I was afraid of the same problem before I went blond, but I had never previously dyed my hair before. All in all, it does depend on the previous state of your hair and how much damage will occur when coloring, as it was stated before.

My hair has been fine since coloring it and I would do it again, just be attentive to your curls.
last relaxer; 082708, BC; 081810, CG; 122410
high porosity, med/coarse texture, high density, color treated
condish;TN, DevaCurl Heaven in Hair stylers; Heaven in Hair, DevaCurl Curl Cream oils;Castor Oil

YTChannel: http://www.youtube.com/user/papiermachecurls