... ,not hurt the scalp,not block pores,it's very safe and can attached on the scalp ... Gastrodia elata Blume,Rehmannia,Sophora flavescens,dodder seed,and Rhizoma Ligusticum with variety of natural herbal ... follow the hair lines and start it from the back to the front.Block the forehead to avoid ... you feel large quantities from the bottle,please lean against the scalp and slide back and forth,meanwhile ...