I just finished 5 years of Anastrazole. I had hair thinning more than I ever noticed before treatment. I was advised not to wash my hair more than twice a week, not to use a hot setting on the hairdryer, and to use a wet dry brush to brush my hair gently. My beautician told me I did not have any “bald” spots. I was also told supplements were useless considering it’s a side effect of medication for cancer. That being said, if you try them and you think they work. Great. Best to you.