Am passionate about this color. You only need very little of it, and with that comes a long way since it's such a strong color. You can also make beautiful transitions or color facets, by taking more color in some places and in some less, then you have a nice change from light blue to turquoise and dark turquoise head. Have the color mixed with something very normal conditioner after I read this on the Internet, and has worked wonderfully and the hair is thus very soft and will not damage afterwards. (Thus you get even more color out than what is in the package). the shelf life is of course not for forever, but is also clearly at a tint. have your hair washed 3 times so far, and some places are a bit faded, but that does not look bad! if you're just a person who should consider whether VLT it pays to color the hair so every day washes the hair. Caution, however, the dyeing, the color turns veeeery much everything else on which are not hair, eg the sink or the ears take good else that is blue for a long time ne. All in all, however, to use and the result is a great product and great value for money at !! :)