USANA HEALTH SCIENCES INC

We conduct manufacturing, production, and quality control operations for approximately 56% of our products in-house. We have established and maintain a manufacturing and quality control facility at our corporate headquarters in Salt Lake City, Utah. We utilize a separate 54,000 square foot manufacturing facility located adjacent to our corporate headquarters to manufacture our food products in-house. BabyCare manufactures and produces the majority of its products in-house and maintains manufacturing and quality control facilities in Beijing, China and Tianjin, China.

Manufacturing

Our production process uses automatic and semi-automatic equipment and includes the following activities by type:

We conduct sample testing of raw materials, in-process materials, and finished products for purity, potency, and composition to determine whether our products conform to our internal specifications, and we maintain complete documentation for each of these tests. We employ a qualified staff of professionals to develop, implement, and maintain a quality system designed to ensure that our products are manufactured to our internal and applicable regulatory agency specifications.

Our Salt Lake City, Utah, manufacturing facilities are registered, as required, with the FDA, Health Canada Natural Health Products Directorate, the Australian Therapeutic Goods Administration (“TGA”), and other governmental agencies. These and other various organizations and government agencies regularly audit this facility to assess, among other things, compliance with current Good Manufacturing Practices (“GMPs”) and with labeling claims. Additionally, our Salt Lake City, Utah manufacturing facilities are certified, through inspection and audits, with the Islamic Foods and Nutrition Counsel of America in compliance with Halal, The Organized Kashrus Laboratories in compliance with Kosher, NSF International in compliance with product testing and GMPs, and the TGA in compliance with the current Therapeutic Goods Act in Australia.

The manufacture of nutritional or dietary supplements and related products in the United States requires compliance with dietary supplement GMPs, which are based on the food-model GMPs and pharmaceutical GMPs, with additional requirements that are specific to dietary supplements. We are audited by the FDA, specifically for dietary supplements, and have historically been found to be in compliance with GMPs for dietary supplements. Although the FDA has not promulgated GMPs for personal care items, it has issued guidelines for manufacturing personal care products. We voluntarily maintain compliance with the guidance established by the FDA and the Personal Care Products Council.

Our Beijing, China manufacturing facility is registered with State Administration of Market Regulation (“SAMR”), which includes the China Food and Drug Administration. Our facility in Beijing is audited regularly by various organizations and government agencies to assess, among other things, compliance with applicable GMPs, and with labeling claims.

Third-Party Suppliers and Manufacturers

We contract with third-party suppliers and manufacturers for the production of certain of our products, which accounted for approximately 44% of our product sales in 2025, an increase from prior years as a result of the Hiya acquisition in December 2024. These third-party suppliers and manufacturers produce and, in most cases, package these products according to formulations that have been developed by or in conjunction with our in-house product development team. These products include most of our gelatin-capsulated supplements, Rev3 Energy® Drink, Probiotics, certain powdered drink mixes, protein drinks, most of Hiya's products and certain of Rise's products. In 2026, we plan to continue transitioning the production of our powdered drink mixes as well as various Hiya products to our USANA facilities.

Products manufactured by third-party suppliers at their locations must also pass through quality control and assurance procedures to ensure they are manufactured in conformance with our specifications. As noted above, with the expansion of our manufacturing facility in Salt Lake City, Utah, we are able to manufacture our foods product line. Additionally, we plan to increase the proportion of the personal care and skincare products that we manufacture. This will reduce our reliance on third-party suppliers and manufacturers and add to our operating strengths, which are described below in this Annual Report.

Quality Control and Assurance

We have in-house microbiology and analytical chemistry labs in which we conduct quality control processes. In our microbiology laboratory, scientists test for biological contamination of raw materials and finished goods. In our analytical chemistry laboratory, scientists test for chemical contamination and accurate levels of active ingredients in both raw materials and finished products. Scientists also identify and confirm all raw materials used in the manufacturing process through scientifically valid means. Both laboratories conduct stability tests on finished products to determine the shelf life of our products. Our Salt Lake City, Utah laboratory staff also performs chemical assays on vitamin and mineral constituents, using USP methods and other internally validated methods. In addition to our quality control and clinical laboratories, both our headquarters and China facilities also house a laboratory designated for R&D.

Raw Materials

Most of the raw ingredients used in the manufacture of our products are available from a number of suppliers. Our raw material suppliers must demonstrate stringent process and quality control before we use their products in our manufacturing process. When supplies of certain raw materials have tightened, we have been able to find alternative sources of raw materials, and believe we will be able to do so in the future, if the need arises.