You betcha! Mme L'Ovary is every menstrual cup's best friend, an ideal COMPLEMENT or even an outright replacement! With our undies, you can choose when you want to let your blood flow out naturally – no need for a foreign object to collect it inside you. Go that route, and not only will you likely feel pretty liberated, you’ll also get fewer menstrual cramps. And even if you do wear your cup throughout the day, it’s always nice to get a break at night. According to Health Canada and several gynecologists, you shouldn’t leave a menstrual cup inside your vagina for more than 4 to 6 hours. Something to think about! For more information on why you might want to choose menstrual panties over menstrual cups, Check this out!