For starters, I started going grey when I was 14. I am 29 now. To top it all off, I was born with natural black hair. Every 6 weeks after coloring I end up with an inch and half of half black half tinsel roots. I have my usual brand of hair color, but I decided to strip all of my previous hair color out (see my other review) and start again. Garnier Nutrisse Mousse was very easy to use, and did not have a very strong smell, it rinsed very easily. I also loved the conditioner included, smelled great. The next day, when I could see my new color in the sun, I was very happy. I always wait at least 3-4 days to shampoo after coloring, and upon drying my hair after the first shampoo, I COULD SEE MY GREY ROOTS. So, overall, great ease of use, not bad smelling, great color. BAD for grey coverage. Will not be using again.