UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a)
of the Securities Exchange Act of 1934
(Amendment No.    )

Filed by the Registrant  x

Filed by a Party other than the Registrant  ¨

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Preliminary Proxy Statement
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Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
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Definitive Proxy Statement
 
x
Definitive Additional Materials
 
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Soliciting Material Pursuant to §240.14a-12
 

Mannatech, Incorporated
(Name of Registrant as Specified In Its Charter)
 
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote ***
Important Notice Regarding the Availability of Proxy Materials for the
Shareholder Meeting to Be Held on May 28, 2014.
 
MANNATECH, INCORPORATED
 
Meeting Information
   
 
Meeting Type:             Annual Meeting
For holders as of:       April 4, 2014
Date:   May 28, 2014   Time: 9:00 AM CDT
Location:  Grapevine Convention Center
1209 S. Main St.
Grapevine, TX 76051
 
Directions: Directions to the 2014 Annual Shareholders' Meeting can be viewed online at www.GrapevineConventionCenter.com
 
 
 
600 S. ROYAL LANE
SUITE 200
COPPELL, TX 75019
 
You are receiving this communication because you hold shares in the company named above.
 
This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).
 
We encourage you to access and review all of the important information contained in the proxy materials before voting.
 
 
 
 
 
See the reverse side of this notice to obtain proxy materials and voting instructions.


— Before You Vote —
How to Access the Proxy Materials
 
 
Proxy Materials Available to VIEW or RECEIVE:
 
1. Proxy Statement    2. Annual Report
 
How to View Online: 
 
Have the information that is printed in the box marked by the arrow è XXXX XXXX XXXX  (located on the following page) and visit: www.proxyvote.com.
 
How to Request and Receive a PAPER or E-MAIL Copy:
 
If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:
 
   
 
1) BY INTERNET:
www.proxyvote.com
 
 
2) BY TELEPHONE:
1-800-579-1639
 
 
3) BY E-MAIL*:
sendmaterial@proxyvote.com
 
   
 
* If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow è XXXX XXXX XXXX (located on the following page) in the subject line.

Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 14, 2014 to facilitate timely delivery.
 
 

— How To Vote —
Please Choose One of the Following Voting Methods
 
 
 
Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares.

Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow è XXXX XXXX XXXX (located on the following page) available and follow the instructions.

Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.
 
 

Voting Items
 
 
The Board of Directors recommends you vote FOR the following:

1. Election of Directors

Nominees:
 
1) Alan D. Kennedy
2) Robert A. Toth
 
The Board of Directors recommends you vote FOR the following proposals:
 
2. To ratify the appointment of BDO USA, LLP as our independent registered public accounting firm, for the year ending December 31, 2014.
 
3. To approve on an advisory basis executive compensation ("Say-on-Pay").
 
4. To approve an amendment to the 2008 Stock Incentive Plan to increase the number of shares of common stock subject to the Plan by 130,000.
 
NOTE: The shares represented by this proxy, when properly executed, will be voted in the manner directed herein by the undersigned Shareholder(s). If no direction is made, this proxy will be voted FOR proposals 1, 2, 3 and 4. If any other matters properly come before the meeting, or if cumulative voting is required, the person named in this proxy will vote in his discretion.