God it's amazing. Been using box dyes for ages to cover the greys in my brown hair. My hair was in terrible condition, dry, thinning, breaking off etc.
Tried the reddy brown Lush henna, it's a gorgeous colour, plus has left it really glossy, hasn't been this shiny all over since I was in my 20s.
Did it about 4 weeks ago and the colour and shine is still as good as when I first did it. Will never use a box dye again.
Promise I don't work for them, just needed to share the love!