i know they show you strand tests but i was still skeptical but convinced enough to bargain on it. i had my hair professionally lightened to almost bleach blonde on the ends. i used the deep condition on dry hair and let process for time directed. i was like ‘watch, all this is going to wash off in the shower’ the process was just SO EASY even for my long hair. it has a nice minty smell to it too. i was stunned when i got outta the shower. it worked way better than i ever expected! when my hair dried, my hair was GLOWING. seriously so in love with the results. it turned out more neon than i was expecting but i wasnt mad, it still looked good. and the color lasted way longer than any other permanent dye ive tried. ((and the hot showers are nice!) 11/10 would buy again. cant wait to try more colors and combinations.