I have noticed that each relaxer I do, my hair is thinning at the scalp. I am wondering what I am doing wrong. I think I do many things right: grease the scalp and the relaxed hair, stretch about 8 weeks, castor oil, Ovations on scalp. My hair is longer at each relaxer, but at the scalp it is thinned out. I use Motions regular relaxer. Could I be leaving it too long or should I use mild instead. Most of my hair is relaxed after each touchup, but then there are a few spots that are underprocessed. PS. I do my relaxers at home.