Main lipid content of camellia oil is very similar to our skin content. Safe for a delicate skin. Camellia oil gives brilliant shine and moisture into hair. Both side of the brush has a sheet what contains camellia oil, leaving hair moist. Material: abs resin, polyethylene resin, urethane. Heat resistant unto 80a"ƒ(176f). Each camellia sheet contains 1.3ml of camellia oil. Do not use if your scalp has skin problems. If irritation occurs, stop using it immediately and consult a doctor. Do not keep blowing the hot air from hair dryer. Do not use too much alcohol containing hair styling product. Camellia sheet does not come off. To clean, rinse the brush with water, remove excess water, then dry in a shady area. Do not use a detergent to clean the brush. If you poke the camellia sheet too hard, camellia oil may come out. The camellia sheet lasts for about a year and a half.