Update:
Cannot notice an increase of shedding more to the point I might be shedding less, used to notice hair strands everywhere, on my desk, laptop, pillows etc
Initially experienced headache when applying zix, now gone
Generally I feel my hair looks healthier - too early to say if zix is doing anything or if this is because I switched shampoos, was previously using Alpecin coffee shampoo.
After rubbing my hair though my hair, it feels slightly thicker on the side I am applying zix than the one I am not
I have dropped castor oil, don't think it was doing anything.