1
          As filed with the Securities and Exchange Commission on April 25, 1995
                                                       Registration No. 33-88972

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                 ---------------
                                 AMENDMENT NO. 1

                                       TO
                                    FORM S-3

                             REGISTRATION STATEMENT

                                      UNDER
                           THE SECURITIES ACT OF 1933

                                 ---------------
                         ADVANCED POLYMER SYSTEMS, INC.
             (Exact name of registrant as specified in its charter)

             DELAWARE                                94-2875566
 (State or other jurisdiction of           (I.R.S. employer identification
  incorporation or organization)                        number)

        3696 HAVEN AVENUE, REDWOOD CITY, CALIFORNIA 94063 (415) 366-2626
          (Address, including zip code, and telephone number, including
             area code, of registrant's principal executive offices)

                             MICHAEL P.J. O'CONNELL
                3696 HAVEN AVENUE, REDWOOD CITY, CALIFORNIA 94063

 (Name, address, including zip code, and telephone number, including area code,
                              of agent for service)

            with copies of all orders, notices and communications to:

                                Richard A. Peers
                        Heller, Ehrman, White & McAuliffe
        525 University Avenue, Palo Alto, California 94301 (415) 326-7600
                                 ---------------
                  APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED
                SALE TO THE PUBLIC: As soon as practicable after
                  the Registration Statement becomes effective.

                                 ---------------
              If the only securities being registered on this Form
               are being offered pursuant to dividend or interest
             reinvestment plans, please check the following box. [ ]

                                 ---------------
    If any of the securities being registered on this Form are to be offered
           on a delayed or continuous basis pursuant to Rule 415 under
               the Securities Act of 1933, other than securities
                    offered only in connection with dividend
          or interest reinvestment plans, check the following box. [x]

                                 ---------------
                         CALCULATION OF REGISTRATION FEE



                                       Amount         Proposed Maximum        Proposed Maximum            Amount of
    Title of Each Class of             to be           Offering Price        Aggregate Offering         Registration
 Securities to be Registered         Registered          Per Share                 Price                     Fee
                                                                                            
Common Stock, $.01 par value           642,056          $4.125  (1)          $2,648,481.00 (1)          $  913.27 (1)

Common Stock, $.01 par value           331,778          $4.973  (2)          $1,649,932.00 (2)          $  568.95 (3)

Common Stock, $.01 par value           310,278          $5.318  (2)          $1,650,058.00 (2)          $  568.99

                       TOTAL:        1,284,112               -               $5,948,471.00              $2,051.21 (4)


(1) Estimated solely for purpose of computing the amount of the registration fee
    based on the average of the high and low prices of the Common Stock on the
    Nasdaq National Market on April 21, 1995, as reported in The Wall Street
    Journal. Of such portion of the registration fee, $529.13 was previously
    paid.

(2) Calculated using as the offering price the exercise price of warrants
    pursuant to which such shares may be issued by the Registrant.

(3) Previously paid.

(4) Of this amount, $1,098.08 was previously paid.


   2



PROSPECTUS         1,284,112 SHARES, INCLUDING 642,056 SHARES
                   BEING SOLD BY THE SELLING STOCKHOLDERS AND
               642,056 SHARES ISSUABLE ON EXERCISE OF OUTSTANDING
                 WARRANTS TO PURCHASE COMMON STOCK AT A PRICE OF
                   $4.97 and $5.32 PER SHARE (THE "WARRANTS")

                         ADVANCED POLYMER SYSTEMS, INC.

         Of the 1,284,112 shares (the "Shares") of Common Stock, $.01 par value,
(the "Common Stock") of Advanced Polymer Systems, Inc. (the "Company" or "APS")
covered by this prospectus (the "Prospectus), 642,056 Shares may be sold by the
Company on exercise of warrants ("Warrants") to purchase Common Stock and
642,056 Shares may be sold by the holders of the Shares (collectively, the
"Selling Stockholders") named in this Prospectus. See "Selling Stockholders."
The Company will not receive any of the proceeds from the sale of Shares by the
Selling Stockholders; however, the Company could receive up to $3,299,990 on the
exercise of the Warrants.

         The Company has not made any underwriting arrangements with respect to
the Shares issuable on exercise of the Warrants. The Company's Common Stock is
traded on the Nasdaq National Market under the symbol "APOS". On April 21, 1995,
the closing price for the Common Stock, as reported on the Nasdaq National
Market, was $4 1/8.

         Shares covered by this Prospectus may be offered for sale from time to
time by the Selling Stockholders at such prices and on such terms as may then be
obtainable, in negotiated transactions, or otherwise. See "Plan of
Distribution." This Prospectus may be used by the Selling Stockholders or by any
broker-dealer who may participate in sales of securities covered hereby. The
Selling Stockholders and the brokers and dealers through whom such sales are
effected may be deemed to be underwriters under the Securities Act of 1933, as
amended (the "Securities Act"). The Selling Stockholders will pay all
commissions, transfer taxes, and other expenses associated with the sales of
securities by them. The Company has paid the expenses of the preparation of this
Prospectus. The Company has agreed to indemnify the Selling Stockholders against
certain liabilities, including liabilities arising under the Securities Act.

         APS has filed with the Securities and Exchange Commission (the
"Commission") a Registration Statement under the Securities Act with respect to
the securities offered by this Prospectus. As permitted by the rules and
regulations of the commission, this Prospectus does not contain all of the
information set forth in the Registration Statement and the exhibits and
schedules thereto. For further information with respect to APS and the
securities offered hereby, reference is made to the Registration Statement and
the exhibits thereto, which may be examined without charge at the public
reference facilities maintained by the Commission at Judiciary Plaza, 450 Fifth
Street, N.W., Washington, D.C. 20549, and copies of which may be obtained from
the Commission upon payment of the prescribed fees.

                                -----------------

            SECURITIES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK.
                              (See "RISK FACTORS.")

                                -----------------

          THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
      SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
     NOR HAS THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
       COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
            ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

                                -----------------

                  The date of this Prospectus is April 25, 1995


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         No dealer, salesman, or any other person has been authorized to give
any information or to make any representations or projections of future
performance other than those contained in this Prospectus, and any such other
information, projections, or representations, if given or made, must not be
relied upon as having been so authorized. The delivery of this Prospectus or any
sale hereunder at any time does not imply that the information herein is correct
as of any time subsequent to its date. This Prospectus does not constitute an
offer to sell or a solicitation of an offer to buy any of the securities offered
hereby in any jurisdiction where, and to any person to whom, it is unlawful to
make such offer or solicitation.

                              AVAILABLE INFORMATION

         This Prospectus omits certain of the information contained in the
Registration Statement covering the Common Stock that is on file with the
Securities and Exchange Commission (the "Commission"). The Company is subject to
the informational requirements of the Securities Exchange Act of 1934, as
amended (the "1934 Act") and in accordance therewith files reports, proxy
statements and other information with the Commission. Such Registration
Statement, reports, proxy statements and other information can be inspected and
copied at public reference facilities maintained by the Commission at Judiciary
Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549. Copies of such material
can be obtained at prescribed rates from the Public Reference Section of the
Commission at such address. Such reports, proxy statements and other information
can also be inspected at the Commission's regional offices at 7 World Trade
Center, Suite 1300, New York, New York 10048 and 500 West Madison, Chicago,
Illinois 60661, and at the offices of the Nasdaq Stock Market at 9513 Key West
Avenue, Rockville, Maryland 20850-3389.

                       DOCUMENTS INCORPORATED BY REFERENCE

         There are hereby incorporated in this Prospectus by reference the
following documents filed pursuant to the 1934 Act: (i) the Company's Annual
Report on Form 10-K for the fiscal year ended December 31, 1994, including the
financial statements as of and for the period ended December 31, 1994 included
therein, (ii) the Company's Proxy Statement for the Annual Meeting of
Shareholders held on June 8, 1994; and (iii) the description of the Company's
securities contained in its form 8-A Registration Statements filed pursuant to
Section 12 of the 1934 Act.

         All documents filed by the Company pursuant to Section 13(a), 13(c), 14
or 15(d) of the 1934 Act after the date of this Prospectus and prior to the
termination of the offering of the securities offered hereby shall be deemed to
be incorporated by reference in this Prospectus.

         The Company hereby undertakes to provide without charge to each person,
including any beneficial owner, to whom a copy of this Prospectus has been
delivered, upon the written or oral request of such person, a copy of any or all
of the documents referred to above which have been or may be incorporated in
this Prospectus by reference, other than exhibits to such documents which are
not specifically incorporated by reference into the information that this
Prospectus incorporates. Requests for such copies should be directed to:
Advanced Polymer Systems, Inc., 3696 Haven Avenue, Redwood City, California
94063, Attention: Investor Relations, Telephone: (415) 366-2626.

                                       -2-


   4



                               RECENT DEVELOPMENTS

         The Company has recently filed two new drug applications (each an
"NDA") with the U.S. Food and Drug Administration. The first NDA covers a
melanin-based sunscreen product for the Company's own portfolio and the other
NDA covers a prescription acne preparation licensed to Ortho McNeil
Pharmaceuticals (a Johnson & Johnson subsidiary).

         During the second, third and fourth quarters of 1994 and the first
quarter of 1995, the Company received cash investments of $11 million. The
investments consisted of the following items: In May 1994, Johnson & Johnson
("J&J") invested $5 million in newly issued APS Common Stock through Johnson &
Johnson Development Corporation and received a two-year warrant to purchase
additional shares. This investment increased J&J's equity interest in the
Company to approximately 11% of the Company's outstanding Common Stock. In June,
September and December, 1994, and March, 1995 the Company received an aggregate
of $6.0 million pursuant to an agreement with a group of investors for the sale
of Common Stock and warrants.

                                  RISK FACTORS

         The Shares of Common Stock offered hereby by the Selling Stockholders
involve a high degree of risk and prospective purchasers should carefully
consider the following factors.

         History of Losses. As restated to reflect the pooling-of-interests with
Premier, Inc., which the Company acquired in April 1993, the Company has
incurred cumulative losses through December 31, 1994 of approximately $53
million and anticipates that losses will continue for at least the next 12
months as the Company continues research, development, production and marketing
activities. There can be no assurance that future revenues from product sales
will be significant or that the Company will be able to sell products at a
profit.

         Capital Resources. On December 31, 1994, the Company had $4.5 million
in cash, cash equivalents and short-term marketable securities. In addition, the
Company received a milestone payment of $1.5 million in the first quarter of
1995 from Ortho McNeil Pharmaceuticals on the filing of an NDA, as well as $1.5
million in March 1995 from the fourth funding under the private placement
announced in the second quarter of 1994.

         In 1994, cash of approximately $3 million was expended with regard to
Phase III clinical tests of tretinoin entrapped in a Microsponge(R) delivery
system for the treatment of acne and ProZone, APS' Melanosponge product,
together with related research and development costs, all of which should
decrease substantially in 1995. The Company's existing cash, cash equivalents
and short-term marketable securities, collections of trade accounts receivable,
interest income and other revenue producing activities, are expected to be
sufficient to meet the Company's near-term cash requirements assuming no changes
to existing business plans. However, if the Company's costs are higher than
expected or revenues do not meet expectations, the Company may have to pursue
other opportunities to generate additional cash to sustain and develop its
business, including joint ventures, licensing and other debt and equity
financings. If such additional funding is required, but is unavailable on
commercially reasonable terms, the Company would have to significantly reduce
operating expenses, which could adversely affect operations.

         New Technology; No Proof of Market Acceptance. The Company's
Microsponge(R) products are based on relatively new technologies. The Company
has successfully entrapped numerous ingredients and agents (such as sunscreens,
moisturizers, fragrances and oils) and believes its products provide greater
efficacy and increased functionality. However, commercialization of products
utilizing the Company's Microsponge delivery systems is only now beginning, and
there can be no assurance that such products will be successfully commercialized
by the Company or others.

         Marketing. The Company is utilizing a combination of collaboration
agreements and independent efforts to market its Microsponge products. The
collaborative arrangements are intended to provide APS with the marketing
expertise and/or financial strength of other companies. There can be no
assurance that such collaborative arrangements will prove successful in
marketing products on behalf of the Company. The Company markets four of its own
consumer products, as well as several consumer products produced by Johnson &
Johnson Consumer

                                       -3-


   5



Products, Inc. ("Johnson & Johnson"), through its wholly owned subsidiary
Premier, Inc. ("Premier") which the Company acquired in April 1993. Premier has
had a limited history in marketing certain over-the-counter drug and toiletry
products, and there can be no certainty that Premier will be able to continue to
successfully market products produced by the Company or others.

         Seasonality. The business of Premier is highly seasonal. Currently, it
principally markets and distributes sunscreen products, the sales of which are
heavily weighted to the first two fiscal quarters. Consequently, results of
operations for these interim periods are not necessarily indicative of results
for the full fiscal year.

         Dependence on Key Employees. The Company's developments to date and in
the future depend greatly on the efforts of key management and technical
employees. The loss of any of these key contributors could have an adverse
impact on the progress of the Company's business.

         Dependence on Supplier. The Company has an exclusive marketing
arrangement with Johnson & Johnson for two sunscreen product lines, and has
further licensed a makeup remover from Johnson & Johnson. The sunscreen product
lines accounted for more than 36% of the Company's product revenues during 1994.
If Johnson & Johnson were to terminate the arrangement or these products were
otherwise to become unavailable to the Company, its results would be adversely
affected.

         Inventory Build-Up. The Company's exclusive distribution arrangement
with Johnson & Johnson requires Premier to increase inventory levels at the
beginning of each year sufficient to satisfy anticipated demand for sunscreen
products during the selling season. Extended terms are given to the Company on
these products by Johnson & Johnson so that accounts payable are not due until
the third fiscal quarter. The Company offers similar extended terms to
retailers, and anticipates paying amounts owed to Johnson & Johnson from retail
accounts receivable. If the Company is unable to collect the retail accounts
receivable in a timely fashion, it may encounter difficulty in paying Johnson &
Johnson and its operating results would be adversely affected.

         Government Regulation. Certain of the Company's products are subject to
regulation by numerous national and local governmental authorities in the United
States and by like regulatory authorities in other countries where the Company
intends to test and market pharmaceutical products that it may develop. The
regulatory process, which includes preclinical testing and clinical trials to
establish product safety and efficacy, can take many years and require the
expenditure of substantial resources. There can be no assurance that even after
such time and expenditure, regulatory agency approvals will be obtained.
Moreover, if regulatory agency approval of a product is granted, such approval
may entail limitations on the indicated uses for which the product may be
marketed. Further, even if such regulatory approval is obtained, a marketed
product and its manufacture are subject to continued review by regulatory
authorities.

         In addition, although personal care products are not currently subject
to active regulation by the FDA in the same manner as pharmaceutical products,
more extensive regulation could occur in the future. Such regulation could
impose additional costs on the Company or slow the introduction of personal care
products utilizing the Company's delivery systems.

         Competition, Markets and Technological Change. Other companies are
developing products based on enhanced delivery technologies for cosmetic,
therapeutic and industrial applications, and technological developments are
expected to occur at a rapid pace. There can be no assurance that other
technologies will not prove superior to the Company's technology. APS is in
competition with other companies that possess greater financial and technical
resources, manufacturing and marketing capabilities, and experience in testing
and obtaining any necessary regulatory approval. The Company also competes with
many companies, most with greater financial resources, in marketing
over-the-counter personal care products.

         Manufacturing. Products utilizing the Company's Microsponge delivery
systems must be manufactured at a competitive cost in far greater quantities
than now produced by the Company. The Company has a manufacturing facility in
Lafayette, Louisiana, and research laboratory and pilot plant facilities in
Lafayette, Louisiana and in Redwood City, California. The Company's
manufacturing capacity is currently 750,000 to 1,000,000 pounds a year, but
successful commercialization of certain products may require manufacturing in
quantities exceeding the Company's current capacity. The Company believes it can
increase its manufacturing capacity through

                                       -4-


   6



installation of additional equipment, but there can be no assurance that the
Company will be able to achieve the requisite increase in manufacturing capacity
within the time and at a cost commensurate with effective product
commercialization.

         Patents and Trade Secrets. There can be no assurance that any patents
owned or controlled by APS will provide commercially significant protection of
the Company's technology or ensure that the Company may not be determined to
infringe valid patents of others. The Company's patents have not been tested in
court, and the validity and scope of the Company's proprietary rights could be
challenged. The Company has also received foreign patents, but since the patent
laws of foreign countries differ from those of the United States, the degree of
protection afforded by any foreign patents may be different from that available
under U.S. patent laws.

         The Company also relies on trade secrets and proprietary know-how which
it seeks to protect by confidentiality agreements with its collaborators,
employees and consultants. There can be no assurance that these agreements will
not be breached, that the Company will have adequate remedies for any breach or
that the Company's trade secrets and proprietary know-how will not otherwise
become known or be discovered by competitors.

         Possible Volatility of Stock Price; Shares Eligible for Future Sale.
The market price of the Company's Common Stock has been and may continue to be
highly volatile. Future events, many of which will be beyond the control of the
Company, as well as expected quarterly fluctuations in revenues and financial
results, may have a significant impact on the market price of the Company's
Common Stock. Future sales of Shares by the Selling Stockholders or by other
current stockholders and by option holders and warrant holders who exercise
Company stock options or warrants could have a depressive effect on the market
price of the Company's Common Stock.

         Reliance on Collaborators. The Company has entered into collaborative
agreements with certain major corporations pursuant to which such companies are
entitled to certain product and marketing rights. The Company also expects to
rely, at least in part, on additional collaborative agreements to develop and
commercialize certain future products. There can be no assurance that the
Company will be able to negotiate acceptable collaborative agreements in the
future, or that the Company's existing collaborative agreements or such future
collaborative agreements will be successful.

                                 USE OF PROCEEDS

         The Company will not receive any of the proceeds from the sale of the
Shares by the Selling Stockholders. The Company could receive up to $3,299,990
if the Warrants are exercised in full. No assurance can be given that any of the
Warrants will be exercised. The Company expects that any net proceeds from the
exercise of the Warrants will be used for working capital and general corporate
purposes, including product development and marketing. Pending utilization, such
funds will be invested in money market and other short-term interest bearing
obligations.

                                       -5-


   7



                              SELLING STOCKHOLDERS

         The following table sets forth certain information regarding beneficial
ownership of the Company's Common Stock by the Selling Stockholders as of March
30, 1995 and as adjusted to reflect the sale by Selling Stockholders of Shares
offered by this Prospectus.



                                          Common Stock                                      Common Stock
                                       Beneficially Owned             Common             Beneficially Owned
                                     Prior to Offering (1)            Stock                After Offering
                                                                      to be
                                      Number            Percent        Sold             Number            Percent
                                      ------            -------        ----             ------            -------

                                                                                            
 Ortelius, L.P.  . . . . .        1,095,836 (2)           6.5%       321,028         774,808 (2)(3)        4.6%
 GDK, Inc.   . . . . . . .        1,096,736 (2)           6.5%       321,028         775,708 (2)(4)        4.6%
                                  ---------              ----        -------       ---------               ---
                     TOTAL:       2,192,572              12.4%       642,056       1,550,516               8.8%


- --------------------

(1)      Applicable percentage of ownership is based on 16,094,121 shares of
         Common Stock outstanding as of March 30, 1995.

(2)      Includes shares issuable on exercise of warrants to purchase an
         aggregate of 617,718 shares of Common Stock at prices of $4.97, $5.52,
         $5.61 and $5.32 per share.

(3)      453,780 of such shares of Common Stock are the subject of a
         Registration Statement on Form S-3 (33-82562).

(4)      454,680 of such shares of Common Stock are the subject of a
         Registration Statement on Form S-3 (33-82562).


                                       -6-


   8



                              PLAN OF DISTRIBUTION

         All or a portion of the Shares of Common Stock offered hereby by the
Selling Stockholders may be delivered and/or sold in transactions from time to
time on the over-the-counter market at prices prevailing at the time, at prices
related to such prevailing prices or at negotiated prices and/or may also be
used to cover any short positions previously established. The Selling
Stockholders may effect such transactions by selling to or through one or more
broker-dealers, and such broker-dealers may receive compensation in the form of
underwriting discounts, concessions or commissions from the Selling
Stockholders. The Selling Stockholders and any broker-dealers that participate
in the distribution may under certain circumstances be deemed to be
"underwriters" within the meaning of the Securities Act, and any commissions
received by such broker-dealers and any profits realized on the resale of Shares
by them may be deemed to be underwriting discounts and commissions under the
Securities Act. The Selling Stockholders may agree to indemnify such
broker-dealers against certain liabilities, including liabilities under the
Securities Act. In addition, the Company has agreed to indemnify the Selling
Stockholders with respect to the Shares offered hereby against certain
liabilities, including, without limitation, certain liabilities under the
Securities Act, or, if such indemnity is unavailable, to contribute toward
amounts required to be paid in respect of such liabilities.

         Any broker-dealer participating in such transactions as agent may
receive commissions from the Selling Stockholders (and, if they act as agent for
the purchaser of such Shares, from such purchaser). Broker-dealers may agree
with the Selling Stockholders to sell a specified number of Shares at a
stipulated price per share, and, to the extent such a broker-dealer is unable to
do so acting as agent for the Selling Stockholders, to purchase as principal any
unsold Shares at the price required to fulfill the broker-dealer commitment to
the Selling Stockholders. Broker-dealers who acquire Shares as principal may
thereafter resell such Shares from time to time in transactions (which may
involve crosses and block transactions and which may involve sales to and
through other broker-dealers, including transactions of the nature described
above) in the over-the-counter market, in negotiated transactions or otherwise
at market prices prevailing at the time of sale or at negotiated prices, and in
connection with such resales may pay to or receive from the purchasers of such
Shares commissions computed as described above. To the extent required under the
Securities Act, a supplemental prospectus will be filed, disclosing (a) the name
of any such broker-dealers, (b) the number of Shares involved, (c) the price at
which such Shares are to be sold, (d) the commissions paid or discounts or
concessions allowed to such broker-dealers, where applicable, (e) that such
broker-dealers did not conduct any investigation to verify the information set
out or incorporated by reference in this prospectus, as supplemented, and (f)
other facts material to the transaction.

         The Selling Stockholders will pay all commissions, transfer taxes, and
other expenses associated with the sale of securities by them. The Shares
offered hereby are being registered pursuant to contractual obligations of the
Company, and the Company has paid the expenses of the preparation of this
Prospectus. The Company has not made any underwriting arrangements with respect
to the sale of Shares offered hereby on exercise of the Warrants. Upon exercise
of Warrants, the Shares will be issued by the Company directly to the persons
exercising the Warrants.

                          DESCRIPTION OF CAPITAL STOCK

         As of the date of this Prospectus, the authorized capital stock of the
Company consists of 50,000,000 shares of $0.01 par value Common Stock ("Common
Stock") and 2,500,000 shares of $0.01 par value Preferred Stock ("Preferred
Stock").

COMMON STOCK

         As of March 30, 1995, there were 16,094,121 shares of Common Stock
outstanding held of record by 690 stockholders. The holders of Common Stock are
entitled to one vote for each share held of record on all matters submitted to a
vote of the stockholders. Subject to preferences that may be applicable to any
outstanding Preferred Stock, holders of Common Stock are entitled to receive
ratably such dividends as may be declared by the Board of Directors out of funds
legally available therefor. In the event of a liquidation, dissolution or
winding up of the Company, holders of Common Stock are entitled to share ratably
in all assets remaining after payment of liabilities and the liquidation
preference of any outstanding Preferred Stock. Holders of Common Stock have no

                                       -7-


   9



preemptive rights, no right to convert their Common Stock into any other
securities, and no right to vote cumulatively for the election of directors. The
outstanding shares of Common Stock are fully paid and nonassessable.

         The Company has not paid cash dividends on its Common Stock and does
not plan to pay any such dividends in the foreseeable future. Under certain
lending agreements, the Company is restricted from declaring or paying dividends
on its Common Stock.

PREFERRED STOCK

         The Board of Directors may authorize the issuance of up to 2,500,000
shares of Preferred Stock in one or more series and fix the rights, preferences,
privileges and restrictions thereof, including dividend rights, conversion
rights, voting rights, terms of redemption, liquidation preferences and the
number of shares constituting any series or the designation of such series,
without any further vote or action by the stockholders. The issuance of
Preferred Stock may have the effect of delaying, deferring or preventing a
change in control of the Company without action by the shareholders and could
adversely affect the rights and powers, including voting rights, of the holders
of Common Stock. In certain circumstances, the issuance of Preferred Stock could
depress the market price of Common Stock. There are no shares of Preferred Stock
outstanding and the Company has no present plans to issue any such shares of
Preferred Stock.

WARRANTS

         Of the 1,284,112 Shares offered hereby, an aggregate of 642,056 Shares
are issuable upon exercise of warrants to purchase Common Stock held by the
Selling Stockholders issued by the Company in December 1994 and March, 1995 (the
"Warrants"). The exercise prices of the Warrants are $4.97 per share as to
331,778 shares and $5.32 per share as to 310,278 shares. The Warrants will
remain exercisable until December 30, 1997 (as to 331,778 shares) and March 30,
1998 (as to 310,278 shares), except under certain circumstances. The exercise
price of the Warrants is subject to adjustment (i) in the event there is a
subdivision or combination of the outstanding shares of Company Common Stock or
(ii) if the Company declares dividends on its Common Stock payable in Common
Stock or other securities of the Company.

                                  LEGAL MATTERS

         The legality of the issuance of the securities being offered hereby is
being passed upon for the Company by Heller, Ehrman, White & McAuliffe, Palo
Alto, California. Mr. Julian Stern, a member of Heller, Ehrman, White &
McAuliffe, who is also the Secretary of the Company, owns beneficially 179,000
shares of Common Stock (including options and warrants).

                                     EXPERTS

         The consolidated financial statements and schedules of Advanced Polymer
Systems, Inc. as of December 31, 1994 and 1993 and for each of the years in the
three-year period ended December 31, 1994 incorporated by reference herein have
been incorporated herein in reliance upon the report of KPMG Peat Marwick LLP,
independent certified public accountants, incorporated by reference herein, and
upon the authority of said firm as experts in accounting and auditing. To the
extent that KPMG Peat Marwick LLP audits and reports on consolidated financial
statements of Advanced Polymer Systems, Inc. issued at future dates, and
consents to the use of their report thereon, such consolidated financial
statements also will be incorporated by reference in the Registration Statement
in reliance upon their report and said authority.

                                       -8-


   10



                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

         The following table sets forth various expenses in connection with the
sale and distribution of the securities being registered. All of the amounts
shown are estimates except for the Securities and Exchange Commission
Registration Fee.


                                                                                                                       
 Securities and Exchange Commission Registration Fee   . . . . . . . . . . .           $ 2,051.21
 Accounting Fees   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .             5,000.00
 Legal Fees and Disbursements  . . . . . . . . . . . . . . . . . . . . . . .             5,000.00
 Miscellaneous   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .             2,948.79
                                                                                       ----------
                                                                       TOTAL:          $15,000.00
                                                                                       ==========


ITEM 15. INDEMNIFICATION OF OFFICERS AND DIRECTORS.

         The registrant has the power to indemnify its officers and directors
against liability for certain acts pursuant to Section 145 of the General
Corporation Law of the State of Delaware. Section B of Article VI of the
registrant's Certificate of Incorporation provides:

         "(1) Right to Indemnification. Each person who was or is made a
              ------------------------
   party or is threatened to be made a party to or is involved in any action,
   suit or proceeding, whether civil, criminal, administrative or investigative
   (hereinafter a "proceeding"), by reason of the fact that he or she, or a
   person of whom he or she is the legal representative, is or was a director or
   officer, of the Corporation or is or was serving at the request of the
   Corporation, as a director, officer, employee or agent of another corporation
   or of a partnership, joint venture, trust or other enterprise, including
   service with respect to employee benefit plans, whether the basis of such
   proceeding is alleged action in an official capacity as a director, officer,
   employee or agent or in any other capacity while serving as a director,
   officer, employee or agent, shall be indemnified and held harmless by the
   Corporation to the fullest extent authorized by the General Corporation Law
   of the State of Delaware, as the same exists or may hereafter be amended
   (but, in the case of any such amendment, only to the extent that such
   amendment permits the Corporation to provide broader indemnification rights
   than said law permitted the Corporation to provide prior to such amendment),
   against all expense, liability and loss (including attorneys' fees,
   judgments, fines, ERISA excise taxes or penalties and amounts paid or to be
   paid in settlement) reasonably incurred or suffered by such person in
   connection therewith and such indemnification shall continue as to a person
   who has ceased to be a director, officer, employee or agent and shall inure
   to the benefit of his or her heirs, executors and administrators; provided,
   however, that, the Corporation shall indemnify any such person seeking
   indemnification in connection with a proceeding (or part thereof) initiated
   by such person only if such proceeding (or part thereof) was authorized by
   the board of directors of the Corporation. The right to indemnification
   conferred in this Section B shall be a contract right and shall include the
   right to be paid by the Corporation the expenses incurred in defending any
   such proceeding in advance of its final disposition; provided, however, that,
   if the General Corporation Law of the State of Delaware requires, the payment
   of such expenses incurred by a director or officer in his or her capacity as
   a director or officer (and not in any other capacity in which service was or
   is rendered by such person while a director or officer, including, without
   limitation, service to an employee benefit plan) in advance of the final
   disposition of a proceeding, shall be made only upon delivery to the
   Corporation of an undertaking, by or on behalf of such director or officer,
   to repay all amounts so advanced if it shall ultimately be determined that
   such director or officer is not entitled to be indemnified under this Section
   or otherwise. The Corporation may, by action of its Board of Directors,
   provide indemnification to employees and agents of the Corporation with the
   same scope and effect as the foregoing indemnification of directors and
   officers.

                                      II-1


   11



         (2) Non-Exclusivity of Rights. The right to indemnification and
             -------------------------
   the payment of expenses incurred in defending a proceeding in advance of its
   final disposition conferred in this Section B shall not be exclusive of any
   other rights which any person may have or hereafter acquire under any
   statute, provisions of this Certificate of Incorporation, Bylaw, agreement,
   vote of stockholders or disinterested directors or otherwise.

         (3) Insurance. The Corporation may maintain insurance, at its
             ---------
   expense, to protect itself and any director, officer, employee or agent of
   the Corporation or another corporation, partnership, joint venture, trust or
   other enterprise against any such expense, liability or loss, whether or not
   the Corporation would have the power to indemnify such person against such
   expense, liability or loss under Delaware General Corporation Law."

         Registrant maintains directors' and officers' liability insurance in
the amount of $5,000,000 which covers civil liabilities. Such insurance helps
the Registrant to attract qualified officers and directors, by providing a means
for the Company to pay the costs and expenses involved in the event civil
litigation is brought against one of the Registrant's officers or directors.

ITEM 16. EXHIBITS.



   EXHIBIT                                DESCRIPTION
   -------                                -----------
            
       4.1     Unit Purchase Agreement dated June 6, 1994 (1)
       4.2     Form of Warrant to Purchase Common Stock (1)
       5       Opinion of Heller, Ehrman, White & McAuliffe
      23.1     Consent of Heller, Ehrman, White & McAuliffe
                (filed as part of Exhibit 5)
      23.2     Consent of KPMG Peat Marwick LLP


- ---------------------

(1)      Previously filed as an exhibit with the corresponding exhibit number to
         Registration Statement on Form S-3 (33-82562) filed August 8, 1994, as
         amended.

ITEM 17. UNDERTAKINGS.

          A.    The undersigned Registrant hereby undertakes:

                 (1) To file, during any period in which offers or sales are
being made, a post-effective amendment to this registration statement;

                        (i)  To include any prospectus required by section
                             10(a)(3) of the Securities Act of 1933;

                       (ii)  To reflect in the prospectus any facts or events
                             arising after the effective date of the
                             Registration Statement (or the most recent
                             post-effective amendment thereof) which,
                             individually or in the aggregate, represent a
                             fundamental change in the information set forth in
                             the Registration Statement;

                      (iii)  To include any material information with respect to
                             the plan of distribution not previously disclosed
                             in the Registration Statement or any material
                             change to such information in the Registration
                             Statement;

         Provided, however, that paragraphs (i) and (ii) shall not apply if the
information required to be included in a post-effective amendment by those
paragraphs is contained in periodic reports filed by the registrant pursuant to
section 13 or section 15(d) of the Securities Exchange Act of 1934 that are
incorporated by reference in the Registration Statement.

                                      II-2


   12



                 (2) That, for the purpose of determining any liability under
the Securities Act of 1933, each such post-effective amendment shall be deemed
to be a new Registration Statement relating to the securities offered therein,
and the offering of such securities at that time shall be deemed to be the
initial bona fide offering thereof.

                 (3) To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the offering.

          B. That, for purposes of determining any liability under the
Securities Act of 1933, each filing of the registrant's annual report pursuant
to section 13(a) or section 15(d) of the Securities Exchange Act of 1934 (and,
where applicable, each filing of an employee benefit plan's annual report
pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is
incorporated by reference in the registration statement shall be deemed to be a
new registration statement relating to the securities offering therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

          C. Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the Registrant pursuant to the provisions described under Item 15
above, or otherwise, the registrant has been advised that in the opinion of the
Securities and Exchange Commission, such indemnification is against public
policy as expressed in the Act and is, therefore, unenforceable. In the event
that a claim for indemnification against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling person of the Registrant in the successful defense of any action,
suit or proceeding) is asserted against the Registrant by such director, officer
or controlling person in connection with the securities being registered, the
Registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such indemnification by it is against public policy as
expressed in the Act and will be governed by the final adjudication of such
issue.

                                      II-3


   13



                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized in Redwood City, State of California, on the 25th day of April,
1995.

                                    ADVANCED POLYMER SYSTEMS, INC.

                                    By:  /S/ MICHAEL P.J. O'CONNELL           
                                         --------------------------
                                         Michael P.J. O'Connell
                                         Chief Financial Officer

         Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following persons in the
capacities and on the dates indicated.


                                                                                      
JOHN J. MEAKEM, JR.*                           Chairman of the Board and President          April 25, 1995
- -----------------------------------------      (Principal Executive Officer)
John J. Meakem, Jr.                            


/S/ MICHAEL P.J. O'CONNELL                     Chief Financial Officer                      April 25, 1995
- -----------------------------------------      (Principal Accounting Officer)
Michael P.J. O'Connell                         


JORGE HELLER*                                  Director                                     April 25, 1995
- -----------------------------------------
Jorge Heller


HELEN C. LEONG*                                Director                                     April 25, 1995
- -----------------------------------------
Helen C. Leong


PETER RIEPENHAUSEN*                            Director                                     April 25, 1995
- -----------------------------------------
Peter Riepenhausen


TOBY ROSENBLATT*                               Director                                     April 25, 1995
- -----------------------------------------
Toby Rosenblatt


GREGORY H. TURNBULL*                           Director                                     April 25, 1995
- -----------------------------------------
Gregory H. Turnbull


DENNIS WINGER*                                 Director                                     April 25, 1995
- -----------------------------------------
Dennis Winger


CARL W. EHMANN*                                Director                                     April 25, 1995
- -----------------------------------------
Carl W. Ehmann


*By: /s/ Michael P.J. O'Connell
- -----------------------------------------
Michael P.J. O'Connell
Attorney-in-fact



                                      II-4


   14



                         ADVANCED POLYMER SYSTEMS, INC.

                                  EXHIBIT INDEX



                                                                  SEQUENTIALLY
                                                                    NUMBERED
EXHIBIT                               DESCRIPTION                     PAGES
- -------                               -----------                     -----
                                                              
  4.1     Unit Purchase Agreement dated June 6, 1994 (1)

  4.2     Form of Warrant to Purchase Common Stock (1)

  5       Opinion of Heller, Ehrman, White & McAuliffe

 23.1     Consent of Heller, Ehrman, White & McAuliffe
           (included in Exhibit 5)

 23.2     Consent of KPMG Peat Marwick LLP


- ---------------------

(1)      Previously filed as an exhibit with the corresponding exhibit number to
         Registration Statement on Form S-3 (33-82562) filed August 8, 1994, as
         amended.