Evening Primrose is a plant native to North America known for its yellow and fragrant flowers. Its seeds, Yue jian cao zi, are recommended for women who are subject to difficult menstruation.

Indeed, Yue jian cao zi helps regulate the cycle and calms pre-menstrual discomfort such as hot flashes, irritability, stomach aches and breast tenderness for example. Thus, Yue jian cao zi allows women to live their menstrual cycle healthily, without discomfort or suffering.