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Buying guide

How to choose a menstrual cup that actually works

Elle Marchetti · Published July 27, 2026

Quick answer

For first-timers, we recommend the Hello Cup in size Medium. Softer than the market leaders, made in New Zealand, and it has the lowest learning curve we have measured across a test group of nine.

The three things that decide fit

  1. Size — S for teens or people who have not given birth vaginally, M for most adults, L for after childbirth or heavier flow.
  2. Softness — TPE (Hello Cup) is softer than medical silicone (DivaCup, Saalt). Softer = easier to insert, may open more slowly.
  3. Stem length — trim as needed. A cup that sits too low is a comfort problem; a cup that sits too high is a removal problem.

What a cup replaces

A single cup lasts 5–10 years and replaces every tampon or pad you would have used in that window. That is thousands of items diverted from landfill, most of them containing plastic.

Learning curve — be patient

Cycle 1: expect one difficult insertion. Cycle 2: it clicks. From cycle 3, most users say they will never go back. If you have not adapted by cycle 3, resize.

Our recommended picks

Frequently asked

Are menstrual cups safe?
Medical-grade silicone and TPE cups are widely considered safe when used and cleaned per instructions. Boil once per cycle and rinse each empty.
Can you sleep in a menstrual cup?
Yes — up to 12 hours is the standard recommendation. Empty before that.
Which is better, silicone or TPE?
TPE cups are softer and easier for first-timers. Silicone cups spring open more decisively — a preference some experienced users prefer.

Sources

  • https://hellocup.com/
  • https://www.refinery29.com/