I used to have fairly thick, full hair but now it's all stringy, very thin and the whole thing from root to tips looks like dead/split ends. I have never been 100% sure if it's from verzenio, exemestane or lupron or all 3. I pretty much started on them all at the same time, so it was hard to know what came from what. My hair thinned out in clumps, starting after about 6 months of beginning all of the above and has never come back to anything more but I am still on all that same stuff. I have tried different supplements, shampoos, etc... I have yet to find anything that has helped. If yours was caused by the Anastrazole and it very well could have been, I am not sure how long it takes for everything to get back to normal hormone wise and then for hair to regrow can take a while after. Hair growth cycles and all that. Hopefully it will just take some more time.