I've had mixed experiences with this product. My last two uses couldn't be more different from one another. The previous attempt was to go fully Blue Black. The color did not deposit well and faded within a week. This most recent time, I did a reverse ombre using Blackberry Mojito, and I'm beyond pleased with the results. I recommend using a hair mask in the first few days after applying this product, as it can be damaging to your hair.