Water will not make the hair break off. If she didn't have this problem before then it has to be the tweezing. My knee jerk response is she is tweaking on her hair (with or without drugs, end result the same) and is also responsible for the breakage and discoleration. Peeling Cream and Glyco A gel can help, but not if she brings it too far, she will possible over exfoliate and cause more problems. Preceed carefully with more attention paid to how she will follow your guidelines than getting a great result. I say this because if you don't feel she will follow your word she can end up with much worse and blame you. gabish?