What is the procedure to remove permanent dye? How damaging is it and is it safe? I have the oriental black Bigen in my hair now and I want a bronze color. I am 4b all natural with resistant gray. Henna is out of the question because I think it is too tedious and time consuming- from what I've read. Any suggestions for color rinses that "take" to resistant gray? I had a beautician tell me my hair was damaged because I dyed my hair black with Bigen. How can you tell if your hair is damaged from dye with PPD- ie Bigen? How long should one wait before coloring hair? I dyed my hair Nov. 25, 2007. The grays are started to show. Thanks in advance ladies.