EXHIBIT 3.6


                           UNANIMOUS WRITTEN CONSENT
                         OF THE BOARD OF DIRECTORS OF
                            MANNATECH, INCORPORATED


     The undersigned, being all of the members of the Board of Directors (the

"Board') of Mannatech, Incorporated, a Texas corporation (the "Corporation"), do

hereby waive notice and consent that when they shall have signed this consent,

or identical counterparts hereof, the following resolutions shall then be deemed

to be adopted, to the same extent and with the same force and effect as if

adopted by a unanimous vote at a formal meeting of the Board duly called and

held for the purpose of acting upon the proposal to adopt such resolutions, all

in accordance with Article 9.10(B) of the Texas Business Corporation Act:

Amendment to Bylaws

     WHEREAS, Article 111, Section 7, paragraph 2 of the Corporation's Second
Amended and Restated Bylaws provides, in part, that "during the period between
any two successive annual meetings of shareholders, the Board of Directors may
not fill more than two such directorships;

     WHEREAS, the Board deems it to be in the best interests of the Corporation
to amend and restate Article 111, Section 7, paragraph 2 of the bylaws;

     RESOLVED that Article 111, Section 7, paragraph 2 of the Bylaws is hereby
amended to read as follows:

        "Any directorship to be filled by reason of an increase in the number of
directors may be filled (a) by the Board of Directors for a term of office
continuing only until the next election of one or more directors by the
shareholders; PROVIDED, HOWEVER, that during the period between any two
successive annual meetings of shareholders, the Board of Directors may not fill
more than three such directorships; or (b) by election at an annual or special
meeting of shareholders entitled to vote in the election of such directors
called for that purpose."

Board of Directors

     WHEREAS, Article III, Section 1 of the Corporation's Second Amended and
Restated Bylaws provides that the Board may determine the number of directors
that constitute the Board;

     WHEREAS, the Board desires to increase the size of the Board from eight
directors to nine directors;


     WHEREAS, Article 111, Section 7 of the Corporation's Second Amended and
Restated Bylaws provides that, subject to certain conditions, any directorship
to be filled by reason of an increase in the number of directors may be filled
by the Board for a term of office continuing only until the next election of one
or more directors by the shareholders; and

     WHEREAS, the Board desires to elect Roger Beutner to serve as a director.

     NOW, THEREFORE, BE IT RESOLVED, that the Board hereby increases the size of
 the Board to nine directors; and

     RESOLVED FURTHER, that Roger Beutner is hereby elected to serve on the
 Board for a term continuing until the next election of one or more directors by
 the shareholders.

 Promotion to Senior Vice President

     WHEREAS, the Company deems it in the best interest of the Company that
 Brad Wayment be promoted to Senior Vice President effective as of November 8,
 2000.  This determination is based upon Mr. Wayment's good performance,
 additional duties and responsibilities, and the innovative programs he has
 created.

     RESOLVED FURTHER that Brad Wayment is hereby promoted to Senior Vice
 President, effective as of November 8, 2000.

 General

     RESOLVED, that the proper officers of the Corporation hereby are severally
 authorized and empowered to sign, execute, certify to, verify, acknowledge,
 deliver, accept, file, and accord any and all instruments, agreements, and
 documents, and to take, or cause to be taken, any and all actions, in the name
 and on behalf of the Corporation or otherwise, as any such officer shall, in
 such officer's sole discretion, deem necessary or desirable and in the best
 interest of the Corporation in order to effect the foregoing resolutions, and
 in order to carry out the purposes of the foregoing resolutions, and such
 officer's signature, or such actions taken by such officer, shall be conclusive
 evidence that such officer did deem same to be necessary or desirable and in
 the best interest of the Corporation in order to effect such purposes; and

     RESOLVED FURTHER, that each and every action taken by any officer of the
 Corporation prior to the date of the adoption of the foregoing resolutions
 which would have been authorized by the foregoing resolutions but for the fact
 that such actions were taken prior to such date, be, and each is hereby,
 ratified, approved, confirmed and adopted in all respects.


                           [Signature Page Follows]


IN WITNESS WHEREOF, the undersigned do hereby execute this unanimous consent to
be effective as of this day of November 17, 2000.

                                    /s/ CHARLES E. FIORETTI
                                    ---------------------------------
                                    Charles E. Fioretti, Chairman

                                    /s/ SAMUEL L. CASTER
                                    ---------------------------------
                                    Samuel L. Caster, Director

                                    /s/ ROBERT M. HENRY
                                    ---------------------------------
                                    Robert M. Henry, Director

                                    /s/ ANTHONY E. CANALE
                                    ---------------------------------
                                    Anthony E. Canale, Director

                                    /s/ TERRY L. PERSINGER
                                    ---------------------------------
                                    Terry L. Persinger, Director

                                    /s/ STEVEN A. BARKER
                                    ---------------------------------
                                    Steven A. Barker, Director

                                    /s/ JAMES M. DOYLE JR.
                                    ---------------------------------
                                    James M. Doyle Jr., Director

                                    /s/ JULES T. ZIMMERMAN
                                    ---------------------------------
                                    Jules T. Zimmerman, Director