HB – Structure and Functions of the skin(KCBT) You must first complete HB – What is Henna before viewing this LessonPlease sign up for the course before starting the lesson. HB - Contra indications(KCBT) HB - Health and Hygiene(KCBT) Back to: Henna Brows Course(KCBT) > HB - Manual (KCBT)