A week, for the most part. Sometimes two weeks but not longer than that. I may cowash at least two to three times during the week. I wear 12 twists under my wig so on wash day, I take down each twist, spritz my hair with water and a bit of conditioner and detangle each section one by one. I wash my hair and deep condition in these twists as well.
alive I start out with my fingers at first. Then once I feel like most of the shed hair has been removed, I use a large-toothed, seamless comb.