You have to listen to your hair and find out how "clean" you need to be . . Like cocoj I do it every week because I use a lot of products ie gel, conditioners, butters, oils ect. I also cowash about every two days. I dont use cones but since my hair is fine i still get buildup easily. I need all product out of my hair once a week for clean slate. I just gave my cousin a Shea Moisture shampoo from the hibiscus line because it wasnt getting my hair clean enough.