30% of this week's sales donated to the Black Women's Health Imperative

Getting started

Your perfect period plan


Choose how often you need Semaine based on how often you get your period: 4 weeks? 5 weeks? 8 weeks? You choose on the shop page.

Semaine ships to you each period without you having to lift a finger. We’ll send you a reminder email before we ship in case you need to rush or skip your order.

Open your bottle of Semaine 2 days before your period starts. Take 2 pills in the morning and 2 pills in the evening for 7 days.

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The science behind Semaine

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Why target inflammation?

Our ingredients