Processing time is 35 minutes, however, when you work on rough hair, always check the desired result before removal. Extend the processing time from 5-15 minutes if necessary. When working at high levels the hair, the corresponding color base will be required in the formula. When you add in the corresponding shade base, you should also add in master mix to support the tone of destination. Note: The picture does not show the final results guaranteed as all the results of colors may vary depending on the hair type and texture.