Companies that work with disposable sanitary protection such as pads and tampons prefer to have repeat customers rather than customers who rarely make a purchase, such as menstrual cup customers. So marketing menstrual cups is not as appealing for them. We who work at FlowCup have followed the menstrual cup market for seven years. Compared with the surveys we performed in 2010, we observe a rapidly rising trend for menstrual cups. We believe that menstrual cups are the sanitary protection of the future.