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Exhibit 10.4

2001 PERFORMANCE EQUITY PLAN
INCENTIVE STOCK OPTION AGREEMENT

        THIS AGREEMENT made and entered into as of the [    ]th day of
[                        ] 200[    ] (the "Grant Date"), by Lipid
Sciences, Inc., a Delaware corporation (the "Company"), and
[                        ] (the "Participant") whose signature is set forth on
the signature page hereof.

RECITALS

        WHEREAS, the Company has adopted the Lipid Sciences, Inc. 2001
Performance Equity Plan (the "Plan"), which provides for the grant of incentive
stock options to Employees and other eligible individuals;

        WHEREAS, Participant is an Employee and is in a position to contribute
materially to the continued growth and development and the future financial
success of the Company;

        WHEREAS, the Company wishes to grant to Participant an incentive stock
option to purchase common stock of the Company (the "Common Stock") on the terms
and conditions specified herein to provide a means for the Participant to
participate in the future growth of the Company and to increase the
Participant's incentive and personal interest in the continued success and
growth of the Company; and

AGREEMENT

        NOW, THEREFORE, the parties agree as follows (any capitalized terms used
herein but not defined herein will have the respective meanings given in the
Plan):

        1.     Option.

        (a)   Grant.    Subject to the terms and conditions of this Agreement
and the Plan, the Company hereby grants to Participant an Incentive Stock Option
to purchase all or any part of the shares set forth on the signature page
hereof, at the exercise price set forth on the signature page hereof. The Option
is intended to be an "incentive stock option" as defined in Section 422 of the
Code; provided, however, that to the extent that the aggregate Fair Market Value
(measured on the grant dates) of Common Stock, with respect to which the Option
and all other incentive stock options of the Participant under the Plan and all
other plans of the Company and its parent and subsidiary corporations is
exercisable for the first time by the Participant during any calendar year,
exceeds $100,000, the Option shall be a Nonqualified Stock Option. The incentive
stock options or portions of stock options to be reclassified as Nonqualified
Stock Options are those with the highest option prices.

        (b)   Term.    The term of the Option will expire at 11:59 p.m. on the
date which is 10 years following the date of grant of the Option.

        (c)   Vesting.    Options will vest as to [            ] shares
following the first [            ] continuous months of service with the Company
and the remainder over [            ] years at the rate of [            ] per
[            ] of the total [            ] shares.

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        (d)   [Change of Control.    Notwithstanding the vesting schedule set
forth in Subsection 1(c), effective upon a Change of Control (defined below),
the Option shall become immediately exercisable, and the Participant shall fully
vest in the right to exercise the Option, with respect to 100% of the shares
subject to the Option. For purposes of this Subsection 1(d), a "Change of
Control" means:

        (i)    the acquisition by any individual, entity or group of "beneficial
ownership" (within the meaning of Rule 13d-3 promulgated under the Exchange Act
of 1934) of 30% or more of the then outstanding voting securities of the
Corporation entitled to vote generally in the election of directors or of equity
securities having a value equal to 30% or more of the total value of all equity
securities of the Corporation, provided, however, that the following
acquisitions of shares or other securities shall not constitute a Change of
Control: (A) any acquisition directly from the Corporation of newly issued
equity securities, (B) any acquisition by the Corporation or (C) any acquisition
by an employee benefit plan (or related trust) sponsored or maintained by the
Corporation or any of its Affiliates (as defined in Regulation D under the
Securities Act of 1933);

        (ii)   individuals who as of the effective date of the relevant option
agreement constitute the Corporation's Board (the "Incumbent Board") cease for
any reason to constitute at least a majority of the Corporation's Board, except
that any director whose election or nomination for election was approved by the
vote of at least a majority of directors then comprising the Incumbent Board
shall be considered as though such individual were a member of the Incumbent
Board, but excluding for this purpose any individual whose initial assumption of
office occurs as the result of either an actual or threatened election contest
or other actual or threatened solicitation of proxies or consents by or on
behalf of a person other than the Corporation's Board;

        (iii)  there occurs a reorganization, merger, consolidation, share
exchange or other corporate transaction involving the Corporation or an
Affiliate (a "Transaction"), in each case with respect to which the persons who
have beneficial ownership, directly or indirectly, of all of the combined voting
power of the Corporation immediately prior to such Transaction do not,
immediately after the Transaction, have beneficial ownership, directly or
indirectly, of more than 50% of the combined voting power of the Corporation or
other corporation resulting from such Transaction;

        (iv)  assets having a value of more than 50% of the value of all of the
Corporation's assets, taken as a whole, are sold, liquidated or distributed in
one or more transactions;

        (v)   the liquidation or dissolution of the Corporation; or

        (vi)  the occurrence of any other transaction or event that the
Committee specifies, either before or after the occurrence of such transaction
or event, constitutes a "Change of Control".]

        2.     Exercise.    The Option may not be exercised prior to the date it
is vested or after the expiration date. Participant may, subject to the
limitations of this Agreement and the Plan, exercise all or any portion of the
Option that has vested pursuant to Section 1 hereof by providing written notice
of exercise to the Company specifying the number of shares with respect to which
the Option is being exercised and accompanied by payment of the exercise price
for such shares. The exercise price will be paid in cash, by certified check or
cashier's check payable to the Company, or by the surrender of a whole number of
previously owned shares (free of all adverse claims and duly endorsed in blank
by Participant or accompanied by stock powers duly endorsed in blank) having a
Fair Market Value on the date of exercise equal to the exercise price, or by the
surrender through a broker assisted cashless exercise program of the
unexercised, vested portion of the Option as to which the Spread (as hereinafter
defined) is equal to the exercise price, or any combination of the foregoing.

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"Spread" means the Fair Market Value on the date of exercise of the underlying
shares less the exercise price. Participant will also be required to submit a
completed exercise agreement on a form approved by the Company. No portion of
the Option may be exercised after it has expired pursuant to Section 1 hereof.

        3.     Withholding.    If any part of this Option is not permitted to be
an Incentive Stock Option under the Code, then the Participant agrees to pay to
the Company such amount as is requested by the Company for the purpose of
satisfying the Company's obligation to withhold federal, state or local taxes in
connection with any exercise of any non-qualified portion of this Option. The
Participant may elect to satisfy such withholding obligation, in whole or in
part, (a) by causing the Company to withhold shares otherwise issuable pursuant
to the exercise of the Option or (b) by delivering to the Company shares already
owned by the Participant. The shares so delivered or withheld will be a whole
number, have a Fair Market Value that shall not exceed the amount determined by
the applicable minimum statutory withholding rates as of the date that the
amount of tax to be withheld is to be determined, will be free of all adverse
claims, and will be duly endorsed in blank by Participant or accompanied by
stock powers duly endorsed in blank.

        4.     Non-transferability.    Participant will have no rights to sell,
assign, transfer, pledge, or otherwise alienate the Option under this Agreement,
except by will or by the laws of descent, and any such attempted sale,
assignment, transfer, pledge or other conveyance will be null and void. The
Option will be exercisable during the Participant's lifetime only by the
Participant (or his or her legal representative).

        5.     Adjustments upon Changes in Capitalization.    The number, kind
and class of shares of Common Stock subject to this Option and the Exercise
Price shall be equitably adjusted, substituted or converted in the event of a
stock split, stock dividend, recapitalization, reorganization, merger,
consolidation, extraordinary dividend, split-off, spin-off, combination,
exchange of shares or other similar corporate event affecting the Common Stock,
in any case, in order to preserve the benefits or potential benefits intended to
be made available to the Participant hereunder. The foregoing adjustments shall
be made by the Committee, the determination of which as to whether and which
adjustments shall be made, and the extent thereof, shall be final, binding and
conclusive on all parties affected thereby.

        6.     Beneficiary.    The person whose name appears on the signature
page hereof after the caption "Beneficiary" or any successor designated by
Participant in accordance herewith (the person who is Participant's Beneficiary
at the time of his or her death is referred to as the "Beneficiary") will be
entitled to exercise the Option, to the extent it is exercisable, after the
death of Participant. Participant may from time to time revoke or change his or
her Beneficiary designation without the consent of any prior Beneficiary by
filing a new designation with the Board of Directors. The last such designation
received by the Board of Directors will be controlling; provided, however, that
no designation, or change or revocation thereof, will be effective unless
received by the Board of Directors prior to Participant's death, and in no event
will any designation be effective as of a date prior to such receipt. If no
Beneficiary designation is in effect at the time of Participant's death, or if
no designated Beneficiary survives Participant or if such designation conflicts
with law, Participant's estate will be entitled to exercise the Option, to the
extent it is exercisable after the death of Participant. If the Board of
Directors is in doubt as to the right of any person to exercise the Option, the
Company may refuse to recognize such exercise, without liability for any
interest or dividends on the underlying shares, until the Board of Directors
determines the person entitled to exercise the Option, or the Company may file
an interpleader action with any court of appropriate jurisdiction and such
application will be a complete discharge of the liability of the Company
therefore.

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        7.     Limited Interest.

        (a)   The grant of the Option will not be construed as giving
Participant any interest other than as provided in this Agreement.

        (b)   Participant will have no rights as a shareholder as a result of
the grant of the Option, until the Option is exercised, the exercise price is
paid, and the shares are issued thereunder.

        (c)   The grant of the Option will not confer on Participant any right
to continue as an employee, nor interfere in any way with the right of the
Company to terminate the Participant's employment at any time.

        (d)   The grant of the Option will not affect in any way the right or
power of the Company to make or authorize any or all adjustments,
recapitalizations, reorganizations, or other changes in the Company's capital
structure or its business, or any merger, consolidation or business combination
of the Company, or any issuance or modification of any term, condition, or
covenant of any bond, debenture, debt, preferred stock or other instrument ahead
of or affecting the shares or the rights of the holders thereof, or the
dissolution or liquidation of the Company, or any sale or transfer of all or any
part of its assets or business or any other Company act or proceeding, whether
of a similar character or otherwise.

        8.     Incorporation by Reference.    The terms of the Plan to the
extent not stated herein are expressly incorporated herein by reference and in
the event of any conflict between this Agreement and the Plan, the Plan will
govern.

        9.     Entire Agreement.    This Agreement and the Plan constitute the
entire contract between the parties hereto with regard to the subject matter
hereof. They supersede all other agreements, representations or understandings
(whether oral or written and whether express or implied) that relate to the
subject hereof.

        10.   Notices.    Any notice required by the terms of this Agreement
shall be given in writing and shall be deemed effective upon personal delivery
or upon deposit with the United States Postal Service, by registered or
certified mail, with postage and fees prepaid. Notice shall be addressed to the
Company at its principal executive office and to the Participant at the address
that he or she most recently provided to the Company.

        11.   Governing Law.    This Agreement will be governed by and construed
in accordance with the laws of the State of California.

        12.   Amendment.    This Agreement may not be amended, modified,
terminated or otherwise altered except by the written consent of the parties
hereto.

        13.   Counterparts.    This Incentive Stock Option Agreement may be
executed in one or more counterparts, each of which will be deemed to be an
original but all of which together will constitute one and the same instrument.

        14.   Successors and Assigns.    Except to the extent otherwise provided
in Section 4 hereof, the provisions of this Agreement shall inure to the benefit
of, and be binding upon, the Company and its successors and assigns and the
Participant, the Participant's assigns and the legal representatives, heirs and
legatees of the Participant's estate.

        IN WITNESS WHEREOF, the Company has caused this instrument to be
executed by its duly authorized officer and its corporate seal hereunto affixed,
and the Participant has hereunto affixed his or her hand, all on the day and
year set forth below.

[REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

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    LIPID SCIENCES, INC.
Date:             
 
By:
 

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S. Lewis Meyer Ph.D.
President/CEO
("Company")
Date:             
 
 
 

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[Participant Name]
("Participant")

No. of Shares: [            ]   Grant Date: [            ]
Exercise Price Per Share: $[            ]
 
Initial Exercise Date: [            ]
Beneficiary: [            ]
 
Option Expiration Date: [            ]
Beneficiary Tax Identification No.:
 
Address of Beneficiary:
[                              ]
 
[                              
 
 
                              ]

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