Mooncup Menstrual Cup Size B


Mooncup® is the original, soft, medical-grade silicone menstrual cup designed by women as the convenient, safe and eco-friendly alternative to tampons and pads. It is the best known brand in the UK and has been sold since 2002.

7 in stock


The Mooncup is…


Made from soft, medical-grade silicone, it’s so comfortable you can’t feel it’s there.  While tampons absorb 35% vaginal moisture, the Mooncup menstrual cup won’t dry you out or leave fibres behind.


Your Mooncup is always there, ready. No last minute dash to the shops, no stockpiling different absorbency pads or tampons. The Mooncup frees you from having to throw away used products or carry bulky spares (whether smuggled up your sleeve as you head to the toilet or taking up backpack space on your travels).


Holding 3 x more than a regular tampon, the Mooncup gives you longer lasting protection on heavier days. And because it’s non-absorbent, it won’t cause dryness when your period’s light.


You only need one Mooncup® that pays for itself after 6-8 months – you’re then saving that monthly spend on sanitary protection.


Latex-freehypoallergenic and containing no dyes, perfumes, BPA, phthalates, plastic, bleaches or toxins, the Mooncup menstrual cup is ideal if you have sensitive skin or allergies.

More than just a product

Once you’ve bought your Mooncup, we’re here for you if you need support. We offer a unique telephone and email Advice Service on run by medical health professionals. You can be assured that the Mooncup® is manufactured in the UK to the highest quality standards – Mooncup Ltd is ISO 13485 certified and is registered with the FDA.


Choose the right size for you following the simple guidelines below:


Choose size A if you:

  •  Are 30 and over


  • Have given birth vaginally whatever your age


Choose size B if you:

  • Are under 30 have not given birth vaginally

Size A is 3mm bigger than size B – a small difference but it is important!


  • Size A measures 46mm in diameter and 50mm in length.
  • Size B measures 43 mm in diameter and 50mm in length.

Both sizes have a stem 21mm long, which you can trim to the length that is right for you.

The Mooncup menstrual cup holds 3 times more blood than a regular tampon.*

The size A Mooncup can hold 29.3 millilitres, and the size B Mooncup can hold 28.8 millilitres to the rim.

However, you will still need to empty your Mooncup® every 4 to 8 hours, depending on your menstrual flow, and always after a night’s sleep.

*Tampons can hold anything from 6  to 18 millilitres depending on the absorbency you choose (Regular to Super Plus Extra).

Fairtrade unbleached organic cotton storage bag
Usage instructions printed on 100% recycled paper

Your Mooncup’s storage bag has been made from unbleached organic cotton by a Fairtrade Foundation accredited business.

All Mooncup packaging and promotional materials are produced by the UK’s leading environmental printer who work to the internationally recognised ISO quality and environmental management standards.


You may also like…