1.Herbal hair color cream 2.3*100ML 3.Keep the effect for at ... of scalp, wear the bath cap to maintain temperature for 10 minutes(the temperature is between 25-30), then rinse ... thick hard hair, it will be better to extend the holding time of 1# pharmacy for 10 minutes, and 2#, 3# ... such as aniline, for people who are sensitive to aniline hair dye, no need to allergy testing when using this product ...