Four treasures brought by bees to human beings: one is propolis, which can sterilize and diminish inflammation, enhance immunity, dredge blood vessels and balance metabolism; The second is royal jelly that delays aging and nourishes nerves; The third is honey that clears away heat and detoxifies, moistens the lungs and laxatives; The fourth is to regulate endocrine and beauty beauty's pollen. These four treasures are natural and have no toxic side effects, and they are the best health care products for human beings.