You can wash them as you would your own Shampoo and conditioner. We also recommend using a hair treatment on them every few weeks, because the hair is not attached to your scalp, it is not getting the oils it should be. Using a treatment/hair mask will help keep them looking healthier and shiny for longer! You will find that you don`t need to wash your hair product too much, about every 3 weeks. The hair can be blow dried on low setting, but it is not recommended to do it too often. It is best to let your hair product dry naturally after washing them.