I dyed my hair black about two weeks ago and want to dye it green next week for an event I'm going to. How safe would that be? I have a fear of my hair falling out! LOL.

Have you thought about getting the spray that comes in assorted colors for hair, it works really well and comes in some cool colors for Halloween or for whatever. Good luck,

Everything will depend on what condition your hair is in. I think gailstorm's idea on the spray would be the safest way to go.