This is not my favorite hair coloring product. It's extrememly messy, takes forever to rinse the glop out, and it leaves your hair dull looking and feeling like straw. Also, for me, the color change was far too subtle, even after an hour. There is, however, a LOT of product for the money--you could easily do two applications from one box for long hair or more for short hair. If you want safe, SUBTLE color/highlights, this might be your thing. Just use a conditioner, especially one that gives shine to the hair. (See my review for the red shade)