About Semaine
Born from love. Backed by biology.
Semaine began with Lar's health journey. Years of dismissed symptoms and incomplete answers, and a husband with the scientific training to find what actually worked.
Our storyTwin sisters, one diagnosis
Cath and Lar share DNA and an endometriosis diagnosis. What they did not share was a clear answer, so they set out to build one, for themselves and for the women who kept hearing their symptoms were normal.
Here is what the research actually shows
We run clinical studies on our formulas with an independent, third-party lab. Real evidence, not just our word for it.
See our clinical studiesThe Semaine difference
-
2020
Running clinical studies on our formulations since day one.
-
100%
Every supplement is third-party tested for quality and purity.
-
80%
Of our team are women, and half of us live with chronic health conditions.
Root-level, not surface-level.
Women's health isn't a few hormones, it's a whole system. We work at the root of what you're feeling, not just the surface symptoms.
Why we started Semaine
Lar spent years looking for answers to debilitating periods and endometriosis. Matt, a bioengineer, brought the scientific training to find what worked: a plant-based formula that led to Lar's first pain-free period. They built Semaine so more women could feel better too.
Meet the founders
Meet our medical advisory board
A team of physicians and clinicians who guide our science and the education we share.
Meet the board