Usana Health Sciences, Inc., or USANA, is an American direct-selling company based in West Valley City, Utah. As of 2021, Usana was the 14th largest direct-selling company in the world by revenue. The company manufactures most of its nutritional products, dietary supplements, and skincare products at a West Valley City facility. It develops and manufactures high-quality, science-based nutritional and personal care products with a primary focus on promoting long-term health and wellness. Its products are sold in 25 countries via a network of independent distributors. Wikipedia