Period Cup Size Guide: Which Lunette Size Do I Need?
Quick answer: choose Lunette Size 1 for a light to medium flow, a low cervix, a sensitive bladder or strong pelvic floor muscles, and for teens. Choose Size 2 for a medium to heavy flow or a higher cervix. Both are 72 mm long including the stem; Size 2 is wider and holds 30 ml instead of 25 ml.
What is the difference between Size 1 and Size 2?
Size 2 is wider, holds more and is made of firmer silicone. Size 1 is softer, with a slightly longer stem. Both sizes hold more than 2 to 3 tampons' worth of fluid.
| Size 1 | Size 2 | |
|---|---|---|
| Best for | Light to medium flow, a low cervix, teens, strong pelvic floor muscles or a sensitive bladder | Medium to heavy flow or a higher cervix |
| Capacity | 25 ml | 30 ml |
| Diameter | 41 mm | 46 mm |
| Length including stem | 72 mm | 72 mm |
| Stem | 25 mm | 20 mm |
| Silicone | Softer | Firmer |
| Measuring lines | 5 ml and 13.5 ml | 7.5 ml and 15 ml |
Which period cup size should I choose?
Lunette's sizing advice, by flow and body:
- Size 1: light to medium flow, a low cervix, teens, strong pelvic floor muscles, a sensitive bladder.
- Size 2: medium to heavy flow, a higher cervix.
Does my cervix height change which cup I need?
Yes. Lunette recommends Size 1 for a low cervix and Size 2 for a higher cervix. Our guide to high cervix, low cervix and your period cup explains how cervix height affects fit.
Frequently asked questions
What size period cup is best for teens?
Lunette recommends Size 1 for teens. It is the softer of the two cups, 41 mm wide, and holds 25 ml, which is more than 2 to 3 tampons' worth of fluid.
How much does a period cup hold?
Lunette Size 1 holds 25 ml and Size 2 holds 30 ml. Both hold more than 2 to 3 tampons' worth of fluid, and each has two measuring lines (5 ml and 13.5 ml on Size 1, 7.5 ml and 15 ml on Size 2) so you can see how much you have collected.
Is a menstrual cup the same as a period cup?
Yes. "Menstrual cup" and "period cup" are two names for the same product: a soft, reusable cup that collects blood instead of absorbing it. The Lunette cup is made in Finland from 100% medical-grade silicone.
How long does a Lunette cup last?
With proper care, a Lunette cup lasts up to 10 years. Wash it each time you empty it. Boil 5 minutes before first use and after each completed cycle.
Found your size? Choose Size 1 or Size 2 on the Lunette period cup page.
This page is general information about choosing and caring for a Lunette cup. It is not medical advice. If you have pain, unusual discharge or a strong smell that doesn't go away, talk to your doctor or nurse.
