Alchemic Shampoo

OMG!!! I know that you shouldn't review something after having used it just once, but holy snap peeps of MUA, this color shampoo and conditioner has transformed my hair from washed out reddish...

I bought this in 'silver' because my hair at the moment is lightened from natural medium blonde to an intense platinum blonde. I'm paranoid, in particular, about my roots looking slightly...