WRT to Rudy's query further down, I read somewhere that there are henna types which are mixed with indigo dyes. Not sure how well it works.
I also heard tell of a stick called antigrey, which was used to touch up hair. Never come across it in the stores, though.
A lady told me that she touches up her hair with eyebrow pencil. But I am not sure how safe it is.
Sam
Sam the henna dyes work awesome and its great for your hair! I've been using it for three years now! Checkout mehandi.com
WRT to Rudy's query further down, I read somewhere that there are henna types which are mixed with indigo dyes. Not sure how well it works.