I use L'Oreal Excellence, because of the applicator. It is a multiple tip applicator, like a comb. Combs thru better than the single tip applicators. I use 6R because I always wanted to be a redhead. People think that it is my natural color (my natural color is a dark ash brown). My grey hair is a nasty mousy grey color, not a pretty silvery white. So until it gets to that pretty shade, color me red.