Buxus gave me a much nicer colour, closer to my own medium ash brown - my colour tests on samples of white lambswool, angora, and mohair revealed that the buxus dye colour, on its own, is a drab greyish-blue, and indigo on its own was a more vibrant, pure blue. Henna + indigo gave me a reddish-brown with purply undertones. Henna + buxus gave me a true, ashy medium brown. Unfortunately, the buxus faded out of my hair after only three shampoos, every time I used it, so I gave up. Too much time, trouble, and money for the length of time it stuck around. And it's too bad, 'cause the colour was great. If you want to try some, I still have two unopened bags left someone could have for cheap!