Salt Lake City - SALT LAKE CITY -- USANA Health Sciences Inc. a leading developer and manufacturer of nutritional supplements, and the Sony Ericsson WTA Tour, the world's leading global sport for women, announced today the signing of a landmark agreement that will provide Tour players with vitamins and health supplements that are backed by an athlete guarantee of purity from any substances prohibited by the World Anti-Doping Agency (WADA).

"Up until now, the inability of our players to take vitamins and health supplements without fear of accidentally ingesting a prohibited substance has been a real issue," said Larry Scott, CEO of the Sony Ericsson WTA Tour. "In USANA, the Tour has found a manufacturer that can not only meet the Tour's and WADA's rigorous anti-doping standards, but one that is also willing to back it up with both athlete and Tour guarantees. This is fantastic news for players, and a critically important step forward in ensuring player health while maintaining the strict anti-doping standards that are necessary to continue to ensure that women's tennis remains a clean sport."

Under the terms of the agreement, should any Sony Ericsson WTA Tour athlete test positive for a substance prohibited by WADA due to her use of USANA products, USANA will pay the player twice her prize money earnings from the prior year, up to $1 million. Additionally, as part of its purity guarantee, USANA has warranted to the Tour that products supplied as part of the player program do not contain any prohibited substances. USANA has manufactured nutritional supplements since 1993 and has a history of working with elite athletes, including members of the U.S. and Canadian Olympic Speed Skating Team.

"One of USANA's primary goals, since the beginning, has been to afford people around the globe the opportunity of attaining true optimal health," said Dave Wentz, president of USANA Health Sciences. "For over a decade, world-renowned athletes have trusted their health to USANA. And today, we are proud to align ourselves with the elite competitors of the Sony Ericsson WTA Tour -- united in a joint effort to provide pure, high-quality supplementation for the athletes of today, and ensuring a focus of long-term health for the athletes of tomorrow."

About USANA

USANA develops and manufactures high-quality nutritionals, personal care, and weight management products that are sold directly to Preferred Customers and Associates throughout the United States, Canada, Australia, New Zealand, Hong Kong, Japan, Taiwan, South Korea, Singapore, Mexico, the Netherlands, and the United Kingdom. More information on USANA can be found at http://www.usanahealthsciences.com.