Help
I have shoulder length dark drown straight hair. Up to now image been pretty lucky with my hair, it its mostly shiny and easy to manage. Just recently turned 40 and my hair has gone mad. Besides the greys, which I can cope with, I have lots of frizzy short bits that stick up on top of my head, weird whispy bits around my temples and it is just generally awful. My hairdresser says the frizzy bits are not broken damaged hairs but new hairs 
I have tried all sorts of shampoos and conditioners promising the earth, some worked for a short while before going back to frizz mad madness. Is there any miracle cure out there? Would supplements help?
TIA