28 Oct [Quiz] Chapter 16-20 Posted at 13:18h in Esthetics by admin Choose your quiz and download ! CHAPTER16. Mask Therapy in Facial Treatments Download Quiz CHAPTER17. Facial Treatments without the Aid of Machines Download Quiz CHAPTER18. Electricity, Machines, and Apparatus for Professional Skin Care Download Quiz CHAPTER19. Facial Treatments with the Aid of Machines Download Quiz CHAPTER20. Removing Unwanted Hair Download Quiz