Niagen Bioscience, Inc. (NASDAQ: NAGE) announced that its Tru Niagen supplement is now available at GNC and Sam's Club retail locations, as well as on both retailers' e-commerce platforms.

The expansion brings Tru Niagen to nearly 300 retail locations across 44 states combined. At GNC, the product lineup includes Tru Niagen Beauty and Tru Niagen 300mg 30-count bottles, available in store and online. Sam's Club carries Tru Niagen 300mg 120-count bottles in store and online.

"Expanding Tru Niagen across GNC and Sam's Club strengthens our retail footprint and puts the category-leading NAD+ supplement in front of new consumer audiences," said Rob Fried, CEO of Niagen Bioscience. "These partnerships reflect the growing demand for credible, science-backed healthy aging solutions."

Tru Niagen is an NAD+-boosting supplement that the company says is clinically shown to increase NAD+ levels. The product is powered by Niagen, a patented form of nicotinamide riboside. According to the company, the supplement is supported by more than 45 human clinical studies and over 500 published scientific studies. The company claims Tru Niagen is the number one NAD+-boosting oral supplement in the United States, based on revenue per the largest U.S. e-commerce marketplace from January 2025 through December 2025.