@equilla I lost about 50% of my hair during chemo, but I also used the cold capping. That being said, I saw a video about Humby Organics Blueberry Fields shampoo bar which stated a women going through chemo using the bar had active hair growth during chemo. I started using that after my second chemo treatment. Within about 2 weeks, my hair loss was still active, but it seemed less. Then after about 3-4 weeks I noticed active hair growth while still on chemo. I am still using the shampoo bar while now on Letrozole and my hair loss is minimal. I also use a hair vitamin called Hair Effects which my naturopath has suggested. Everyone's response to medication and products is different, but this has been successful for me. Hope this helped. BTW, I told them I was currently going through chemo and they sent me a complementary shampoo and conditioner bar. It was such a generous act on their part and now they have a grateful and loyal customer. Plus, it makes my hair feel really clean! Best of luck to you!