... at home 2Easy to fill, use and clean 3Put hair dye right where you want it Usage:1.Please wear the ... comb tenoning appears amount of foam,Then comb and dye the hair .(this two button is to control the value of ... hair colorants foam and fixativefixer foam appeared in the ... fade,comb with fragrance,it's can comb and dye by yourself,no side effects to the human body. ...