Pioneering evidence-based longevity care

Circulate Health was founded on a simple belief: that advanced, science-based care should be safe, consistent, and accessible.

Our Mission 

Circulate Health is redefining how longevity care is delivered and experienced. Today, we enable clinics to deliver TPE to patients seeking science-based ways to extend healthspan. But our mission doesn’t stop there. We’re committed to advancing longevity science, expanding research, exploring new indications, and building the evidence base that will define the future of clinical longevity care.

Our Team

Spanning diverse backgrounds and disciplines, the Circulate team is passionate about enabling successful outcomes for partners and patients.

Headshot of Brad Younggren

Brad Younggren MD

Co-Founder, CEO

Headshot of Eric Verdin

Eric Verdin MD, PhD

Co-Founder, CEO Buck Institute

Headshot of Robbie Schweitzer

Robbie Schwietzer

Chief Operating Officer

Headshot of Amin Neghabat

Amin Neghabat

Chief Business Officer

Headshot of Jenna Walcott

Jenna Walcott

Chief Marketing Officer  

Headshot of Chrissy Anderson

Chrissy Anderson

Chief Nursing Officer

Headshot of Bob Weinstein

Bob Weinstein MD

Vice President Apheresis

Headshot of Christina Ristovski

Christina Ristovski

Director Clinic Success

Headshot of Stella Yuksel

Stella Yuksel

Director of Bioengineering

Headshot of Ethan Diamond

Ethan Diamond

Head of Product

Scientific Advisors

Our work is guided by leading researchers and clinicians at the forefront of longevity science.

Headshot of David Furman

David Furman PhD

Advisor,
Director Buck Institute

Headshot of Alex Aravanis

Alex Aravanis MD PhD

Advisor,
CEO Moonwalk Biosciences

Headshot of Matt Kaeberlein

Matt Kaeberlein PhD

Advisor,
CEO Optispan

Headshot of Matthew Campen

Matthew Campen PhD

Scientific Advisory Board

Our Journey

The science behind Circulate started with a question: what if targeting factors in the blood could influence how we age? The Circulate Trial answered it, becoming the first human study to demonstrate a measurable reduction in biological age following TPE.

Building on two decades of research, the team focused on developing safe, effective treatments grounded in rigorous scientific methods. The apheresis device used for TPE is FDA-cleared, and the American Society for Apheresis has published clinical practice guidelines classifying conditions based on the strength of evidence and effectiveness of TPE.

The Circulate Trial

Circulate conducted the first-of-its-kind, single-blind human clinical trial to evaluate how TPE, with and without IVIG, may influence biological age and immune markers associated with longevity. This landmark, peer-reviewed study, published in Aging Cell, showed an average 2.6-year reduction in biological age after six sessions.

See the Full Body of Evidence

2.6 years: average biological age reduction

2.6 years: average biological age reduction after six TPE sessions.*

*Source: Aging Cell (2025). Study by Fuentealba et al.

In the Press

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