If you want purple hair....
I have silver hair, and it needs a "touch up" once a week with a special shampoo.  I've tried other brands, started with Clairol's Shimmer Lights, too harsh, and eventually ended up trying this brand due to all the great reviews.  I wish I could return it.  I much prefer the Touch of Silver brand for a few reasons: smells better,  you don't need to hear gloves in order to use and doesn't leave your hair with the "old lady syndrome of purple hair!"  I leave it on for two minutes, least amount recommended to get rid of brassiness and I always have a tint of purple in my hair after use.  It usually goes away after a couple of shampoos, but that's not the point.  Touch of Silver is less expensive (yes it's a smaller bottle and comes from overseas) but it doesn't stain your hair or hands and does the job much better in my opinion.
Rating: 2 stars