Magtein^® features on Schwarzenegger’s Instagram

CITY OF INDUSTRY, Calif., 29^th September 2026 – Science-backed Magtein^® magnesium L-threonate has been showcased on Arnold Schwarzenegger’s official Instagram account.

Magtein is the patented, proprietary form of magnesium that supports healthy magnesium levels in the brain by facilitating delivery across the blood–brain barrier. In a range of studies, including human clinical trials, it has been linked with improvements in brain health, cognitive vitality, and sleep quality.

This research base helped attract the interest of Arnold’s Pump Club – Schwarzenegger’s global health and fitness community, which formed an official partnership with Magtein last year. Today, the unique magnesium form features on @schwarzenegger – the star’s official Instagram account, which has 26.7 million followers. The science-forward carousel makes the case for Magtein — proof that strength isn't the only thing worth training smarter.

Rory Lipsky, EVP, Magtein (ThreoTech, LLC) said: “It’s an absolute honor to have Magtein platformed like this. We’re obviously delighted that our patented magnesium is being placed in front of an engaged fitness and wellness audience of millions. But even more importantly, it’s a reflection of the scientific evidence that we’ve built up over the past decade. The Pump Club is built on a commitment to science and transparency, and only backs products that stand up to scrutiny, so this is a really meaningful endorsement for Magtein.”

To date, five peer-reviewed, randomized, double-blind, placebo-controlled human trials exploring Magtein’s benefits have been published. ​ At SupplySide Global (Wednesday, October 28, 2026, in Las Vegas) ThreoTech, LLC, the commercial team behind Magtein, will host a breakfast briefing on an upcoming clinical study examining its benefits in athletes.

In addition to holding GRAS approval in the US, Magtein is approved as safe for use in consumer products in Canada, Japan, Turkey, India and Thailand. Since November 2024, it has also been available in the EU, and it was authorized as a novel food in the UK this year.

View the Instagram post here.

About Magtein

Magtein is the patented, proprietary form of magnesium L-threonate, developed by researchers in 2010 to help address the challenge of increasing magnesium levels in the brain to healthy levels. Magtein supports brain health, healthy cognitive aging, reaction time, sleep quality, and next-day functioning, based on findings from multiple human clinical studies.^* Today, Magtein is used in over 500 products by partner brands globally and clinical studies are ongoing. Magtein is stable, tasteless, odorless, colorless, and water-soluble, with applicability across capsules and tablets, as well as gels, powders, and liquids.

About ThreoTech, LLC

ThreoTech, LLC is an innovative manufacturing, marketing, and research company. ThreoTech, LLC is the exclusive global ingredient supplier and patent licensee for Magtein®, ensuring its quality and authenticity.

About Arnold’s Pump Club

Arnold’s Pump Club is Arnold Schwarzenegger’s official email newsletter and daily podcast delivering concise wellness guidance and motivation to help people live healthier lives.

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.

Media Contact

Angela Kelly, Sr. Manager, Marketing & Communications
​a.kelly@threotech.com