Cannot yet speak for how long the color will last ...
Cannot yet speak for how long the color will last on hair as we colored just a few days ago  However I would say DO NOT BUY THIS PRODUCT unless you want your porcelain tub to be the same color as your hair. We have tried 5 different cleaning solutions and none have worked. We followed all directions during application and now have purple splatters and a purple tint to our entire tub. The white shower mat is now purple and can be replaced but our tub is ruined.
Rating: 1 stars