You will never need to buy a replacement cartridge. It is a lifelong purchase. IPL hair removal device puts hair follicles to sleep and breaks the cycle of hair regrowth. The result is permanent hair removal and permanently smooth skin. IPL hair removal system adopted the same clinically proven IPL tech used by dermatologist and beauty salons. The principle is to emit a strong pulse and be absorbed by the hair follicle, stimulates hair follicle to enter dormant period to achieving permanent hair removal. 5 different energy levels to adapt different skin. You can adjust the level according to the skin area and hair growth speed. Two modes design can satisfy your demands on different hair removal parts. The Manual Mode is mainly used for small area hair removal, such as bikini line, armpit, fingers, lips; Auto Mode can be used for large hair removal area, such as arms, legs, stomach and back. Whole Body Treatment: The permanent hair removal device is safe and effective for women and men. It is designed for use on the face, legs, arms, underarms, bikini lines, and other areas of the body where unwanted hair grows. - Use at Home IPL hair removal for women is designed for corded use – just plug the device into the mains and start using. Compact design for easy handling and effortless treatment at home. - Product Description: Five adjustable optional energy level according to the skin tolerance. Providing the gentle treatment painlessly and easily, without hurting the skin. The LED light can clearly show the energy level. - The manual mode is self-operation. Automatic mode will release flashes after every 3 seconds to the skin when it’s on AUTO mode. Manual mode (flash mode) is mainly used for small area hair removal, such as bikini lines, underarms, fingers, lips. *Please do not use it around eyes. Automatic mode (sliding mode) can be used in large epilating areas such as arms, legs, and back. Only need use IPL hair removal for 8 weeks you can get smooth skin.1-4 weeks:The hair become thinner;5-7 weeks:The hair grow slowly and most of hair will not grow again; More than 8 weeks:The hair falls off at the root, leaving no black spots. Using our IPL hair removal is definitely painless and safe. Your skin will just feel a little heat and it will not cause any vestigial on the skin. - The light will just affect on hair follicles and it will not hurt your skin. - Laser Hair removal for women permanent works effectively on light to medium skin tones with hair ranging from natural brown to dark brown or black. Facial hair removal for women can not work effectively on blonde, red, gray or white hair where the smaller amount of melanin does not absorb the light. Also, this IPL permanent hair removal NOT suitable for very dark skin. The best results are shown on darker hair and fair skin. - Includes: 1 x IPL hair removal 1 protective glass 1 power adapter 1 user manual 1 x razor