Oxford Healthspan has launched Primeadine GF Spermidine Powder, a mixable gluten-free spermidine supplement announced on 15 October 2026 in Sheridan, Wyoming.
The powder expands the Primeadine GF line and offers an alternative to tablets for consumers who prefer adding supplements to food or beverages.
Each serving provides 1 mg of whole-food spermidine, which the company says is consistent with doses used in human research and designed for consistency and ease of use.
The formula uses three Okinawa-sourced ingredients: broken cell wall chlorella naturally high in spermidine, nobiletin from Shikuwasa citrus peel, and curcumin from turmeric.
Oxford Healthspan says all Primeadine products are third-party tested for purity and potency, ISO 22000-certified, and developed with longevity researchers, including collaborators from the University of Oxford.
