A2. VEYFUN Laser Hair Removal Device IPL Hair Removal with Ice Mode. IPL TechnologyTaking advanced IPL technology that penetrates into the hair follicles and breaks the cycle of hair regrowth.1-4 weeks: 3 Times a week. Over 75% of hair starts to fall off naturally.5-6 weeks: Twice a week. New hair falls off and is inhibited.7-8 weeks: Once a week. Hair becomes thinner and less without growing back. Tips: The interval time of using depends on the growth speed of your hair. The growth speeds of hair on different areas are distinct. It may take longer time to see effects for areas with much more hair