This product, while it coloured my hair to the letter, stained absolutely everything around it. This included my skin, the bathtub, the floor, just everything, despite the futile effort of using towels to cover things. It actually took neat bleach to get it off everything and it was just a nightmare. The colour continued to bleed out of my hair for almost 2 weeks and kept staining, meaning the use of more and more bleach.
While on the subject of bleach, the kit included in the box wasn't completely awful, it lightened my hair to a yellow, but thankfully I wasn't looking to cover the whole hair. It just wouldn't have covered it due to my very thick hair even though shoulder length. The blue has lasted a while, but I don't think I will use this product again. Sorry, Splat!