THORNE EXPANDS NSF CERTIFIED FOR SPORT® PORTFOLIO REINFORCING COMMITMENT TO INDEPENDENT, THIRD-PARTY TESTING

Gold-standard certification extends independent certification across supplements for sports performance and everyday wellness

SUMMERVILLE, S.C., Nov. 5, 2026 /PRNewswire/ -- Thorne, the leader in science-backed health and wellness solutions, today announced that it has expanded its NSF Certified for Sport^® portfolio to more than 60 products, one of the largest lines in the industry. Newly certified products include Protein Optimizer and Vitamin B12 underscoring Thorne's continued investment in independent third-party testing.

Recognized as the gold standard in third-party supplement certification, NSF Certified for Sport^® combines independent product testing, formulation and label review, manufacturing facility audits, and ongoing monitoring. The program helps verify that product contents match label claims, checks for unsafe levels of contaminants, and tests finished product lots for substances banned by major athletic organizations.

"Trust is earned through a consistent commitment to quality and the rigor to demonstrate it," said Amy Caplette, SVP of Quality and Regulatory Affairs at Thorne. "At Thorne, that commitment extends from ingredient selection and manufacturing to finished product testing. Independent, third-party certification adds another layer of accountability, giving athletes, healthcare practitioners, and consumers further assurance in the quality of our products."

While especially valuable for competitive athletes subject to banned-substance testing, NSF Certified for Sport^® also helps consumers and healthcare practitioners make informed supplement choices through independent verification.

"Whether you're an athlete, a weekend warrior or someone who wants added confidence in the supplements they buy, Thorne offers more than 60 NSF Certified for Sport^® products that meet our rigorous standards for safety and label accuracy," said Chris Kirwin, Global Head of Wellness at NSF. "Trust is our science, and Thorne's continued expansion of its certified portfolio demonstrates a shared commitment to transparency and safety by giving more people access to independently-certified products."

The expansion builds on certifications earned earlier this year by Basic Prenatal and three products formulated by and for women: Perimenopause Complete, Women's Libido Boost, and Radiant Skin Complex, each of which launched with NSF Certified for Sport^® certification.

To explore Thorne's NSF Certified for Sport^® portfolio, visit thorne.com/nsf-certified-for-sport. Certified products and tested lots can also be verified through NSF's online directory.

About Thorne^®:

Thorne is the leader in science-backed health and wellness solutions built to connect the science of performance with the science of people. As the top recommended clinical brand by health-care practitioners, Thorne offers a comprehensive range of nutritional supplements and innovative technology tools including Taia™ – Thorne's AI-powered wellness advisor – empowering individuals to take control of their health and wellness journey with confidence. Founded in 1984, Thorne develops products with high-quality ingredients, guided by clinical research and an in-house team of doctors, researchers, and scientists to ensure every formula meets rigorous standards for purity, potency, and efficacy. Thorne maintains a vertically integrated model, setting the industry standard for supplement manufacturing at its own facility in South Carolina. Trusted by tens of thousands of health-care professionals, thousands of professional athletes, 100+ professional sports teams and multiple U.S. National Teams, and over seven million consumers, Thorne is a trusted partner bringing scientific rigor to everyday health and wellness. For more information, visit Thorne.com.

About NSF:

For more than 80 years, NSF has helped businesses and consumers navigate complexity with confidence through science-driven standards, rigorous testing, certification, research and advisory services across food, water and wellness. Guided by its purpose to protect and advance public health, NSF works to strengthen trust in the products, systems and services people rely on every day. From scientific expertise and standards development to testing and certification, NSF helps organizations raise the bar for quality, safety, transparency and compliance around the world. Learn more at nsf.org.

SOURCE Thorne