Function Acquires Supplement Watchdog SuppCo

SuppCo, an independent testing platform that’s called out supplement companies for failing label claims, is now part of Function, a digital health unicorn recently valued at $2.5 billion

Celebrity-backed digital health platform Function Health has acquired SuppCo, the independent testing platform and app that’s spent the past year serving as a consumer watchdog in some of the supplement industry’s most popular categories.

The acquisition, announced Tuesday, brings SuppCo’s consumer app, TrustScore rating system and Tested by SuppCo certification program under Function’s telehealth umbrella. Deal terms weren’t disclosed.

Co-founded by Dr. Mark Hyman, a popular name in the longevity space, Function raised an oversubscribed $298 million Series B round at a $2.5 billion valuation last fall.

Though Function didn’t lay out exact plans, it noted the SuppCo deal marks its next step in building toward an AI health operating system, now with an independent action layer that combines its speciality (continuous tracking) with supplements that make a meaningful impact on health.

SuppCo said it doesn’t directly profit from supplement sales and helps consumers build the right stack by matching them with brands its testing has vetted for quality and label accuracy. The platform has rated more than 35,000 products and analyzed over 500,000 user routines, and has not exactly made friends in the process. 

A June 2025 report on creatine gummies was particularly damning, finding that four of six Amazon bestsellers contained little to no creatine per serving, with two containing none at all. An NAD+ analysis, published shortly after, found that five of 10 popular products failed to meet label claims, with some containing almost no detectable NAD+.

“Joining Function pairs that independence with the one thing that’s always been missing: a more comprehensive view of your biological data to understand how supplements are actually working for you,” SuppCo co-founder and CEO Steve Martocci said. “That’s how we close the loop on efficacy and help people take control of their health.”

SuppCo will continue to support its existing platform and users, Athletech News has learned.

The latest deal adds to Function’s own stack — of acquisitions.

The telehealth platform expanded beyond lab testing last year, acquiring AI imaging startup Ezra and adding a $499 22-minute full-body MRI meant to catch cancers and other conditions earlier and more efficiently. Last month, it acquired mobile healthcare company Getlabs, which sends licensed phlebotomists directly to members for blood draws.

There’s also the larger backdrop where Function and its competitors are racing to own the consumer health stack, as the blood-testing gold rush is officially underway.

Hims & Hers launched its Labs offering this year with access to 120-plus biomarker tests starting at $199 a year, and Superpower, Hone Health and Whoop have all rolled out their own personalized biomarker testing platforms.