USANA Health Sciences Inc (USANA) is a direct selling and direct-to-consumer company specializing in nutrition, personal health, and wellness products. The company develops and manufactures high-quality, science-based nutritional, personal care, and skincare products. It also offers diet and energy related products such as chocolate shakes, cream, nutritional bars and energy drinks. The company operates in 25 geographic markets worldwide and primarily distributes its products through direct selling channels.

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USANA focuses its R&D initiatives on developing and bringing to market high-quality, science-based nutritional supplements that promote long-term health and wellness. The company's R&D activities include identifying emerging trends, investigating new ingredients, developing new products, and updating existing formulas to align with the latest science and regulations. The R&D team supports product ideation, research, and formulation for acquired businesses and collaborates with academic institutions and research organizations to identify new ingredients and product upgrade opportunities. The company employs experts in quality assurance, quality control, and global regulatory affairs to manage the product development lifecycle, ensuring products are consistent, safe, and compliant with international regulations. The company aims to differentiate itself in the marketplace through proprietary, science-backed formulations and innovative solutions tailored to specific regulatory and consumer requirements. The R&D unit of USANA is responsible for fortifying the company's proprietary position by employing exclusive ingredients, proprietary formulations, product-specific scientific validation, and patent protection. The unit maintains an active research pipeline supporting the company's proprietary InCelligence technology and utilizes clinical research to drive advances in core health categories. In FY2025, the company incurred expenses of US$10.7 million on R&D, which as a percentage of revenue, stood at 1.2%. As of December 2025, the company owns 10,632,101 US patents for the InCelligence complex formula and 34 trademarks, which are registered with the US Patent and Trademark Office.