Yuuki offers two sizes. One for women who have already given birth and one for women under 28 years of age who have not yet given birth. The Yuuki cups come in two sizes: No. 1 - small and No. 2 - big. The difference between the small and big cups is one of the biggest differences among those offered by cup manufacturers.

You can find the sizes on our blog .

Most manufacturers state ten years. Theoretically, it can last till the end of one’s life because it is made of the same type of silicone as that implanted during surgery. It is up to you whether to purchase a new cup. We provide a two-year warranty on the Yuuki cup.

It depends on your period. The intensity of every woman’s menstrual flow varies. If your menstruation is average to heavy, you should empty the cup every 3 to 10 hours. Some women with very low menstruation may even go 12 hours before emptying the cup.

On heavier menstruation days, you may have to empty your cup more often. If you have tried already the big cup and have seen that you have to empty it every three hours, you have an extremely heavy period. That need not be a problem but you should discuss it with your doctor. There are means of controlling such heavy menstruation.

Never insert the cup right up. The vagina is angled toward the rectum, so incline the cup in that direction. To check whether it fits tightly, grasp the stem and try to turn the cup or run your finger over the rim to check that it is oval in shape.

If you are able to turn the cup, it does not fit tightly. Try to move it carefully up and down. A little air should enter to seal the cup.

It might happen that you’ll be somewhere where you can’t boil the cup in a normal saucepan. In this case we recommend using our sterilization box, which is used to store the cup during your menstrual cycle and also to sterilize the cup in a microwave. We certainly do not recommend using any chemicals (Savo, peroxide).