Mannatech Schedules Third Quarter 2011 Earnings Release and Conference Call

Mannatech, Incorporated (NASDAQ: MTEX) announced today that its financial results for the third quarter of 2011 will be released on Wednesday, November 2, 2011, after the NASDAQ market closes. Mannatech will host a conference call to discuss the quarter’s results with investors on Thursday, November 3, 2011 at 9 a.m. CDT, 10 a.m. EDT. The live call will be webcast and can be accessed on Mannatech’s website at http://ir.mannatech.com.

For those unable to listen to the live broadcast, a replay will be available shortly after the call. The toll-free replay number is 888-286-8010 (International: 617-801-6888); the Conference ID to access the call is 74896076.

About Mannatech

Mannatech, Incorporated, develops high-quality health, weight and fitness, and skin care products that are based on the solid foundation of nutritional science and development standards. Mannatech is dedicated to its platform of Social Entrepreneurship based on the foundation of promoting, aiding and optimizing nutrition where it is needed most around the world. Mannatech's proprietary products are available through independent sales Associates around the globe including the United States, United Kingdom, Canada, South Africa, Australia, New Zealand, Austria, Denmark, Germany, Norway, Sweden, the Netherlands, Japan, Taiwan, Singapore, Estonia, Finland, the Republic of Ireland, Czech Republic, the Republic of Korea and Mexico. For more information, visit Mannatech.com.

Please Note: This release contains "forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. These forward-looking statements generally can be identified by use of phrases or terminology such as "intend” or other similar words or the negative of such terminology. Similarly, descriptions of Mannatech’s objectives, strategies, plans, goals or targets contained herein are also considered forward-looking statements. Mannatech believes this release should be read in conjunction with all of its filings with the United States Securities and Exchange Commission and cautions its readers that these forward-looking statements are subject to certain events, risks, uncertainties, and other factors. Some of these factors include, among others, Mannatech’s inability to attract and retain associates and members, increases in competition, litigation, regulatory changes, and its planned growth into new international markets. Although Mannatech believes that the expectations, statements, and assumptions reflected in these forward-looking statements are reasonable, it cautions readers to always consider all of the risk factors and any other cautionary statements carefully in evaluating each forward-looking statement in this release, as well as those set forth in its latest Annual Report on Form 10-K and Quarterly Report on Form 10-Q, and other filings filed with the United States Securities and Exchange Commission, including its current reports on Form 8-K. All of the forward-looking statements contained herein speak only as of the date of this release.