It's always been blue.
If you watch the episode where she and Homer meet as kids at summer camp it's still blue.
it is blue dah :P
make sure the natural hair isn't broken or has any damage in the skin before applying the hair colour.
because it will take the colour our of the hair
Your hair needs to be clean before you apply a colour. Do it the next day after you wash your hair. Greasy hair won't take the colour to well and it is not advisable to put colour on freshly washed hair unless it is stated on the instructions.
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.
No. Your hair should be clean before you colour it so it should not have any styling products in it at all. This build up can block the colour from entering the hair properly.
Yes, & you should. Your hair should be really clean, actually, before colouring it. If it is not, the colour will not take as well.
It depends on what your eye colour and facial features are. It also matters on what colour your hair is now and if it has been dyed a colour before. Ask your local hairdresser.
Dirty blonde
There is no universal "sexy" hair colour. Hair colour is a personal preference. Your hair colour should be a similar shade to your eyebrows and should compliment your eyes. Ask a professional hair stylist what colour suits you.
Hair colour is continuous because there is a continual range of values when it comes to hair colour
Can I colour my hair after shingles