We don't think anyone should be restrained by his body. We believe that menstrual products should not contain harmful chemicals or absorb natural body secretions, which can lead to infections. Menstruation should not cause major pollution. And they should never, ever be a source of shame. Make products for and with the people who use them, put sustainability at the centre, engage in transparent communication and give cups to those who need them, all in an effort to de-stigmatize the rules.