Austin Startup Offers Mail-In Gut Microbiome Tests
Mail-in gut test from Austin startup Tiny Health lets customers collect a stool swab at home and receive a microbiome report without a doctor visit.
Tiny Health, a company based in Austin, Texas, offers gut tests that are mailed directly to customers, allowing them to monitor the microorganisms living in their digestive systems. The lab analysis translates the swab into a full report that identifies the composition of the 38 trillion health-related microbes inhabiting the human gut.
In the past, analyzing gut health required an in-person doctor visit and a cumbersome stool-collection process. Tiny Health’s home-based kit and prepaid mailer for laboratory analysis have removed those obstacles. Customers simply send in swabs of their stool, after which the lab produces a detailed report on the gut microbiome. This detailed report not only lists the organisms present but also contextualizes how the 38 trillion microbes may influence health outcomes.
Gut Health and Microbiome
The human gut contains many beneficial bacteria that break down food and nutrients, creating metabolites and enzymes that support overall health. Gut health is directly connected to our immune system. It is key for overall well-being and is also tied to chronic conditions if you don’t take care of it. Conventional medical education and public discourse often miss this. Athletic teams and professional athletes come to Tiny Health to optimize performance and fitness because they travel a lot and are under stress from training and recovery.
Collection and Analysis Process
The company sends each customer a kit that contains a small, prepaid USPS shipping box and a swab. Customers collect their stool, swab it, and mail the sample to Tiny Health for analysis. The company also offers a clinical-grade test that uses a more involved collection method and includes two-day shipping; this option is available only to practitioners who hold certain licenses.
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Launch and Funding
Tiny Health was launched in 2020 by Cheryl Sew Hoy, who started the venture with $50,000 of her own money. She spent the first two years immersing herself in microbiome research, taking PhD-level classes online, and assembling an advisory board that includes mentors from institutions such as the Mayo Clinic and Johns Hopkins. This deep dive occurred before the public launch in 2022, ensuring the platform was built on solid scientific grounding.
In 2021, she raised $4.5 million in seed funding and hired the first engineer and a full-time scientist. The company has since closed a Series B funding round that brought in $33 million. Prior to Tiny Health, Sew Hoy founded a digital wallet and daily-deals startup in New York in 2010, which she later sold to Walmart Labs in 2013.
Tiny Health acquires most of its customers through advertising. Roughly 50% of new customers come from Meta Ads and Google Search. The firm is also adapting to emerging technologies such as LLMs and genAI for greater visibility. In addition, it uses email marketing, Instagram influencers, and trade shows to attract new users. In addition to consumer outreach, Tiny Health maintains a B2B component that partners directly with healthcare practitioners to integrate testing into clinical workflows.
Potential customers can purchase a Tiny Health test or contact the company through its website, TinyHealth.com. They may also reach out to Cheryl Sew Hoy directly on LinkedIn for more information.
