Better periods are just a click away
Semaine is your period vitamin: formulated with 9 super-powered plant extracts and minerals that lower the inflammation in your body when you need it the most. Best of all, it arrives right to your door exactly when you need it.

What Semaine Users Are Saying

Your most powerful period tool
• Lessens pain naturally
• Decreases bloating
• Supports your body’s ability to heal
• 100% plant-based and vegan
• Just for the week of your period
Our 9 essential ingredients
Every ingredient we put in Semaine has been rigorously researched and sourced. Semaine isn’t just soy-free, hormone-free, plant-based, and non-addictive—it is also maximally absorbed by your body. Semaine’s clinically studied ingredients have been shown to help reduce period pain, prevent bloating, reduce stress, and help you sleep better.


The science behind Semaine
We believe in wellness, and we also believe in the power of science to help us have our healthiest periods. Semaine was formulated by a research scientist with a passion for understanding inflammation at a molecular level. Pain is personal and complex. Semaine’s formulation is backed by in-depth research that recognizes that.
Want to geek out about period science with us? Head over to our blog where the Phd’s and doctors behind Semaine post about what’s happening to your body on your period.