OIISA
OIISA (524 in Korean), a femtech brand from South Korea, offers sanitary-related products that promise comfort and zero discomfort throughout the 5 days and 24 hours of menstruation.
The ergonomic thinness and shape won the iF Design Award, the world's most prestigious design award. It is supervised by female experts from Seoul National University and other institutions, and the developers directly test the wearability.
The menstrual disc "524 disc" flexibly changes its shape according to the movement of the vaginal muscles. It minimizes pressure and discomfort when moving, and allows you to forget about menstruation and enjoy activities such as exercise.
It's easy to use. Fold it in half and insert it into the vagina. To remove it, just pull the hook. It can be used for up to 12 hours and can be reused simply by washing it with water, making it an economical and compact sanitary product.