Mooncup Menstrual Cup - Size B (1). The healthy alternative to tampons.The Mooncup is a reusable menstrual cup, around two inches long and made from soft medical grade silicone. It is worn internally a lot lower than a tampon but, while tampons and pads absorb menstrual fluid, the Mooncup collects it.. This means it doesn’t cause dryness or irritation.. Because the Mooncup is reusable, you only need one so it saves you money and helps the environment, too.. Reusable. Up to 8 hours protection. Latex Free. Eco Friendly