They have to take extra care for hair like good conditioning(oiling(argan,jojoba,rose hip,avocado,coconut,castor,etc) deep conditioning overnigth or 2hours treatment) and if the hair are weak and break easily they will have to trim hair more often. i'm really used to Hairjob so i know how to take care of hair. this fetish is a 2 side sword.You have to be careful unfortunately.