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COSI x Aunt Flow

COSI Connects the Community to Science and Period Supplies

Stay in the flow — we’ll send you period positivity + timely updates on the menstrual movement.

claire coder,founder + ceo

claire coder,
founder + ceo

Hi! I’m Claire. I founded Aunt Flow after getting my period in public without the supplies needed.

At 18 years old, I dedicated my life to developing a solution to ensure businesses and schools could sustainably provide quality period products, for free, in bathrooms. Our products are made with organic cotton and we are constantly working to reduce our environmental impact! Since 2021, we've donated over 5 MILLION period products to menstruators in need. I call this people helping people. PERIOD.®

EN / FR