beauty hair color creme is the first dermatologicalpermanente hair colour to contain plants extracts clinically testeddid you do the sensitivity test 48 hours agoif not,please refer to the "sensitivity test" paragraphadvice for use1.preparationbefore starting,cover your shoulders with a towel to protect your clothing and put on the gloves(f).pour the contents of the colouring cleam(a) into the bottle of colour devdloper(b).