Document:

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                                                                   EXHIBIT 10.58

                                Promissory Note

$650,000                                                    Date:  June 12, 2001
                                                            Due:   June 13, 2002

     FOR VALUE RECEIVED, the receipt and sufficiency of which are hereby
acknowledged,  Nutrition For Life International, Inc., a Texas corporation (the
"Company") hereby promises to pay to the order of Bactolac Pharmaceutical Inc.
(the "Payee") at 7 Oser Avenue, Hauppauge, New York 11788 or such other place of
payment as Payee may specify from time to time in writing, in lawful money of
the United States of America, the principal amount of Six Hundred Fifty Thousand
Dollars ($650,000) together with interest on the unpaid balance of such amount
at a floating rate equal to the Prime Rate (as defined in the Additional Terms
and Conditions attached hereto and made a part hereof as if fully set forth
herein) plus 50/100% (.50%) per annum from the date of this Promissory Note (the
"Note"). The Maturity Date of the Note shall be June 13, 2002, except as
provided in the Additional Terms and Conditions.

     Payments shall be applied first to accrued interest and then to unpaid
principal. Interest shall be computed on the basis of a year consisting of
twelve months of thirty days each.

     To the fullest extent permitted by applicable law, the Company waives: (a)
presentment, demand and protest, and notice of presentment, dishonor, intent to
accelerate, acceleration, protest, default, non-payment, maturity, release,
compromise, settlement, extension or renewal of this Note; and (b) the benefit
of all valuation, appraisal, and exemption laws.

     The Company acknowledges that this Note is executed as part of a commercial
transaction and that the proceeds of this Note will not be used for any personal
or consumer purpose.

     The Company agrees to pay to the Payee all fees and expenses described in
the Additional Terms and Conditions.

     Upon the occurrence of any one or more of the Events of Default specified
in the Additional Terms and Conditions, all amounts then remaining unpaid on
this Note shall become or may be declared to be, immediately due and payable,
all as provided therein.
<PAGE>

     IN WITNESS WHEREOF, the Company has executed this Note on the day and year
first above written.

                                       NUTRITION FOR LIFE INTERNATIONAL, INC.

                                       9101 Jameel
                                       Houston, Texas  77040

                                       Signature:  ____________________________

                                       Print Name: ____________________________

                                       Title:      ____________________________

ACCEPTED:

BACTOLAC PHARMACEUTICAL INC.
7 Oser Avenue
Hauppauge, New York  11788

Signature:   __________________________

Print Name:  __________________________

Title:       __________________________

                                      -2-
<PAGE>

                    NUTRITION FOR LIFE INTERNATIONAL, INC.
                                PROMISSORY NOTE
                        ADDITIONAL TERMS AND CONDITIONS

     These Additional Terms and Conditions are attached to and shall be made a
part of the Promissory Note of Nutrition For Life International, Inc. (the
"Company") payable to Bactolac Pharmaceutical Inc. (the "Payee") dated June 12,
2001 (the "Note"), as if incorporated therein:

     1.   Default Rate of Interest.  Effective upon the occurrence of any Event
of Default and for so long as any Event of Default shall be continuing, the
interest rate shall automatically be increased by 2 percentage points (2%) per
annum (such increase rate, the "Default Rate"), and all payments due pursuant to
this Note, including unpaid interest, shall continue to accrue interest from the
date of such Event of Default at the Default Rate. If any interest or other
payment to Payee under this Agreement becomes due and payable on a day other
than a Business Day, such payment date shall be extended to the next succeeding
Business Day and interest thereon shall be payable at the then applicable rate
during such extension. "Business Day" shall exclude Saturdays, Sundays and legal
holidays in the State of Texas.

     2.   Prepayment.  The principal amount of this Note may be prepaid by the
Company, in whole or in part, without premium or penalty, at any time.

     3.   Representations, Warranties, and Covenants.  To induce the Payee to
enter into the Note and to finalize the Contemplated Transactions as that term
is defined in the Stock Purchase Agreement, dated December 29, 2000 (the
"Agreement"), which includes the Company and the Payee's affiliate as Parties,
the Company represents and warrants to the Payee (each of which representations
and warranties shall survive the execution and delivery of this Note), and
promises to and agrees with the Payee until the full payment of all amounts owed
pursuant to the Note, as follows:

          (a)  The Company is and will continue to be (i) a corporation duly
organized, validly existing and in good standing under the laws of the State of
Texas, with full corporate power and authority to conduct its business as it is
now being conducted, to own or use the properties and assets that it purports to
own and use, and to perform all its obligations under material contracts, (ii)
duly qualified to do business and in good standing in each jurisdiction in which
the nature of its business or the ownership or leasing of its properties makes
such qualification necessary, except where the failure to be so qualified could
not reasonably be expected to have a material adverse effect, and (iii) in
compliance with all material requirements of law and all material contractual
obligations, except to the extent failure to comply therewith could not
reasonably be expected to have a material adverse effect;

          (b)  The execution, delivery and performance by NFLI of this Note, (i)
are and will continue to be within the Company's power and authority, (ii) have
been and will continue to be duly authorized by all necessary or proper action,
and (iii) are not and will not be in violation of any material requirement of
law or material contractual obligation of the Company.
<PAGE>

          (c)  The Company shall conduct a network marketing business
substantially as now conducted and preserve all of its rights, privileges and
franchises necessary and desirable in connection therewith.

          (d)  The Company (i) owns and will own assets the fair saleable value
of which are (a) greater than the total amount of its liabilities (including
contingent liabilities) and (b)  greater than the amount that will be required
to pay probable liabilities of then existing debts as they become absolute and
matured considering all financing alternatives and potential asset sales
reasonably available to it; (ii) has capital that is not unreasonably small in
relation to its business as presently conducted; and (iii) does not intend to
incur and does not believe that it will incur debts beyond its ability to pay
such debts as they become due;

          (e)  Within 45 days following the end of each fiscal quarter, the
Company shall deliver to the Payee an unaudited balance sheet and operating
statement for such fiscal quarter accompanied by a certification from the Chief
Executive Officer or Chief Financial Officer of the Company that such financial
statements are complete and correct, that there was no Event of Default (or
specifying those Events of Defaults of which he or she was aware) and, within 90
days, following the close of each of the Company's fiscal years, the financial
statements for such fiscal years certified without qualification by an
independent certified accounting firm;

          (f)  The Company will not make any changes in any of its business
objectives, purposes, or operations which could reasonably be expected to
adversely affect repayment of the Note or could reasonably be expected to have a
material adverse effect or sell, transfer, or otherwise dispose of any of its
material assets or properties (except in the ordinary course of business), or
merge with or consolidate with any other entity if a "Change in Control" (as
defined below) would occur.

     4.   Events of Default.  If one or more of the following events shall
occur:

          (a)  The Company shall fail to make any payment in respect of this
Note when due and payable or declared due and payable; or

          (b)  The Company shall fail or neglect to perform, keep or observe any
of the covenants, promises, agreements, requirements or conditions or other
terms or provisions contained in Section 3 of this Agreement and such breach is
not remediable or, if remediable, continues unremedied for a period of five
Business Days after the earlier to occur of the date on which such breach is
known or reasonably should have been known to any officer of the Company and the
date on which Payee shall have notified the Company of such breach; or

          (c)  The Company files or is served with any petition for relief under
the Bankruptcy Code or any similar federal or state statute (the "Code") or the
entry by a court of competent jurisdiction of a decree or order adjudging the
Company a bankrupt or insolvent or approving as properly filed a petition
seeking reorganization, arrangement, adjustment or composition of or in respect
of the Company under the Code or appointing a receiver, trustee or other similar
official of the Company of all or substantially all of its assets, or ordering
up the

                                      -2-
<PAGE>

winding up or liquidation of its affairs, and the continuation of such decree or
order unstayed and in effect for a period of 60 consecutive days; or

          (d)  The institution by the Company or the consent to the institution
by the Company of proceedings to adjudicate the Company a bankrupt or insolvent
or the filing or consent by the Company to the filing of a petition or answer
seeking reorganization or relief under the Code, the consent by the Company to
the appointment of a receiver, trustee or other similar official of the Company
or of any substantial part of its property, or an assignment by the Company for
the benefit of creditors;

          (e)  A "Change of Control" of NFLI shall have occurred.  A "Change of
Control" shall mean any change in the composition of NFLI's shareholders which
would result in any shareholder or group acquiring 49.9% or more of any class of
stock of NFLI, or that any person (or group of persons acting in concert) shall
otherwise acquire, directly or indirectly, the power to elect a majority of the
board of directors of the Company or otherwise direct the management or affairs
of the Company by obtaining proxies, entering into voting agreements or trusts,
acquiring securities or otherwise;

          then the Payee of this Note may, without notice to the Company,
declare the entire unpaid principal of and accrued and unpaid interest on this
Note to be due and payable and, upon such declaration, the same shall become due
and payable forthwith without further demand or notice, and may exercise any
rights and remedies provided to the Payee under this Note, or at law or in
equity, including all remedies provided under the Uniform Commercial Code as the
same may, from time to time, be in effect in the State of Texas.

     5.   Notices.  Any notice or other communication given hereunder shall be
given in writing and sent by overnight courier or registered or certified mail,
return receipt requested, addressed to the Company or the Payee at their
respective addresses as set forth in the Note. Notices shall be deemed to have
been given three business days after the date of mailing or one business day
after delivery to an overnight courier. The address for notices for any party
may be changed by notice given pursuant to this Section 5.

     6.   Governing Law.  This Note and its validity, construction and
performance shall be governed in all respects by the laws of the State of Texas.

     7.   Miscellaneous.  All powers and remedies given by this Note to the
Payee shall, to the extent permitted by law, be deemed cumulative and not
exclusive of any power or remedy or of any other powers and remedies available
to the Payee, by judicial proceedings or otherwise, to enforce the performance
or observance of the agreements contained in this Note.  No delay or omission of
the Payee to exercise any right or power accruing upon any default shall impair
any such right or power or shall be construed to be a waiver of any such default
or any acquiescence thereof.  The Company waives presentment for payment,
protest, the filing of suit or the taking of any other action for the purpose of
fixing its liability for payment of the Note.

                                      -3-<PAGE>

                                                                   EXHIBIT 10.59

                        Release And Settlement Agreement

     THIS AGREEMENT (the "Agreement") is made as of June 29, 2001, among
Advanced Nutraceuticals, Inc., a Texas corporation ("ANI"), Bactolac
Pharmaceutical Inc., a Delaware corporation ("Bactolac"), Allan I. Sirkin ("Al
Sirkin") and Neil Sirkin (Al Sirkin and Neil Sirkin are referred to collectively
as the "Sirkins").  Each of ANI, Bactolac, Al Sirkin, and Neil Sirkin is
sometimes referred to as a "Party" and may be collectively referred to as the
"Parties."

                                    RECITALS

     1.  The Sirkins entered into an Agreement and Plan of Merger, dated October
25, 1999 with various affiliates of ANI which was amended pursuant to the
Amendment to Agreement and Plan of Merger, dated November 24, 1999 (the
Agreement and Plan of Merger and Amendment to Agreement and Plan of Merger are
referred to collectively as the "Merger Agreement"); and

     2.  Pursuant to the Merger Agreement, Ash Corp merged into Bactolac
Pharmaceutical Inc., an affiliate of ANI (the "Merger"); and

     3.  Prior to the Merger, the Sirkins owned an aggregate of 80% of the stock
of Ash Corp; and

     4.  In exchange for all of the stock of Ash Corp, the then shareholders of
Ash Corp received from ANI:  (i) ANI stock; (ii) $750,000 in cash; (iii)
subordinated promissory notes in the aggregate principal amount of $500,000 (the
"Notes"); and (iv) the right to possibly receive additional shares of ANI stock
as set forth in an Earnout Agreement dated November 30, 1999 (the "Earnout
Agreement"); and

     5.  The Closing of the Merger of Ash Corp into Bactolac was held on or
about November 30, 1999, and, in connection with the Merger, ANI issued its
stock to the then shareholders of Ash Corp, paid to the then shareholders of Ash
Corp $750,000 in cash, issued the Notes in the principal amount of $155,000 to
Neil Sirkin and in the principal amount of $345,000 to Al Sirkin, entered into
an Earnout Agreement with Al Sirkin, Neil Sirkin and the two other persons who
were then shareholders of Ash Corp, Bactolac entered into an Employment
Agreement with Al Sirkin and Bactolac entered into an Employment Agreement with
Neil Sirkin; and

     WHEREAS certain disagreements have developed among ANI, Bactolac and the
Sirkins regarding compliance with certain provisions of the Merger Agreement and
the Employment Agreements, but the Parties believe it is mutually desirable to
resolve these disagreements in the manner set forth in this Agreement.

     NOW, THEREFORE, in consideration of the mutual promises and agreements
contained herein, and intending to be legally bound, the Parties resolve and
agree as follows:
<PAGE>

     1.  Payment of the Agreement Notes.  At the Closing (as hereinafter
         ------------------------------
defined), (a) Al Sirkin will deliver to ANI the promissory note in the principal
amount of $345,000 payable to Al Sirkin signed PAID by Al Sirkin, (b) Neil
Sirkin shall deliver to ANI the promissory note in the principal amount of
$155,000 payable to him signed PAID by Neil Sirkin, and (c) ANI shall make a
wire transfer to an account designated by the Sirkins of the amount of $435,000.

     2.  Closing.  The Closing will be held at 3600 25/th/ Avenue, Gulfport,
         -------
Mississippi at 11:00 a.m. on July ___, 2001 unless the Parties agree to a
different place, time and date.

     3.  Earnout Agreement.  At the Closing, the Sirkins shall deliver to ANI a
         -----------------
document satisfactory to ANI confirming that the Sirkins no longer have any
right, title and interest in and to any earnout payments or other benefits
pursuant to the Earnout Agreement and assigning to ANI any and all earnout
payments or other benefits which might accrue or might have accrued to them
pursuant to the Earnout Agreement.

     4.  Termination of Employment Relationship of Al Sirkin.  Bactolac and Al
         ---------------------------------------------------
Sirkin have agreed upon Al Sirkin's termination from his positions as an Al
Sirkin of Bactolac and in any other capacity with Bactolac and ANI, such
termination to become effective July 31, 2001 (the "Employment Termination
Date").  The Employment Agreement, dated November 30, 1999, between Bactolac and
Al Sirkin is terminated.

     5.  Payments and Other Arrangements with Al Sirkin.  Until the Employment
         ----------------------------------------------
Termination Date, Al Sirkin shall remain an employee of Bactolac, and will
assist in transition activities reasonably requested by Bactolac.  Al Sirkin
will receive his regular salary payments during the month of July, 2001 for his
services through the Employment Termination Date.  If possible, Bactolac  will
continue to maintain Al Sirkin's wife, Judy Sirkin, as a participant in the
Bactolac's medical health insurance program and will pay the premiums of $315.97
per month attributable to her medical insurance from the Employment Termination
Date through August 31, 2002.  To the extent that such policy cannot be
maintained, Bactolac will pay to Judy Sirkin $315.97 per month through August
31, 2002.  Al Sirkin's medical insurance benefits will be terminated as of the
Employment Termination Date, unless Al Sirkin exercises his right to participate
in Bactolac's medical insurance program under the provisions generally known as
COBRA at Al Sirkin's expense.  During the months of August, 2001 through August
2002, Bactolac shall pay to Al Sirkin $315.97 per month for Al Sirkin's use for
medical insurance or other medical related payments.  It is understood between
the parties that Al Sirkin will be seeking a supplemental health insurance
policy (supplemental to Medicare) which if it is available will be paid for by
ANI (so long as its cost does not exceed $315.97).  In the event that the cost
is less than the agreed to $315.97, ANI will pay to Al Sirkin the difference on
a monthly basis from August 1, 2001 through August 31, 2002.

     6.   Release by Al Sirkin.  Al Sirkin releases and waives all claims for
          --------------------
loss, damage or injury arising from or in any way relating to the following
("Claims"):

          (a) The employment of Al Sirkin with Bactolac, including his
positions, if any, as an officer of Bactolac, and his termination from
employment and his positions with Bactolac, ANI and any of their affiliates.

                                      -2-
<PAGE>

          (b) Discrimination on the basis of age, sex, race, religion, national
origin or any other basis, including claims under the Age Discrimination in
Employment Act.

          (c) Other violations of federal, state or local statutes, ordinances,
regulations, rules, decisions or laws.

          (d) Failure of Bactolac, ANI or any of their affiliates to act in good
faith and deal fairly.

          (e) Injuries, illness or disabilities of Al Sirkin.

          (f) Exposure of Al Sirkin to toxic or hazardous materials.

          (g) Stress, anxiety or mental anguish.

          (h) Sexual harassment.

          (i) Defamation based on statements to Al Sirkin or others.

          (j) Breach of an express or implied employment contract, change in
control contract or other agreement.

          (k) Compensation or reimbursement of Al Sirkin.

          (l) Unfair employment practices.

          (m) Any act or omission by or on behalf of Bactolac, ANI or any of
              their affiliates.

     7.   Claims Included.  The Claims released and waived by Al Sirkin include
          ---------------
claims:

          (a) Arising before the date of this Agreement.

          (b) Arising on or after the date of this Agreement that relate to Al
Sirkin's employment by Bactolac.

          (c) That are presently known, suspected, unknown or unsuspected by Al
Sirkin.

          (d) For reinstatement or future employment;.

          (e) For actual, consequential, punitive or special damages.

          (f) For attorneys' fees, costs, experts' fees and other expenses of
investigating, litigating or settling Claims.

                                      -3-
<PAGE>

          (g) Against ANI, Bactolac and their respective affiliates, employees,
officers, directors, agents, attorneys and contractors.

      8.  Agreement Not To Sue of Al Sirkin.  Al Sirkin waives any right to file
          ---------------------------------
suit for any Claim.  Al Sirkin will not sue Bactolac, ANI or any of their
affiliates for any Claim.  Al Sirkin will not initiate or proceed with any other
action or proceeding against Bactolac, ANI or any of their affiliates that
relates to something that could give rise to a Claim.

     9.   Agreement Not To Sue of ANI.  ANI waives any right to file suit for
          ---------------------------
any Claim.  ANI will not sue Al Sirkin for any Claim.  ANI will not initiate or
proceed with any other action or proceeding against Al Sirkin that relates to
something that could give rise to a Claim.

     10.  Mutual Releases.
          ---------------

          (a) ANI and Bactolac release the Sirkins from any and all claims,
demands, causes of action, liabilities, debts and obligations, not embodied in
this Agreement, against the Sirkins, whether known, unknown, actual, contingent,
or of any nature whatsoever, that exist or could exist as of the date of this
Agreement, related to the Merger Agreement or the Merger, the Earnout Agreement,
the Notes or any other matter related to the Merger, except for the Employment
Agreement between Bactolac and Neil Sirkin.

          (b) Al Sirkin and Neil Sirkin release ANI, Bactolac, Nutrition For
Life International, Inc. ("NFLI") and the respective officers, directors,
shareholders, employees, affiliates, agents, representatives, attorneys,
successors and assigns of ANI, Bactolac and NFLI from any and all claims,
demands, causes of action, liabilities, debts and obligations, not embodied in
this Agreement, against ANI and Bactolac, whether known, unknown, actual,
contingent, or of any nature whatsoever, that exist or could exist as of the
date of this Agreement, related to the Merger Agreement or the Merger, the
Earnout Agreement, the Notes, or any other matter related to the Merger, with
the exception of the Employment Agreement between Bactolac and Neil Sirkin.

          (c) Notwithstanding the foregoing mutual releases or any other
provisions in this Agreement, nothing shall preclude ANI, Bactolac or any of
their affiliates from commencing or proceeding against Seymour Glaser and Joan
Mendelson, Trustee who are former shareholders of Ash Corp and who have received
ANI stock and cash at the closing of the Merger and who were parties to the
Earnout Agreement.

     11.  Confidences.  Al Sirkin will maintain the confidentiality of all of
          -----------
the trade secrets, proprietary information, insider information, security
procedures and other confidences of Bactolac and ANI that came into Al Sirkin's
possession or knowledge during employment by Bactolac.  Al Sirkin will not use
such information concerning Bactolac's business prospects or practices to profit
Al Sirkin or others.

     12.  Property.  Al Sirkin represents that all property pertaining to his
          --------
employment by or work with Bactolac, including keys and credit cards, will be
returned to Bactolac at or prior to the Closing.

                                      -4-
<PAGE>

     13.  Entire Agreement; Amendments.  This is the entire agreement concerning
          -----------------------------
the termination of Al Sirkin's employment with Bactolac and ANI.  Al Sirkin is
not entitled to rely on any other written or oral offer or agreement with
Bactolac and ANI.  This Agreement can be modified only by a document signed by
all of the Parties.  Al Sirkin acknowledges that the only promises made to cause
Al Sirkin to sign this Agreement are those stated in this Agreement.

     14.  Successors.  This Agreement benefits and binds the parties' heirs,
          -----------
representatives and successors.

     15.  Governing Law and Severability of Power.  This Agreement will be
          ----------------------------------------
interpreted in accordance with the laws of the State of Delaware.  If any
portion of this Agreement is unenforceable, the remaining portions of the
Agreement will remain enforceable.

     16.  Fees and Costs.  If litigation is commenced concerning Al Sirkin's
          ---------------
employment or this Agreement, the prevailing party shall be entitled to an award
of reasonable attorneys' fees and expenses, court costs, experts' fees and
expenses, and all other expenses of litigation.

     17.  Counterparts.  This Agreement may be executed in counterparts, and
          -------------
each counterpart, when executed, shall have the efficacy of a signed original.
Photographic copies of such signed counterparts may be used in lieu of the
originals for any purpose.

     18.  Revocability.  Either Al Sirkin or Bactolac may revoke this Agreement
          -------------
in its entirety during the seven days following execution of the Agreement by Al
Sirkin.  Any revocation of the Agreement must be in writing and hand-delivered
during the revocation period.  This Agreement will become enforceable seven days
following execution by Al Sirkin, unless it is revoked during the seven-day
period.

     19.  Employee Acknowledgements.  Al Sirkin understands that this Agreement
          -------------------------
is a final and binding waiver of any claims against Bactolac and ANI, and their
respective affiliates, officers, directors, Al Sirkins, agents, attorneys and
contractors.  Al Sirkin acknowledges that he understands that he was given 21
days to consider this Agreement and that he chose to sign this Agreement prior
to the expiration of the 21 day period.  Al Sirkin acknowledges that he has been
told to consult with an attorney regarding signing this Agreement and represents
the he has done so.

ALLAN I. SIRKIN                     ADVANCED NUTRACEUTICALS, INC.

____________________________        By: ___________________________________

Date: July ___, 2001                Date: July ____, 2001

                                      -5-
<PAGE>

NEIL SIRKIN                         BACTOLAC PHARMACEUTICAL INC.

____________________________        By: ___________________________________

Date: July ___, 2001                Date: July ____, 2001

                                      -6-

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