Review (4/5): Long Lasting Color
This product, if used with bleach, leaves a very vivid and intense hair color that has lasted for over five months for me so far.
There are a few drawbacks though: it really is very messy. I've used natural color hair dyes for years now, and never had a mess issue. But this stuff is serious about the mess warnings. The dye will wash off of the skin within a week (I used a little alcohol to help strip it), but it's better to just use petroleum jelly.
And, secondly, if you hair is even slightly longer than your shoulders, you need to buy more than one kit. Neither the bleach or the dye in one kit was enough for my hair, only slightly past my shoulders, so I needed to purchase two to get the entire effect. It's worth it, but it's a warning that should be taken into consideration.
That said, it's a very nice, if slightly messy (three months later and the color still runs in the shower) hair dye.