Mannatech Receives Wells Notice on Previously Disclosed Inquiry

COPPELL, Texas--(Business Wire)--
Mannatech, Incorporated ("Mannatech") (NASDAQ: MTEX), a leading
developer and provider of dietary supplements and skin care solutions,
today announced that it and its Chief Financial Officer and the
Chairman of Mannatech's Audit Committee have received a notification,
commonly referred to as a "Wells Notice," from the staff of the
Division of Enforcement (the "Staff") of the United States Securities
and Exchange Commission (the "SEC") related to the timing and
completeness of Mannatech's October 2007 disclosure regarding its
dismissal of Grant Thornton LLP as its independent registered public
accountants. The Wells Notice stems from an informal inquiry commenced
by the SEC with respect to the disclosure, which informal inquiry was
previously disclosed by Mannatech in its Form 10-K for the year ended
December 31, 2007, which was filed with the SEC on March 17, 2008.

The Wells Notice indicates that the Staff is considering
recommending to the SEC that the SEC bring cease and desist
proceedings against Mannatech and the individuals alleging that it
violated, and the individuals allegedly caused it to violate, Section
13(a) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act") and Rules 13a-11 and 12b-20 thereunder.

Under the SEC's procedures, a Wells Notice from the SEC affords
recipients an opportunity to present information and defenses in
response to the allegations to the Staff prior to the Staff making a
formal recommendation to the SEC whether any action should be
authorized. There can be no assurance that the SEC will not bring an
enforcement action against Mannatech or its officers or directors.

Mannatech has fully and voluntarily cooperated with the SEC
inquiry relating to this matter and presently intends to respond to
the Wells Notice. Mannatech cannot predict with certainty the extent
of its ultimate liability with respect to the investigation and any
and all future securities matters. The costs and other effects of any
future litigation, government investigations, legal and administrative
cases and proceedings, settlements, judgments and investigations,
claims and changes in relation to the investigation could have a
material adverse effect on Mannatech's financial condition and
operating results.

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.

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,
potential regulatory violations, including the results of any
proceeding commenced by the United States Securities and Exchange
Commission relating to the Wells Notice received by Mannatech,
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.

Mannatech, Incorporated
Gary Spinell, 972-471-6512
Vice President
Corporate Communications
ir@mannatech.com
www.mannatech.com
www.exploremannatech.com

Copyright Business Wire 2008