An early version of a bell-shaped menstrual cup made of rubber was patented already back in 1932, by the midwifery group of McGlasson and Perkins.
In 1987, a latex rubber menstrual cup, The Keeper, was manufactured in the United States. This proved to be the first commercially viable menstrual cup and it is still hot on the market. Mooncup in the UK introduced the first menstrual cup made out of medical silicone.
Most menstrual cups are currently manufactured from medical grade silicone because of its durability, hypoallergenic properties and flexibility.
Menstrual cups are becoming more used worldwide, with many brands on the market. There are different designs, sizes and colors.