Dying greasy hair

I havent washed my hair since the the day before yesterday can they still dye it?

the salon people will wash it for you if it's necessary. if you're doing an at-home dye, they actually recommend that your hair is dirty so the color sticks..

dont wash yoiur hair, the color does stick to dirty hair and the color does stay longer, your hair dresser will be pleased if you have dirty hair, lol

after she colors it then she'll wash it, notice evrytime you do go get your hair dyed they dont wash and dry before they do it after.

you should really wash your hair at a routine where your hair is halthy and it does not become greasy. if you dye your hair you should have a routine to wash your hair often so your dye colour does not become dull, try using pantene pro v colour protect hair shampoo