What is a menstrual cup?

Menstrual cup is a reusable menstrual product made from medical grade silicone. True to its name, it is a cup which is placed inside the vagina to collect menstrual flow. The first menstrual cup was designed in the 19th century, so it is not new invention by any means. Of the several cup brands available on the market today, the product development of Nomai is based on solid medical expertise.

This is how the Nomai menstrual cup was created

The key guiding principles in the design of Nomai included an in-depth knowledge of the female anatomy and the physiology of the menstrual period. The cup is made from extremely soft silicone, which allows it to position itself naturally inside the vagina and adapt perfectly to the individual anatomy of the user. During the development, the Nomai menstrual cup was tested by an extensive group of Finnish women of varying ages. A menstrual cup should be discreet, reliable, easy to use, and extremely safe. Nomai is all these things.

Nomai – champion among menstrual cups

Nomai was designed by gynecologist Nonna Heiskanen. The cup is made in Finland using soft, medical grade silicone, and its design is innovative. The softness of the cup, the narrow bottom section, and the smooth surface make it discreet to use and ensure that it does not put pressure on the bladder or irritate the sensitive mucous membranes of the vagina. The menstrual cup is also easy to clean due to the smooth surface and the large air holes. The stem of the cup and the reinforced grip at the base make the cup even more comfortable to use.

Three sizes, three colors

The red Nomai S has a volume of 23 ml and it is particularly suitable for new cup users and those with lighter flow. The volume of the clear Nomai M is 32 ml, and it is a great choice for those with moderate flow. The black size L Nomai has a volume of 41 ml. The larger model is suitable for both moderate and heavy flow.

What makes the Nomai menstrual cup better than other options?

  1. Menstrual cup is comfortable and discreet. When the menstrual cup is positioned correctly, you will hardly feel a thing. Using a menstrual cup allows you to lead a full life, without limitations, even during the menstrual period.
  2. Menstrual cup is reliable. The cup will collect menstrual fluid for up to 12 hours before filling up. This means that you will not have to sacrifice your comfort when going swimming or during long flights, for example.
  3. Menstrual cup is hygienic. The medical grade silicone prevents bacterial growth, does not dry the mucous membranes, and does not contain irritating chemicals which can be found in tampons and pads.
  4. Menstrual cup saves money. Over the course of her life, the average woman spends 5,000 euros on menstrual products. The cup is an investment that pays for itself in short time.
  5. Menstrual cup is ecological. Disposable menstrual products produce significant amounts of waste that decomposes slowly and contains plastics. You can reduce the amount of waste you produce during your lifetime by more than 100 kilos if you replace pads and tampons with a menstrual cup. Thus, when choosing the menstrual cup, you are doing a big favor to both yourself and the earth.

Frequently asked questions


The Nomai menstrual cup is made from medical grade silicone that does not cause dryness in the mucous membranes or provide a suitable medium for bacteria. The menstrual fluid is collected inside the cup, keeping it from contact with the mucous membranes. You do not have to empty out the cup every time you go to the toilet, and it is often enough to empty the cup once every 12 hours. The Nomai menstrual cups are available in three different sizes, which hold 23–41 ml of menstrual fluid depending on the size. A menstrual cup allows you to engage in various sports, such as swimming, more freely than you could with a tampon.

Tampons are made from cotton or rayon. Tampon is made from an absorbent material that comes into direct contact with the mucous membranes of the vagina. Due to its absorbency, a tampon can also cause dryness of the mucous membranes as it absorbs menstrual fluid. In this case, the menstrual fluid also comes into contact with the mucous membranes, thus providing a medium for bacteria. This also makes unpleasant smells more common with tampons compared to a menstrual cup. Tampons also have to be replaced every time you go to the toilet.


Yes, you can! There is no age limit to using a menstrual cup. If you have previously used tampons, it is easier to learn how to use a menstrual cup. With practice, anyone can learn to use a menstrual cup. If you have not had sexual intercourse, choose the smallest size at first (size S), as it is the most comfortable option for practicing the use of a menstrual cup. Where necessary, you can apply water-based personal lubricant on the surface of the cup or moisten the cup with water.


You can use a menstrual cup with an IUD. Please remember to depressurize the cup before removing it. The menstrual cup is positioned below the external orifice of the uterus inside the vagina and does not usually reach the external orifice of the uterus or the IUD strings. Please discuss the matter with your gynecologist and ask them to check that the strings of your IUD are not too long. If the strings become longer, please contact your gynecologist to have them check that the IUD is positioned correctly.


Before the first time you use the cup, boil it for 10 minutes in a pan with enough water to allow the cup to float freely. You should also boil the menstrual cup for 10 minutes after each menstrual period before placing the cup inside the storage pouch. Air dry the cup properly before storing it.

Some women have two cups that they alternate between during menstrual periods. When one cup is in use, you can clean to other one for use by boiling it, for example. This allows you to have a sterilized cup at hand when you empty the menstrual cup.

When you remove the cup, empty it into the toilet or sink and rinse it. We recommend first rinsing the cup with cold water as this prevents staining. You can also rinse the cup using a mild, unscented, and oil-free soap designed for intimate hygiene with a pH value of 3.5–5.5, which corresponds to the conditions inside the vagina.

Silicone is a porous material that can absorb oils, odors, and colors from soap, for example. These substances may create a film on the surface of the cup, which may cause the cup to smell or irritate the mucous membranes.

If you do not have access to a sink, you can also wipe the cup with a feminine wipe. During cleaning, check that the air holes at the top of the cup are fully clear and clean.

Boil the cup for at least 10 minutes before and after the menstrual period.