We’re here to empower you to
create a solid foundation
for optimal thyroid health.



As a founder, my priority was to transform the experience of managing a lifelong, chronic condition into something empowering and engaging. I strongly believe that caring for thyroid health, which demands daily attention, should never feel dull or clinical—it should be beautiful and seamless
For co-founders and partners, Marie Peinert and Raphael Reuben, challenging the status quo has become their new normal.
In November 2020, they learned that Marie suffered from an autoimmune thyroid condition. Like most, they were discouraged when they sought help from traditional healthcare channels. They were met with long wait times (two and half years till diagnosis), resistance to Marie’s self-reporting, a siloed, reactive approach, and solutions singularly focused on symptom reduction via medication in lieu of preventative, sustainable, whole-body lifestyle interventions.
As Marie and Raphael dug deeper into autoimmunity, they found they were not alone in their struggle for forward-thinking care. So, after years of connecting with the brightest minds in the autoimmune community, nutritionists, and endocrinologists, they decided to create something better — with Duyu Care — a dynamic, innovative, and convenient health and wellness partner that exists to help those living with and managing chronic conditions daily and to provide best-in-class preventative care and supplementation for everyone else.
Self-healers, welcome to Duyu.

Helping you
Nutritional Supplementation is the most impactful when used routinely. Subscribing to Duyu ensures your 30-day supply of Thyroid Hero® reaches you without delay, so you don’t have to miss a day of benefits.