I'm 15 years old, and not sure what size to choose

We designed our smaller Lunette menstrual cup (size 1) specifically for younger users.

Not only is it smaller and shorter - it is squishier in consistency for easier insertion.

We recommend the smaller Lunette Cup Model 1 also for young users who have a heavy flow. Why? Because your muscles and hymen are tighter, it's easier to insert the smaller cup.