The shelf life of tea seed oil can be kept for two years at room temperature, and it should be used up within three months after opening. Tea seed oil contains a lot of active ingredients, vitamins, etc. Of course, the fresher the tea seed oil is used, the better, and the small package can better lock the freshness. Expired tea seed oil will have adverse effects on human stomach and intestines, and even cause toxic reactions. When storing tea seed oil, tighten the bottle cap after each use and put it in a cool place.