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Half of the population experience periods, yet it remains as a social taboo. As a result, even women don’t know enough about menstruation.


By tracking menstrual cycle with “Cycle of red”, you can see how long your cycle is, notice the changes and better monitor your health. The number of cards was set to 40 since menstrual cycles can last to 40 days.


To track, simply turn one card over each day and flip it to red on period days. Place the extra cards that don’t fit in your cycle in the back slot and adjust when cycle length changes.


With a simple, neutral appearance that can be displayed proudly on your desk, it is ready to spark more unbiased and educational conversation about periods among all ages and genders.

The beginning of a cycle

The end of the period

The beginning of the next cycle


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