NEWS RELEASE

Mannatech sues seven companies for alleged patent infringement

(COPPELL, Texas) March 17, 2010 – Mannatech, Incorporated (NASDAQ: MTEX - News), a global pioneer in the development of high-quality health, weight and fitness and skin care solutions based on nutritional science, announced it has filed a complaint against seven independent companies for infringement on Mannatech’s patents (U.S. Patents 6,929,807; 7,157,431; 7,199,104; and 7,202,220).

This complaint brings patent infringement claims against the following companies (products):

• Country Life, LLC, Country Life Manufacturing, LLC (Realfood Organics Her Daily Nutrition, His Daily Nutrition, Your Daily Nutrition, Ultimate Daily Nutrition and Glyconutrient Complex)
• EvenBetterNow, LLC, (EBN® Glyconutrients)
• Micro Health Solutions, LLC, (Glyco Balance)
• New Sun, Inc., (Salmana)
• Oasis Advanced Wellness, LLC, (GlycoEssential 7)
• Roex, Inc. (Cell Talk)
• VDF Futurecueticals, Inc. (GlycoBerry 8)

“Mannatech has a history of successfully defending our patents, and we will continue to fight for our intellectual property,” said Keith Clark, Mannatech executive vice president and chief legal officer. Mannatech is represented by Eric Pinker, Mark Turk and Renee Strickland, with the Dallas-based litigation firm of Lynn Tillotson Pinker & Cox, LLP.  

Mannatech has had three favorable rulings in the last year alone against Techmedica Health Inc., Ionx Holdings LLC, Boston Mountain Laboratories Inc., and Green Life LLC. Each of these companies has been ordered to stop making, using, offering to sell, selling, or otherwise distributing within the United States, or importing into the United States, products which infringe Mannatech’s patents. Mannatech began its patent infringement efforts with a successful jury verdict against Glycoproducts International Inc.,in May 2008, effectively putting the company out of business.

“These results have been comprehensive and decisive, removing eleven infringing products from the market. Today’s action only reinforces our commitment to supporting our Associates and the Ambrotose products we all believe in so strongly,” said Clark.

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Mannatech has distinguished itself in the emerging glyconutrients market through the development of Ambrotose complex, the technology for which it holds more than 45 patents in 30 countries. Glyconutrients are dietary ingredients containing beneficial amounts of carbohydrates which are believed to represent a new category of untapped vital nutrients for proper nutrition.

Many of Mannatech’s products are based on Real Food TechnologySM solutions, which provide consumers with products that contain standardized levels of natural and plant-sourced nutrients. Food-sourced ingredients are chosen from those scientifically proven to most benefit the human body. Mannatech offers the best alternative to synthetic vitamin and mineral products and so-called “super-juice” products.

Individuals interested in Mannatech’s products or in exploring its business opportunity can learn more at www.mannatech.com.
                                                                                                             
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. These proprietary products are available through independent sales Associates around the globe including the United States, Canada, South Africa, Australia, New Zealand, Austria, Denmark, Germany, Norway, Sweden, the Netherlands, the United Kingdom, Japan, Taiwan, Singapore and the Republic of Korea. For more information, visit 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 newinternational 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.