• Just Giving

    Another inspiring story from a Mum who didn't get to take her baby home just reached us here at Innermost Secrets.  She experienced reduced movements later in her pregnancy (she ...

    Full story

  • Get knitted! (or crochet if you prefer)

    Any of you who have attended one of our Parentcraft classes is likely to have met Libby, our midwife.  She also works at UHW and is trying to promote skin ...

    Full story

  • Book review

    This blog has been a bit neglected lately as life got in the way of cyber postings but gathering dust on my bookshelf sat a book that Dr Beattie had ...

    Full story

Innermost Secrets / Innermost Living / Body Clock
Skip Navigation LinksMooncup – Menstrual Cup
Page modified at: 04/01/2010

The Mooncup is a reusable menstrual cup around two inches long and made from soft silicone rubber. It is worn internally like a tampon but collects menstrual fluid rather than absorbing. Unlike tampons the Mooncup is not a disposable product, so you only need to buy one.

The Mooncup will hold 30ml of fluid, which is roughly one third of the average total produced each period. A light seal is formed with your vaginal walls allowing your menstrual fluid to pass into the Mooncup without leakage or odour.

You will probably find that you need to empty your Mooncup less frequently than you currently replace towels or tampons. 


Why is it better for me?

The Mooncup menstrual cup contains no bleaches, deodorisers or absorbency gels. It does not interfere with your healthy vaginal environment, nor has it been associated with toxic shock syndrome. 

The smooth surface of the Mooncup allows the mucus membranes of your vaginal wall to continue their essential cleansing and protective functions.

The Mooncup does not absorb your body's natural defence mechanisms and will not deposit fibres in your vaginal wall. 

The Mooncup will not cause irritation and is suitable for women with sensitive skin, thrush, eczema or allergy. For your safety the Mooncup is made from a special medical grade non-allergic silicone. Silicone is derived from silica which is one of the most abundant minerals on earth. The Mooncup is manufactured in the UK.

Why is it bewtter for the environment?

The motivation behind the Mooncup is the well being of our world. We are careful to ensure that our waste is reused where possible and recycled where reuse is inappropriate.

All leaflets and packaging are produced from materials that are sourced with regard to their having the least impact upon our environment.

The Mooncup storage pouch is manufactured from 100% organic cotton.

How do I clean it?

The Mooncup can be cleaned in the same way as baby equipment: with sterilising fluid, or by boiling for five minutes in an open pan of water. Unlike pads and tampons the Mooncup menstrual cup is reusable, eliminating the need to carry bulky spares. With proper care your Mooncup will last for several years.Imagine the towels and tampons that you will be disposing of in landfill sites during those years!

"I've been using the Mooncup for three years and it has been fantastic. I have a very heavy flow and used to use 2 x super plus tampons at a time, and a pad as well, and I would still be in a mess in an hour for the first 2 days of my period. Apart from saving me a fortune, and not supporting pharmaceutical giants, it is much gentler on your body than tampons. Try it, it is really worth it." 

How much does it cost?

You can order a Mooncup online at  a cost of £19.99 - this includes recycled packaging.  You will probably spend this in six months on disposable feminine hygiene products.  Your Mooncup will last for several years, and you are investing in an ethical product which is concerned with your personal health and the well being of our planet.

How do I order a Mooncup online?

Click on image above to buy online!

How easy is it to use the Mooncup menstrual cup ? 

Correctly inserted, the Mooncup is so comfortable that you will forget it exists. It may take a little practice at first as you need to find the angle and position that is right for you.  Once you have perfected it you will be amazed at how simple the Mooncup is to use. You will need to empty, rinse or wipe and reinsert your Mooncup every four to eight hours depending on your flow. The fluid remains inside the cup, and the process is not messy or uncomfortable.

The Mooncup can safely be used overnight and is great for all sports, swimming and travelling. It can even be used when you are not having a period when water-ski-ing without a wetsuit as it will reuce the risk of water being forced into the vagina which can cause infection.

"I LOVE my Mooncup! I found it quick, convenient and easy to use (I think the trick is definately to aim towards the small of the back when inserting) and comfortable to wear. I'M FREE! I'M FREE! It doesn't leak or smell and I don't go to the loo and then think "damn I should've brought a tampax in with me" or get up in the morning and think "now I must fill my pockets with tampax" if I'm going out! The great thing is, once you've got it in, you've got it with you! Love it! Thanks! More women should know about this... " Sue S

Is it hygienic and safe to use?

Initially you may find the idea of the Mooncup menstrual cup unattractive. Perhaps it is messy, uncomfortable or unhygienic? This is a consistent first reaction to the menstrual cup, and one well worth reconsidering.
Most of us have grown up in an era which offered no alternative to disposable feminine hygiene products and this fact has contributed to the way in which we think about our periods and menstruation.

It is always challenging to experiment with new ideas, particularly those of such a personal nature. The benefits of the menstrual cup however are too great to be ignored.  We offer a friendly and supportive advice service for new Mooncup users. Please contact us if you need any advice.

"I just wanted to give you feedback on the advice you gave me on gettting the mooncup more comfortable. I have trimmed the mooncup stem as you suggested and am placing the cup slightly lower down where the muscles are stronger and I no longer have any problems with it. Thank you. I'm now incredibly pleased with the mooncup, and I've also been very impressed by your customer service! Thanks again."

"I have already got one of your Mooncups (I find it to be wonderful) and I would like to order 3 for my mum and my 2 sisters..."

How do use my Mooncup?

Find a comfortable sitting, standing, squatting or kneeling position. Relax and take your time.

Press the sides of the Mooncup menstrual cup together and then fold in half again.
Hold the folded sides firmly together between thumb and forefinger of one hand. The single curved edge should be away from your palm.

Stay relaxed. With your free hand gently separate the labia and push the curved edge of the folded Mooncup menstrual cup up into the vagina.

Insert the Mooncup menstrual cup fully following the natural angle of your vagina. Aim towards the small of your back, not the top of your head. You do not need to push the Mooncup menstrual cup up high into the vagina, the vaginal muscle will keep it in place.

Once the Mooncup menstrual cup is fully inserted grasp the base of the cup, not the stem, and rotate it once to ensure that it has fully unfolded.

Most women find that the stem is too long. You will need to remove the Mooncup menstrual cup and cut the stem to your own requirements.


It is important to keep your Mooncup clean. Wash it regularly with mild soap and hot and water. It can be cleaned more thoroughly between periods.
Please read the Usage Guide carefully before using your Mooncup menstrual cup for the first time.

Where can I get help and advice about using my Mooncup?

Contact the Mooncup Nurse Advisor on Mooncup Ltd, Dolphin House, 40 Arundel Place, Brighton BN2 1GD, UKTelephone: +44 (0) 1273 673845

The Mooncup is available in two sizes

Size A measures 46mm in diameter and 50mm in length and is recommended for women who have given birth vaginally or who have had a caesarean section and are aged 30 or above.

Size B measures 43 mm in diameter and 50mm in length and is recommended for women who have not given birth or who have had a caesarean section and are aged below 30.

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

Please ensure that you select the correct size. For hygiene reasons we cannot exchange Mooncups once they have been dispatched.
Please note that women over the age of 30 years old are increasingly likely to need the size A regardless of giving birth. This is because the tone of vaginal and pelvic floor muscles naturally reduces with age but to varying degrees in different women. Some activities will maintain tone, such as yoga, pilates, dance, so if you are advanced in any these, or similar activities take this into consideration when choosing which size you need. Corrective surgery to the vagina will also have implications.

History of menstrual cups

Menstrual cups were developed in the 1930s and went on commercial sale at around the same time as the first tampon. In that early post-Victorian era it was not considered ‘proper’ for women to touch their vaginal area. The manufacturers of the tampon overcame this obstacle by providing those disposable applicators that can still be found floating in our toilet bowls today! Menstrual cups require a ‘hands on’ approach and were only purchased by the most liberal minded woman in those days.

Commercially, the tampon is a more viable product, as customers need to repurchase month after month In contrast menstrual cup manufacturers do not expect to make repeat sales to satisfied customers, only to their friends and relations! Sadly such intimate matters were not discussed in polite company back in the 1930s. Sales of tampons soared and massive advertising campaigns were launched. Disposable feminine hygiene products soon became established necessities in modern western society.

Menstrual cups and washable sanitary towels really began to gain popularity during the 1980s as women began searching for eco-friendly (and cheaper) alternatives to disposable products. Until the Mooncup became available menstrual cups were made from latex, which is derived from the sap of the gum tree.

Latex rubber is a known allergen. Reactions can vary from very mild irritation, itchiness and swelling to pins and needles and loss of sensation. Latex is also unsuitable for vegans as casein, a milk protein, is used in the curing process. The Mooncup is the world’s first menstrual cup to be manufactured from medical grade silicone, a safer, softer and more attractive material. Silicone is derived from silica, found in sandstone and quartz, one of the most abundant resources on our planet. The Mooncup is registered with the Vegan Society.

Ethical and environmentally responsible?

Mooncup's bankers were selected on the basis of their ethical investment policies. In December 2004 the Ethical Company Organisation (publishers of the Good Shopping Guide) certified Mooncup Ltd an Ethical Company. This recognises a commitment to a people and animal friendly approach, efforts with regard to environmental issues, responsible marketing and general caring nature.


The Mooncup was voted Best New Product by a team of independent retailers at the Natural Trade Show in March 2003.



The Vegetarian Society approved the Mooncup in May 2004 and the



The  Vegan Society members voted it the Best Environmentally Friendly Product in November 2004.




 Awarded “best buy” for all sanitary protection by Ethical Consumer magazine in 2007