Mannatech CEO and Chief Science Officer Dr. Robert Sinnott Featured in Nutraceuticals World

  Mannatech CEO and Chief Science Officer Dr. Robert Sinnott Featured in
  Nutraceuticals World

     Sinnott discusses the role of Open Innovation in Mannatech’s product
                                 development

Business Wire

COPPELL, Texas -- April 8, 2013

Mannatech, Incorporated  (NASDAQ: MTEX), the leading innovator and provider of
naturally sourced supplements based on Real Food Technology^® solutions, is
pleased to share that CEO and Chief Science Officer, Dr. Robert Sinnott was
interviewed by Nutraceuticals World Magazine for their ongoing series titled
“Open Innovation in Nutraceuticals & Functional Foods.”

The priority of Nutraceuticals World is to serve the manufacturers of dietary
supplements, functional foods and nutritional beverages. The publication
covers market and technology developments, dissects regulatory issues and
provides international perspectives unique to the supplement, food and
beverage market.In this particular issue, the article focuses on the actual
practices of Open Innovation (OI), asking industry peers to share the
experiences and challenges they have faced using these techniques for product
development. Dr. Sinnott shared how Mannatech specifically incorporates Open
Innovation to leverage its thousands of global distributors.

As quoted from the article from Dr. Sinnott:

“At Mannatech, we have always had enormous respect for the collective wisdom
of our sales force—about 500,000 independent distributors in more than 20
countries—but the question for us was how to employ OI on a grand scale so
they could be meaningfully and constructively engaged in our product ideation
and development process.”

“The proof of the success of our innovative application of OI is, of course,
reflected in the bottom line. We believe that our associates can sell these
products with passion because they were created with their input and are thus
fundamentally aligned with their beliefs and their needs.”

Open Innovation has contributed to the development of several of Mannatech’s
proprietary products such as PhytoBurst^® Chews, Omega-3 with Vitamin D[3],
GI-ProBalance^® and BounceBack^®. Mannatech’s newest flagship product,
NutriVerus™ Powder (launched in May 2012), was specifically developed in
response to suggestions made on the MannaThink℠ forum. Mannatech facilitates
and fosters the culture of Open Innovation by hosting a dedicated website for
its associates called MannaThink.

The full transcription of the interview can be found HERE. Individuals
interested in Mannatech’s products or in exploring its business opportunity
can learn more at 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. 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, Canada, South Africa, Australia, New
Zealand, Austria, Denmark, Germany, Norway, Sweden, the Netherlands, the
United Kingdom, Japan, Taiwan, Singapore, Estonia, Finland, the Republic of
Ireland, Czech Republic, the Republic of Korea, Mexico and Namibia. 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 “believe,” “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.

Contact:

Mannatech, Incorporated
Brett Duncan, 972-471-7367
bduncan@mannatech.com