Why is Semaine for 7 Days?

Your immune system responds to your natural cycle. It's suppressed during ovulation and then comes roaring back when your period is about to start (check out our in-depth explainer here). As your immune systems comes back, it also increases inflammation. People with more period pain tend to have a stronger immune response (i.e. more inflammation). Also, more inflammation has been linked to not just worse pain, but also to worse PMS symptoms. This is why Semaine is for the week of your period – because it gives your body what it needs, when it needs it.

Conscientious, minimalist design that fits into your life is really important to us. Developing new routines to take extra pills all month long is hard, and we don’t want you to have to think about pills when you don’t need to. Semaine fits into your life, to help you with pain when you need it.