Mannatech Launches New Products and Sales Incentive at MannaQuest 2008

Mannatech, Incorporated (NASDAQ:MTEX), a leading developer and provider of dietary supplements and skin care solutions, held its annual training convention last week from Sept. 3 through Sept. 6, in Chicago, Ill., drawing attendance of more than 1,600 independent sales Associates and Members from 11 countries. The company launched a new fat loss product and reintroduced its BounceBack™ capsules that help minimize the effects of workouts, while sales Associates participated in training seminars.

OsoLean™ powder is all-natural, with no preservatives and targets fat loss while sparing lean muscle.

"With higher attendance, notable speakers and training events at this year’s convention, MannaQuest provided a significant platform for our Associates and Members to learn successful business-building strategies to promote growth of their individual businesses,” said Wayne Badovinus, president and CEO of Mannatech. "Our Associates have shown excitement around the growing opportunity of the wellness industry as well as the new fourth quarter sales incentive and new product launches.”

Other noteworthy events included training sessions conducted by company leadership and inspirational speeches from ESPN commentator and WNBA basketball legend, Nancy Lieberman, and former Dallas Cowboy’s wide receiver, Butch Johnson. In addition, several Team Mannatech™ members who competed in the 2008 Olympics were honored at the event.

About Mannatech

Mannatech, Incorporated, is a global wellness solutions provider of innovative, high quality, proprietary nutritional supplements, topical and skin care products, and weight management products sold through independent associates and members located in the United States and the international markets of Canada, Australia, the United Kingdom, Japan, New Zealand, the Republic of Korea, Taiwan, Denmark, Germany, and South Africa. For more information please visit www.mannatech.com or www.allaboutmannatech.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.