I selected Affirm Normal and Affirm Mild as my relaxer systems mainly because they work without the burning. I used the Normal strength to go through the midshaft through the ends. I then went back to the roots and applied the Mild strength. Initially, I put a 2 inch guide of relaxer throughout the hair about an inch or inch and a half away from the scalp to allow me to go through a second pass to get from my relaxer guide down the mid-shaft and all the way through the ends. The roots and hairline were covered at my third pass through the hair. I completed the first and second passes within 20 minutes. The product was very heavy on the hair. I had to gently fight to get the hair parted to evenly distribute Mild relaxer to the remaining roots, but we successfully completed the full virgin relaxer application and smoothing within 35 minutes. The salon temperature was cool. The length was extremely long. Medium length hair will have taken less time.