Color comes back
At first this was a MIRACLE worker, I've dyed my hair vivid for 18 years and NEVER had anything like this.  That said....some things are too good to be true....throughout the day my color magically reappeared.  :/  that said. It's significantly lighter.  Besides blue is a notoriously stubborn color.  And yea it smells weird, the 2 smells nice but the 1 kinda smells sour at first and then your hair smells like Nair for a few days after.  It went away quick, really NBD if you seriously want your hair color out.  Would I recommend?  Sure, it still worked.  Just remember some things really are too good to be true!!
Rating: 4 stars