what's a menstrual cup

What's a Menstrual Cup?

The menstrual cycle is a vital sign and can be an indication of the general state of a woman's health. However, since the beginning of humanity, menstruation has been surrounded by taboos that still persist in our society.

Luckily, in recent years, the tendency to consider menstruation as a taboo is disappearing, thanks to menstrual activism. For example, some products, such as the menstrual cup, help you get to know your menstruation better and be more in tune with your body, which has made more people feel empowered with their periods.

whats a menstrual cup

Everything You Want To Know About the Menstrual Cup

When was the menstrual cup invented?

In the 1930s, the American Leona W. Chalmers filed a patent for the menstrual cup: a container made of rubber. Unfortunately, the outbreak of the Second World War and the rubber shortage forced production to close.

Likewise, and although these cups were still being marketed, it was difficult to convince women in a society where sexuality and periods were a taboo.

From here on, there was a long silence on the topic. Cups continued to be patented in 1935, 1937, and 1950 until production was discontinued in 1963. It was not until 1987 when the first latex menstrual cup, reusable and in two sizes, appeared on the market. Its success marked the beginning of the journey that would lead us to the year 2000, when the first silicone menstrual cup was manufactured.

Read more about Chalmers and the history of the menstrual cup

Period cup with money back guarantee

What does a menstrual cup look like?

It looks like this:

how do period cups work

How do menstrual cups work?

A menstrual cup is worn inside the vagina, where it collects your period blood rather than absorbing it as a tampon would.

The Ruby Cup is a premium-quality menstrual cup made of 100% medical grade silicone making it soft and easy to use. 

It has 3x the capacity of a tampon and can be worn for up to 8 hours at a time, giving you unparalleled freedom compared with traditional period products. 

The silicone material is hypoallergenic, non-absorbent and contains no harmful additives or chemicals. You can reuse a Ruby Cup for up to ten years and save 10kg of plastic from disposable products from ending up in landfills.

For a full explanation of how to use a menstrual cup, check out this ultimate guide for beginners.

Menstrual cup beginners guide


What are the advantages of the menstrual cup?

The Ruby Cup is comfortable, healthy, reusable, economical, ecological and suitable for people with periods of all ages. But first of all it works and is a life changer!

“A real life changer, improver and care-giver to yourself. 
One of the best investments I did in my life this far. 
Too bad I didn’t have access to it earlier.  
Thank you!” - Ruby Cup User


whats a period cup



Although the initial price is more expensive, the cost of one Ruby Cup is equal to the cost of 5-6 months of traditional, disposable period products. 

A Ruby Cup lasts 10 years, but for that, you must take care of it, clean it, and keep it well stored.


The truth is that not all of us can use sanitary pads or tampons.

One of the advantages of the menstrual cup is its comfort, it can be used during the entire period, even at night. And if you are going to exercise, nothing happens, swimming. gymnastics, running, CrossFit, the cup will always keep everything in place.

Related post: The Best Menstrual Cup for a Tilted Uterus & How to Use It 

Help the environment

As we already told you, it is the most sustainable option of menstrual health products. 

Due to the material, it is made of, it can be reused and washed without a problem.

Cups are less wasteful for the environment because it is acquired once every 10 years. 

Let’s do the math again: 25 tampons or menstrual pads each period x 12 months of the year x 10 years of the life of the menstrual cup: 3,000 sanitary pads or tampons that would not go to the trash.


The Ruby Cup can be worn for 8 hours. You can take it wherever you want. Going camping or visiting a festival? Or even if you're just planning a night out, you do not have to worry about using Ruby Cup.

Related post: How to clean a menstrual cup in a public bathroom


How big is a Ruby Cup ?

Ruby Cup’s menstrual cup measurements are:

  • Small (our smallest menstrual cup) is 65mm high and 40mm wide.
  • Medium (our largest menstrual cup) is 68mm high and 45 mm wide.

  • menstrual cup sizing guide


    Remember that everybody’s body is different so if you are wondering which menstrual cup is right for you we kindly invite you to read our sizing guide or take our sizing quiz.


    What are you waiting for? Go and get yours.

    - And remember our 120-day money-back guarantee on all cups. If it's not your right fit, exchange sizes or get your money back for up to 120 days.

    Ruby Cup buy 1 give 1


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