Shenzhen Lida Intelligent Electronics Co., Ltd. is based in China and lists the Sapphire Freezing Point Depilation Instrument on Global Trade Plaza. The device uses IPL intense pulsed light, which is absorbed by melanin in hair follicles and converted to heat to inhibit hair growth. A flat sapphire lamp holder emits energy close to the hair follicle root and presses the skin to aid melanin absorption.