I have been bleaching my hair on and off, and dying it bright colors. But, for the past few months, I stopped bleaching it, and only died it. The bleached bit is growing out now, and I have found that the dye does not stick well to my unbleached hair, and ends up staining my pillow cases and getting all over my face, even after it's been set for a while.
So, I want to rebleach my hair.
But, I really do like my hair when it's not bleached, and would, at some point in the distant future, like to let my natural hair color grow out.
Is it possible to bleach your hair too much? Can you damage the roots and perminantly damage your hair by bleaching it? How often is too often?