After using the serum for 3 weeks I am extremely impressed. Initially I had more hair loss for couple of days but that was mostly for serum effect to start working. After week of usage I could visibly see less hair falling during hair wash or while combing. After 3 weeks I am so happy with this product, I cannot believe that I actually have just few hair stands while washing and well almost none while combing. For me controlling my rapid hair fall was very important as with thin hair texture my hair looks really limp.