Absolutely amazing! This is the strongest bleach ever! Unfortunately it burnt my scalp which I've never experienced before even though I've used all different kinds of bleach...maybe I was just allergic to it. You can leave it on for up to 90 minutes but I only lasted 20 because of the irritation. It did a good job though and my hair went really light blonde. Loved it! I'll be applying it in foils in future to avoid my scalp.
5 stars anyway!!

NOTE FROM BEEUNIQUE: Always try to avoid getting any bleach on the scalp as this could cause burns and skin irritation - a sensitivity test prior to use should give an indication of any possible reaction.