Cream Developer helps in acheiving the desired shades effectively and makes the color last longer. Its advanced conditioning formula with special hair protecting factor does not damage the hair. It makes them soft & silky. It is Convenient to use and the Oxygen released in the process helps the color get easily into the hair. After choosing the right color and developer (6%, 9% or 12%), correct ratio is necessary. The recommended ratio is 1:1. Always mix the cream and developer properly before applying on the hair.