I picked this up at Sally's when I did a major haul of products. I was going from a red/brown color to gray, and picked up a ton of products to get me there and help maintain the color. This is one of the products I've been using to maintain a gray hue to my hair, and I have both #41 True Steel, and #42 Silver Lining for the gray colors. I also picked up #27 Tempting Taffy. I have only used the gray shades, and I have found the product a bit of a hassle to use. It is something you get better with overtime, and you have to figure out what works for you. The directions tell you to put it on damp/towel-dried hair, which doesn't work too well for me. I have hair that never wants to dry, and the product adds a ton of wetness if you are trying to fully cover your hair. I usually let my hair dry 99% before I put the rinse on, and then blow dry. The color and coverage were just what I was looking for, but because my hair takes over an hour to go from wet to how I like it styled this is something I have to plan a good chunk of time to use. I think trying the mouse version might take less time since I'd think it would add less moisture to the hair.