrate into the roots. Continuous application is required to maintain that hair colour.
All hair dye is potentially damaging. If you colour & maintain your hair properly, yes, it can be bad.
you dont dye your hair blonde you remove all colour pigment with bleach
yes, but whatever colour you dye it will be lighter than on un-bleached hair
Ask your friends.