I'm praying that Mizani BB is the TRUTH because I just went out and purchased it in enough bulk to get me through the next 3 years!!!
As for taking it to yur stylist, I don't see why not!! As my LHCF sisters told me, if they have a problem with you carefully instructing them on how to care for YOUR hair then they're probably not the ones to trust WITH your hair. I know that I plan to either have a trusted friend help me with my July touch-up or, worst case, take my own in to the shop to have applied.