Magtein (magnesium L-threonate) is a unique, patented form of magnesium developed to support efficient magnesium delivery to the brain. Magtein has been shown in clinical studies to support brain health, healthy cognitive aging, sleep quality, next-day functioning, mood, heart rate variability, and improved response time.*
This collaboration builds on Arnold’s Pump Club’s long-standing interest in Magtein (magnesium L-threonate) and Magtein’s growing body of published research, including a recently published clinical trial in Frontiers in Nutrition.[1] Through the partnership, Magtein and Arnold’s Pump Club will create evidence-led consumer education designed to help audiences better understand the science behind magnesium L-threonate, delivered in the Pump Club’s approachable “make science make sense” style.
Adam Bornstein, co-founder of Arnold’s Pump Club, said, “Longevity is a core focus for our community, and that includes protecting what matters most as we age, our brains. Magnesium is one of the nutrients we get asked about constantly, but the form and the science matter. Magtein stands out because it’s a patented form of magnesium L-threonate backed by human research, with benefits people care about like brain health, healthy cognitive aging, sleep quality, next-day functioning, stress support and mood. Partnering with Magtein lets us do what we do best, make the science make sense, and give our readers and listeners clear, useful guidance they can put into practice.” Jennifer Gu, CEO at Magtein, said, “We’re truly excited to partner with Arnold’s Pump Club because they share our belief that wellness should be built on science you can trust. Arnold and the Pump Club team have built a rare community grounded in discipline, scientific curiosity, and practical guidance that stands up to real scrutiny, and Magtein was developed with that same uncompromising standard in mind. Together, we’re looking forward to helping people understand the wide portfolio of Magtein science in a clear, approachable way – especially around healthy cognitive aging, mood and stress support, and sleep quality – that supports long-term brain health.”
[1] Lopresti AL, Smith SJ. The effects of magnesium L‑threonate (Magtein®) on cognitive performance and sleep quality in adults: a randomised, double‑blind, placebo‑controlled trial. Front Nutr. 2025;12:1729164. doi:10.3389/fnut.2025.1729164
Regulatory & Compliance Notice This press release is intended for informational purposes only. Magtein is a dietary supplement ingredient. Statements in this release have not been evaluated by the U.S. Food and Drug Administration. In the European Union, no health claims for magnesium L-threonate beyond authorized nutrition claims have been approved by the European Food Safety Authority (EFSA). This product is not intended to diagnose, treat, cure, or prevent any disease
