My Stylist Changed Chemical Relaxers and I Lost Hair!

On 8/28/08 my hair stylist changed relaxers without my knowledge. As a result, I have experienced hair loss, hair breakage and thinning. I was told that I will need to have the overprocessed hair cut. I was hoping this issue would resolve itself. By using leave in conditioners and taking vitamins. However, my hair remains damaged. My normal hair length is long and coarse(well at one time). I have been told that I will need to cut most of my hair and allow it opportunity to grow healthy again. Do you think it may grow healthy again?

The good news is that the damage was probably not impacting the hair below the skin, so eventually, the hair that is damaged will be replaced by new hair growing at the normal rate of 1/2 inch per month.