John Frieda Go Blonder!

Currently I am using John Frieda Go Blonder shampoo, conditioner and lightning spray and it works!
It said it doesn't on middle brown hair but it does! The one benefit is that my hair got a bit dry which is highly welcome as I have greasy hair. The other thing is that I realize I do like my natural brown color :)
I just saw a review about it on Youtube, where a girl said she had an allergic reaction from that product :( That sucks but then lately in the news were several cases of people suffering death or heavy alergic reactions after dying their hair..
Too scary!