I just happened to pick these up @sallybeauty buy 2 get one free. So I picked up flamingo pink, red, and, jade. I decided to go with the jade first. Directions say to leave on for 20-40 minutes depending on the intensity of the color desired. Well I've used this brand before and my results last time were good but not great. When I want color in my hair, I want Color in it. So to achieve a much more intense color finish I decided to try something a little different.. This is probably going to sound funny but it works for me every time. After I get the product thoroughly deposited throughout my hair, I then take and wrap around it with saran wrap. Then I take my blow dryer and warrmed my head on low heat and lowest setting of power for about 1 minute. Finally I wrap my head in a towel to help keep my head warm. Haha after the little hair ceremony, lol, I did and chill for the remainder of the 40 minutes. :-) I can't believe I just shared this with you. Omg. Proud of myself for sharing. Below are pictures of before after and about about 3 weeks out.