USANA Health Sciences, Inc. develops, manufactures, and sells science-based nutritional, personal care, and skincare products in the Asia Pacific, the Americas, and Europe. It operates in two segments, Core nutritional and Hiya Direct-To-Consumer. The company offers USANA nutritional optimizers, including supplements for cardiovascular health, skeletal/structural health, and digestive health; Essentials/CellSentials, such as vitamin and mineral supplements for age group beginning with children 13 months of age; and food products that include meal replacement shakes, snack bars, and other related products for healthy weight management, digestive health, and energy and hydration. It offers Celavive, a skincare regimen for various skin care types and ethnicities; and all other products comprising materials and online tools for associates to build business and marketing of products The company sells its products through retail customers, a subscription model, and direct selling, as well as online. The company was founded in 1992 and is headquartered in Salt Lake City, Utah.