On She Built It®, Brianna Bitton shares the founding story of O Positiv—a women's health company she built with her brother after years of missing work due to debilitating PMS symptoms she couldn't even speak openly about. What started as the first-ever PMS gummy vitamin has grown into a 30-SKU brand with Amazon's #1 vaginal probiotic and a full line supporting women from their first period through menopause.

Brianna opens up about the gaps she saw in the women's health market, what it took to build trust in a historically taboo space, how community and authentic storytelling drove their growth, and why she believes there's never a failure—only a lesson. This conversation is equal parts inspiring and practical for any founder building in a category the world wasn't ready to talk about.

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