While this product is called the Nixit Menstrual Cup ($42), it's a menstrual disc that's meant to be placed above the vaginal canal toward the base of the cervix. Made of 100-percent medical-grade, BPA-free silicone, it's one of the most popular menstrual discs out there. Many shoppers give it rave reviews for being comfortable and reliable at preventing leaks. However, like many menstrual discs and cups, some shoppers note there is a slight learning curve when it comes to insertion and removal.