When do I start timing my processing time? July 09, 2020 12:21 Updated You should begin the timer once you have completed the full application as described in the instructions. Related articles What happens if I leave in Madison Reed hair color for too long? Should I color the entire length of my hair each time? How do I treat color-resistant gray hair? What happens if I rinse Madison Reed hair color out earlier than instructed? How can I apply Madison Reed Radiant Cream Color and Color Reviving Gloss together? Comments 0 comments Article is closed for comments.