Filed Pursuant to Rule 424(B)(3)
                                                Registration File No. 333-118840

                                   PROSPECTUS
                    ________________________________________

                                20,700,000 Shares

                                  AVITAR, INC.

                                  Common Stock
                          ____________________________


     All of the  shares of common  stock  offered in this  Prospectus  are being
offered by the selling security holders in transactions as described in the plan
of distribution. The Company will not receive any of the proceeds from the sales
(other than purchase prices received upon the exercise of currently  outstanding
warrants,  the  underlying  shares  of  which  are  being  registered  for  sale
hereunder).

     Our common stock is traded on the American  Stock Exchange under the symbol
"AVR." On October 5, 2004,  the closing  price  reported on the  American  Stock
Exchange was $0.06 per share.

     THIS  INVESTMENT  IN THE COMMON STOCK  INVOLVES A HIGH DEGREE OF RISK.  YOU
SHOULD  PURCHASE  SHARES  ONLY IF YOU CAN  AFFORD A  COMPLETE  LOSS.  SEE  "RISK
FACTORS" BEGINNING ON PAGE 3.

     Neither the  Securities and Exchange  Commission  nor any state  securities
commission  has  approved  or  disapproved  of these  securities.  They have not
determined if this Prospectus is truthful or complete. Any representation to the
contrary is a criminal offense.

                       __________________________________


                 The date of this Prospectus is October 7, 2004




                                TABLE OF CONTENTS
                                   PROSPECTUS

                                                                    Page


ABOUT AVITAR  . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . .3

RISK FACTORS. . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . .3

FORWARD-LOOKING STATEMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . 7

USE OF PROCEEDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

SELLING SECURITY HOLDERS. . . . . . . . . . . . . . . . . . . . . . . . . . . 8

PLAN OF DISTRIBUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

EXPERTS . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . ....11

LEGAL MATTERS . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . ..11

STATEMENT OF INDEMNIFICATION . . . . . . . . . .. . . . . . . . . . . . . . .12

WHERE YOU CAN FIND MORE INFORMATION . . . . . . . . . . . . . . . . . . . . .13

INCORPORATION OF INFORMATION WE FILE WITH THE SEC . . . . . . . . . . . . . .13


                                  ABOUT AVITAR

     Avitar,   Inc.,   headquartered   in   Canton,   Massachusetts,   develops,
manufactures and markets  innovative  medical devices based on core technologies
in oral fluid diagnostics and customized polyurethane applications.  The Company
markets a unique portfolio of substance abuse testing products and services that
include:

- -    ORALscreen(R),   the  world's  first   point-of-contact  rapid  oral  fluid
     screening device for drugs of abuse,

- -    ORALscreenOSR(TM),  an instrument  that automates the analysis,  recording,
     reporting and transmitting of results for the  ORALscreen(R)drugs  of abuse
     tests, and

- -    other  ORALscreen(R)-related  products and several other  specialized tests
     for drugs of abuse.

     Avitar also markets an oral fluid collection system for DNA testing as well
as a proprietary line of polyurethane-based high tech medical devices.

     The location of our  principal  executive  offices is 65 Dan Road,  Canton,
Massachusetts 02021; telephone: (781) 821-2440.


                                  RISK FACTORS

This offering involves a high degree of risk. You should carefully  consider the
risks  described  below and the other  information  contained in this Prospectus
before deciding to invest in shares of our common stock.

THE COMPANY MAY NOT HAVE SUFFICIENT CASH FOR ITS CURRENT OPERATIONS AND IF IT IS
UNABLE TO RAISE NEW CAPITAL OR GENERATE  SUFFICIENT CASH FROM OPERATIONS IT WILL
NOT BE ABLE TO FULFILL ITS FINANCIAL OBLIGATIONS.

The Company has a working capital deficit, which was approximately $670 thousand
at June 30, 2004.  For the balance of calendar  year 2004,  the  Company's  cash
requirements are expected to include  primarily the funding of operating losses,
the payment of outstanding  accounts  payable and the repayment of certain notes
payable.  The  Company  is  seeking  additional  capital  and  plans to raise an
additional $7,000,000 during the remainder of calendar 2004. However,  there can
be no assurance that these financings will be achieved. If these financings were
achieved,   the  Company  would  be  able  to  fund  current   operations  until
profitability  or cash  flow  breakeven,  but only if its  projected  sales  are
achieved.  Thereafter  it will need  additional  funds for  operations,  product
expansion and debt repayment.

In the event of  unforeseen  circumstances  affecting  the  economy  and/or  the
Company,  this cash flow  projection may be proven  inaccurate,  and the Company
will need additional funds for current operations as well as for its outstanding
obligations sooner than currently anticipated. The Company can give no assurance
that  sources  of funds  will be  available  to fund its  operations  and  other
obligations.  If financing is  unavailable,  it may default on its  obligations,
curtail operations or cease business altogether.


WE HAVE  SUSTAINED  LOSSES IN THE PAST AND WE  EXPECT  TO  REPORT  LOSSES IN THE
FUTURE;  GOING  CONCERN  PARAGRAPH  IN REPORT OF  INDEPENDENT  CERTIFIED  PUBLIC
ACCOUNTANTS.

We have incurred  substantial losses that have reduced our stockholder's  equity
and at times  depleted our working  capital.  We funded our negative  cash flows
from 1999 to date  primarily by the sale of additional  equity and the placement
of debt. We incurred  losses of  approximately  $4.15 million during fiscal year
2002,  $6.46 million  during fiscal year 2003 and $2.1 million  during the first
three quarters of fiscal year 2004.

The losses in fiscal year 2002 were incurred primarily from expenses  associated
with the marketing of the new drug-testing kits and the development of test kits
for diseases.  Economic  conditions during fiscal year 2003 and current economic
conditions  have imposed  significant  constraints  on capital  raising and have
caused  actual  and  projected  operating  revenues  to remain  at a lower  than
expected  level  during  fiscal  year 2003 and for the first  three  quarters of
fiscal year 2004.

As a result of the  Company's  recurring  losses  from  operations  and  working
capital deficit, the report of its independent registered public accounting firm
relating  to  the  financial   statements  for  fiscal  year  2003  contains  an
explanatory  paragraph stating  substantial doubt about the Company's ability to
continue as a going  concern.  Such report  states that the ultimate  outcome of
this matter could not be determined  as of the date of such report  (December 5,
2003, except for Note 17 for which the date is December 16, 2003).


PRINCIPAL SUPPLIER RISK

Suppliers of two key  components  are, in each case, the current sole source for
the Company.  The inability to obtain  components will have an adverse effect on
the business, revenues and prospects of the Company. Although the Company has an
inventory  of these  components,  it may not last  sufficiently  long  while the
Company finds a new supplier.  There is no assurance that a new supplier will be
found for these components on a timely basis, or at all, if the current supplier
ceases to sell to the Company.

Although some of the parts and components  used to manufacture  our products are
available from multiple  sources,  we currently  purchase most of our components
from  single  sources  in  an  effort  to  obtain  volume  discounts.   Lack  of
availability  of any of these parts and  components  could result in  production
delays,  increased  costs,  or  costly  redesign  of our  products.  Any loss of
availability of an essential system component could result in a material adverse
change to our business, financial condition and results of operations.


NO ASSURANCE  FUTURE  CAPITAL WILL BE AVAILABLE TO US;  ADDITIONAL  CAPITAL WILL
DILUTE THE HOLDINGS OF OUR STOCKHOLDERS.

If we need  additional  financing,  we cannot give any assurance that it will be
available, or if available,  that it will be available on terms favorable to our
stockholders.  If funds are not available to satisfy any of our  short-term  and
long-term operating requirements,  we may limit or suspend our operations in the
entirety or, under certain  circumstances,  seek protection from creditors.  Our
recent  equity  offerings   resulted  in  the  dilution  of  our  then  existing
stockholders. It is possible that future financings may contain terms that could
result in similar or more substantial dilution than has already been incurred by
our stockholders from the sales of equity with warrants since fiscal year 1998.


A  SIGNIFICANT  NUMBER OF OUR SHARES ARE  ELIGIBLE FOR SALE AND THEIR SALE COULD
FURTHER DEPRESS THE MARKET PRICE OF OUR STOCK.

Sales of substantial  amounts of our common stock (including  shares issued upon
exercise of outstanding  options and warrants and shares issued upon  conversion
of convertible  preferred  shares) in the public market could depress the market
price of our common  stock.  As of August 31,  2004,  we had  approximately  123
million shares  outstanding  and  approximately  63 million shares  committed or
reserved for issuance  upon  exercise of options and warrants or  conversion  of
convertible preferred shares.


RISK OF DELISTING FROM AMEX IF AVITAR FAILS TO REGAIN  COMPLIANCE WITH CONTINUED
LISTING STANDARDS

Avitar does not meet all the continued  listing  standards of The American Stock
Exchange (AMEX)  primarily  because of its  accumulated  losses that had reduced
shareholders'  equity to a deficit.  AMEX has accepted Avitar's  Compliance Plan
and granted an extension to July of 2005. However, Avitar is subject to periodic
review  by AMEX and its  shares  could be  delisted  if  Avitar  fails to regain
compliance with the continued listing standards.


WE DEPEND ON THE DRUG OF ABUSE SCREEN SYSTEMS

We intend to continue to concentrate our efforts primarily on the development of
the ORALscreen(R)  drug of abuse detection systems and we will be dependent upon
the successful  development and marketing of those systems to generate revenues.
Acceptance of our systems may be adversely affected by:
     -    costs,
     -    concerns related to accuracy or false positive reports,
     -    a cultural resistance to the use of drug of abuse screening tests,
     -    the effectiveness of competing drug of abuse screening tests.

Any failure to achieve  greater  market  acceptance  of our systems  will have a
material  adverse  effect on our  business,  financial  condition and results of
operations.


THE  SUCCESS  OF  COMPETITIVE  PRODUCTS  COULD  HAVE AN  ADVERSE  EFFECT  ON OUR
BUSINESS.

The Drug of Abuse Testing industry is intensely competitive, although at present
we have  encountered  only minimal  direct  competition in the rapid on-site (as
opposed  to  laboratory)  oral  fluid  drug  testing  market.   The  significant
competitive factors in the industry include:
     -    price,
     -    convenience,
     -    accuracy,
     -    acceptance of new technologies,
     -    user satisfaction, and
     -    when applicable, government approval.

We believe our ORALscreen(R)  systems offer several distinct advantages over the
use of blood or  urine  samples,  including  net cost  savings,  ease of use and
non-invasiveness.  However,  the  success of any  competing  alternative  to the
ORALscreen(R)  systems  for  screening  for drugs of abuse could have a material
adverse effect on our business,  financial  condition and results of operations.
Most of our competitors have  substantially  greater financial  capabilities for
product  development  and  marketing  than  we  currently  do.  These  financial
capabilities  enable our competitors to market their systems in a more effective
manner.


SUBSTANTIAL REGULATION BY GOVERNMENT AGENCIES.

Many  of  our  products  are  subject  to   regulation  by  the  Food  and  Drug
Administration (the "FDA") and comparable agencies in various states and foreign
countries requiring, among other things, pre-market approval or clearance of new
medical or dental devices. In November 2000, the FDA proposed  regulations that,
although still not in effect, in the future may require a pre-market approval or
clearance  of our  ORALscreen(R)  products for sale to  employers.  In addition,
Avitar is subject to inspections by the FDA at all times,  and may be subject to
inspections  by state and foreign  agencies.  If the FDA believes that its legal
requirements  have not been  fulfilled,  it has  extensive  enforcement  powers,
including the ability to initiate action to physically  seize products and/or to
enjoin their manufacture and  distribution,  to require recalls of certain types
of products, and to impose or seek to impose civil or criminal sanctions against
individuals  or  companies.  Such  submissions  and review by the FDA could take
several  years,  after which there could be no assurance  that approval would be
granted.


DEPENDENCE  ON  INTELLECTUAL   PROPERTY;   NO  ASSURANCE  AS  TO  PROTECTION  OF
INTELLECTUAL PROPERTY.

Our ability to compete effectively with other companies will depend, in part, on
our ability to maintain the proprietary nature of our technologies. We intend to
rely substantially on unpatented proprietary information and know-how, and there
can be no assurance that others will not develop such  information  and know-how
independently or otherwise obtain access to our technology. Similarly, there can
be no assurance that our  proprietary  technology  will not infringe  patents or
other  rights  owned by others.  If we are unable to  adequately  safeguard  and
exploit  our  methods  and  technologies,  our  ability  to  compete  with other
companies, a majority of which have greater financial,  technological, human and
other  resources than the Company,  our business  would be materially  adversely
affected.


RISK OF PRODUCT LIABILITY; LIMITED INSURANCE COVERAGE.

The testing, marketing and sale of medical and dental products entails a risk of
product liability claims by consumers and others.  Avitar has maintained product
liability  insurance  coverage and currently has such insurance in the amount of
up to $5,000,000.  This insurance  will not cover  liabilities  caused by events
occurring after such policy is terminated or claims made after 60 days following
termination of the policy or in respect of events excluded from coverage. In the
event of a successful suit against Avitar,  lack or  insufficiency  of insurance
coverage  would  have a material  adverse  effect on  Avitar.  Further,  certain
distributors  of medical and dental products  require minimum product  liability
insurance coverage as a condition  precedent to purchasing or accepting products
for distribution.  Failure to satisfy such insurance  requirements  could impede
the ability of Avitar to achieve broad distribution of its products, which would
have a material adverse effect on Avitar.


WE ARE DEPENDENT ON OUR MANAGEMENT AND KEY PERSONNEL TO SUCCEED.

Our principal  executive officers and key personnel have extensive  knowledge of
and experience with our products, the research and development efforts needed to
improve them and the  development  of marketing  and sales  programs to increase
their  market  penetration.  The loss of the  services  of any of our  executive
officers or other key  personnel,  or our  failure to attract  and retain  other
skilled and experienced  personnel,  could have a material adverse effect on our
ability to manufacture, sell and market our products. Such events would probably
have a negative impact on our business and financial condition.


BARRIERS TO TAKEOVER

The Company is governed by the provisions of Section 203 of the Delaware General
Corporation  Law, an anti-takeover  law. In general,  the law prohibits a public
Delaware  corporation  from  engaging  in  a  "business   combination"  with  an
"interested  stockholder"  for a period  of three  years  after  the date of the
transaction  in which the person  became an interested  stockholder,  unless the
business combination is approved in a prescribed manner.  "Business combination"
is  defined to include  mergers,  asset  sales and  certain  other  transactions
resulting  in  a  financial   benefit  to  the   stockholders.   An  "interested
stockholder"  is  defined  as  a  person  who,   together  with  affiliates  and
associates,  owns (or within the prior  three  years,  did own) 15% or more of a
corporation's  voting  stock.  As a result of the  application  of Section  203,
potential  acquirers of the Company may be discouraged from attempting to effect
an acquisition transaction with the Company,  thereby possibly depriving holders
of the  Company's  securities  of  certain  opportunities  to sell or  otherwise
dispose of such securities at above market prices pursuant to such transactions.
In  addition,  in the event of certain  changes of  control of the  Company  (as
defined in the Company's  Equity Plan)  outstanding  options granted pursuant to
the Company's  Equity Plan will become  immediately  exercisable  in full.  Such
acceleration of exercisability  may also discourage  potential  acquirers of the
Company.


THE MARKET PRICE OF OUR STOCK HAS HISTORICALLY BEEN VOLATILE.

The  volatility of our common stock imposes a greater risk of capital  losses on
stockholders as compared to less volatile stocks.  In addition,  such volatility
makes it difficult to ascribe a stable valuation to a stockholder's  holdings of
our common stock.  Factors such as announcements  of technological  innovations,
changes in marketing,  product  pricing and sales  strategies or new products by
our  competitors,  changes in domestic or foreign  governmental  regulations  or
regulatory  approval  processes,  developments or disputes relating to patent or
proprietary  rights and public  concern as to the  reliability of the OralScreen
systems  or drug tests in general  may have a  significant  impact on the market
price of our common  stock.  Moreover,  the  possibility  exists  that the stock
market (and in particular the  securities of technology  companies such as ours)
could experience  extreme price and volume  fluctuations  unrelated to operating
performance.


                           FORWARD-LOOKING STATEMENTS

Avitar, Inc. makes statements in this Prospectus and the documents  incorporated
by reference that are considered  forward-looking  statements within the meaning
of the  Securities  Act of 1933 and the  Securities  Exchange  Act of 1934.  The
Private  Securities  Litigation  Reform  Act of 1995  contains  the safe  harbor
provisions that cover these  forward-looking  statements.  We are including this
statement for purposes of complying with these safe harbor  provisions.  We base
these  forward-looking  statements on our current  expectations  and projections
about future  events.  These  forward-looking  statements  are not guarantees of
future  performance  and are  subject to risks,  uncertainties  and  assumptions
including, among other things:
     -    continued losses and cash flow deficits;
     -    the continued  availability of financing in the amounts,  at the times
          and on the terms required to support our future business;
     -    uncertain market acceptance of our products;
     -    accuracy,  reliability and patent concerns  regarding our products and
          technology;
     -    competition; and
     -    reliance on key personnel.

Words such as "expect,"  "anticipate,"  "intend," "plan," "believe,"  "estimate"
and  variations of such words and similar  expressions  are intended to identify
such forward-looking  statements.  We undertake no obligation to publicly update
or  revise  any  forward-looking   statements,   whether  as  a  result  of  new
information,  future events or otherwise.  Because of these risks, uncertainties
and  assumptions,  the  forward-looking  events  discussed  or  incorporated  by
reference in this document may not occur.

                                 USE OF PROCEEDS

     We will not receive any proceeds from the sale of shares of common stock by
the selling security holders.


                            SELLING SECURITY HOLDERS

     The  shares  of common  stock  offered  herein  include  20,322,221  shares
reserved  for  possible  issuance  on  conversion  of 2,491  shares  of Series A
Convertible  Preferred  Stock,  125,000 shares that may be issued on exercise of
outstanding  warrants  and  another  252,779  shares  that may be  issued  as 4%
dividend shares.

     Absent  registration  under the Securities  Act, the shares of common stock
offered herein are subject to certain  limitations on resale.  The  Registration
Statement of which this  Prospectus  forms a part has been filed in satisfaction
of certain  registration  rights we granted to the entities  listed  below.  The
following  table  assumes  that the  entities  listed below will sell all of the
common stock offered herein set forth opposite their respective names.  However,
the entities listed below may sell only a portion or may sell none of the shares
set forth opposite their names.



                                    Common Shares                                             Common Shares
                                    Beneficially Owned                                      Beneficially Owned
                                    Prior to the                      Number of             After the Offering
                                     Offering (1)                   Shares to be Sold
                                   Number        Percent               in the             Number of        Percent
                                  of Shares      of Class             Offering             Shares          of Class
                                                                        
Global Capital Funding
 Group, L.P.                    6,452,981 (2)      4.99 %            3,716,268 (3)        600,000            * %

GCA Strategic Investment
 Fund Limited
                                6,452,981 (4)      4.99 %           16,730,953 (5)              0            * %

Dividend (4%) Shares                    0             0                252,779                  0            * %
_(6)
- ----------------------------------------------------------------------------------------------------------------
Grand Total                    12,905,962          9.98  %          20,700,000            600,000            * %


_________________

(1)  Shares  beneficially  held as of August 31,  2004 to the  knowledge  of the
     Company.

(2)  Includes  (a)  11,011,111   shares   underlying  991  shares  of  Series  A
     Convertible   Preferred  Stock  ($1,000  per  share  and  $991,000  in  the
     aggregate),  but  limited  to  4.99% as  discussed  below  and (b)  600,000
     warrants.  The 991  shares of Series A  Convertible  Preferred  Stock  were
     issued  on May 25,  2004 as part of a private  placement  in  exchange  for
     cancellation  of $1.25 million in principal  amount of long-term  debt plus
     accrued interest.  The Series A Convertible Preferred Stock are convertible
     into  common  stock at the lesser of $0.12 per share and 85% of the average
     of the  three  (3)  lowest  bid  prices  for  the  ten  (10)  trading  days
     immediately  prior to the notice of conversion,  subject to adjustments and
     minimum  pricing;  but all  limited to  issuance  of shares of no more than
     4.99% beneficial  ownership  pursuant to the Exchange Agreement between the
     Company and the Purchaser.

(3)  Includes (a) 3,655,555  additional shares underlying 1,316 shares of Series
     A Convertible  Preferred Stock  reflecting  recent  conversions of Series A
     Convertible  Preferred  Stock at $0.09  per  share  and (b)  60,713  shares
     allocated by the Company from the May 25, 2004 private placement.

(4)  Includes  (a)  16,666,666  shares  underlying  1,500  shares  of  Series  A
     Convertible  Preferred  Stock  ($1,000  per  share  and  $1,500,000  in the
     aggregate)  but  limited  to  4.99%  as  discussed  below  and (b)  225,000
     warrants.  250 of the  Series A  Convertible  Preferred  Stock and  100,000
     warrants  were  issued on May 25,  2004 as part of a private  placement  in
     exchange  for  gross  proceeds  of  approximately  $250,000  (as part of an
     aggregate $1 million) and 1,250 of the Series A Convertible Preferred Stock
     and 125,000  warrants were issued on August 5, 2004 in a private  placement
     in exchange  for gross  proceeds of  $1,250,000.  The Series A  Convertible
     Preferred  Stock are  convertible  into common stock at the lesser of $0.12
     per share (for shares  issued May 25,  2004) or $0.09 per share (for shares
     issued  August 5, 2004) and 85% of the  average of the three (3) lowest bid
     prices for the ten (10)  trading  days  immediately  prior to the notice of
     conversion,  subject to adjustments and minimum pricing; but all limited to
     issuance of shares of no more than 4.99% beneficial  ownership  pursuant to
     the Securities  Purchase  Agreements between the Company and the Purchaser.
     The warrants are exercisable at $0.126 per share.  (for warrants issued May
     25, 2004) or $0.095 per share (for warrants issued August 5, 2004).

(5)  Includes  (a)  13,888,888  shares  underlying  1,250  shares  of  Series  A
     Convertible  Preferred Stock issued on August 5, 2004 ($1,000 per share and
     $1,250,000 in the  aggregate)  convertible at a minimum of $0.09 per share,
     (b)  2,777,778  shares  underlying  250  shares  of  Series  A  Convertible
     Preferred  Stock  issued on May 25, 2004  ($1,000 per share and $250,000 in
     the  aggregate)  convertible  at a minimum of $0.12 per share but  recently
     convertible  at $0.09 per share  (less  60,713  shares  reallocated  by the
     Company to Global Capital Funding Group, L.P. from the May 25, 2004 private
     placement) and (c) 225,000 warrants. The warrants are exercisable at $0.126
     per share  (for  warrants  issued  May 25,  2004) or $0.095  per share (for
     warrants issued August 5, 2004).

(6)  Shares that may be issued as 4% Dividend on Series A Convertible  Preferred
     Stock.

*    Less than one percent (1%).


                              PLAN OF DISTRIBUTION

     We are registering the common stock,  including the common stock underlying
the  warrants  and the  shares  of  preferred  stock on  behalf  of the  selling
stockholders.  The common stock may be sold in one or more transactions at fixed
prices,  at prevailing  market prices at the time of sale, at prices  related to
the prevailing  market prices, at varying prices determined at the time of sale,
or at negotiated prices.  These sales may be effected at various times in one or
more of the following transactions, or in other kinds of transactions:

     -    transactions  on  The  American  Stock  Exchange  or on  any  national
          securities  exchange  or  U.S.  inter-dealer  system  of a  registered
          national  securities  association  on which  the  common  stock may be
          listed or quoted at the time of sale;

     -    in the over-the-counter market;

     -    in  private  transactions  and  transactions  otherwise  than on these
          exchanges or systems or in the over-the-counter market;

     -    in connection with short sales of the shares;

     -    by pledge to secure or in payment of debt and other obligations;

     -    through the  writing of options,  whether the options are listed on an
          options exchange or otherwise;

     -    in connection with the writing of non-traded and exchange-traded  call
          options, in hedge transactions and in settlement of other transactions
          in standardized or over-the-counter options; or

     -    through a combination of any of the above transactions.

     The selling stockholders and their successors, including their transferees,
pledgees or donees or their  successors,  may sell the common stock  directly to
the  purchasers  or through  underwriters,  broker-dealers  or  agents,  who may
receive  compensation in the form of discounts,  concessions or commissions from
the selling  stockholders or the  purchasers.  These  discounts,  concessions or
commissions as to any particular  underwriter,  broker-dealer or agent may be in
excess of those customary in the types of transactions involved.

     In addition,  any securities  covered by this  prospectus  that qualify for
sale  pursuant  to Rule 144 of the  Securities  Act may be sold  under  Rule 144
rather than pursuant to this prospectus.

     We entered  into  registration  rights  agreements  for the  benefit of the
selling  stockholders to register the common stock under applicable  federal and
state  securities  laws.  The  registration   rights   agreements   provide  for
cross-indemnification  of the  selling  stockholders  and us and our  respective
directors,  officers and  controlling  persons against  specific  liabilities in
connection  with the offer and sale of the common stock,  including  liabilities
under the Securities Act. We will pay substantially all of the expenses incurred
by the selling  stockholders  incident to the  registration  of the offering and
sale of the common stock.


     The selling stockholders and any other persons participating in the sale or
distribution  of the  shares  will be subject to  applicable  provisions  of the
Exchange Act and the rules and regulations  under such act,  including,  without
limitation,  Regulation M. These provisions may restrict certain  activities of,
and limit the timing of purchase  and sales of any of the shares by, the selling
stockholders or any other such person. Furthermore,  under Regulation M, persons
engaged in a  distribution  of securities  are  prohibited  from  simultaneously
engaging in market  making and certain  other  activities  with  respect to such
securities  for a  specified  period of time prior to the  commencement  of such
distributions,  subject to  specified  exceptions  or  exemptions.  All of these
limitations may affect the marketability of the shares.

                                     EXPERTS

     The financial  statements  incorporated  by reference in this  Registration
Statement  have been  audited by BDO  Seidman,  LLP, an  independent  registered
public  accounting  firm,  to the  extent  and for the period set forth in their
report incorporated herein by reference, and are incorporated herein in reliance
upon such report  given upon the  authority  of said firm as experts in auditing
and  accounting.  Their  report  contains  an  explanatory  paragraph  regarding
uncertainties as to the Company's ability to continue in business.

                                  LEGAL MATTERS

     Certain legal matters with respect to the validity of the common stock will
be passed upon for Avitar by Dolgenos Newman & Cronin LLP, New York, New York.


                          STATEMENT OF INDEMNIFICATION

     The Company's  Certificate of  Incorporation,  as amended,  provides that a
director will not be personally  liable to the Company or its  stockholders  for
monetary  damages  for  the  breach  of his or her  fiduciary  duty of care as a
director,  including breaches that constitute gross negligence. By its terms and
in accordance with the Delaware General Corporation Law ("DGCL"),  however, this
provision does not eliminate or limit the liability of a director of the Company
(i)  for  breach  of the  director's  duty  of  loyalty  to the  Company  or its
stockholders,  (ii) for acts or  omissions  not in good  faith or which  involve
intentional misconduct or a knowing violation of law, (iii) under Section 174 of
the  DGCL  (relating  to  unlawful  payments  of  dividends  or  unlawful  stock
repurchases or redemptions) or (iv) for any improper benefit.

     This  provision  offers  persons  who  serve  on  our  board  of  directors
protection  against awards of monetary damages  resulting from breaches of their
duty of care (except as indicated  above).  As a result of this  provision,  our
ability or our stockholder's ability to successfully prosecute an action against
a director for a breach of his duty of care is limited.  However,  the provision
does not affect the availability of equitable  remedies such as an injunction or
rescission based upon a director's breach of his duty of care. The SEC has taken
the position  that the  provision  will have no effect on claims  arising  under
federal securities laws.

     Section 145 of the Delaware law grants  corporations the right to indemnify
their  directors,   officers,  employees  and  agents  in  accordance  with  the
provisions  therein set forth.  Our By-laws  provide  that we shall,  subject to
limited  exceptions,  indemnify  our  directors  and  executive  officers to the
fullest extent not prohibited by the Delaware law. Our By-laws  provide  further
that we shall have the power to  indemnify  our other  officers,  employees  and
other  agents as set forth in the  Delaware  law.  Such  indemnification  rights
include reimbursement for expenses incurred by such director, executive officer,
other  officer,  employee or agent in advance of the final  disposition  of such
proceeding in accordance with the applicable provisions of the Delaware law.

     We have entered into  agreements with certain of our directors and officers
pursuant to which we have agreed to indemnify such directors and officers to the
fullest extent  permitted under  applicable law. In addition,  we have purchased
insurance  containing  customary  terms and  conditions  as  permitted by law on
behalf of our  directors  and officers,  which may cover  liabilities  under the
Securities Act.  Insofar as  indemnification  for liabilities  arising under the
Securities  Act may be permitted  to our  directors,  officers  and  controlling
persons  pursuant to these  provisions,  or  otherwise,  Avitar has been advised
that, in the opinion of the SEC, such  indemnification  is against public policy
as expressed in the Securities Act and is, therefore, unenforceable.

                       WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the Securities
and Exchange Commission. Our SEC filings are also available over the Internet at
the  SEC's  web  site at  http://www.sec.gov.  You may  also  read  and copy any
document we file at the SEC's public  reference  rooms in Washington,  D.C., New
York, New York and Chicago,  Illinois. Please call the SEC at 1-800-SEC-0330 for
more information on the public reference rooms.

     Statements made in this Prospectus  concerning the contents of any contract
or other documents are not necessarily  complete.  With respect to each contract
or other document filed as an appendix to the Registration Statement,  reference
is hereby made to that  appendix for a more complete  description  of the matter
involved,  and each such  statement is hereby  qualified in its entirety by such
reference.

                INCORPORATION OF INFORMATION WE FILE WITH THE SEC

The SEC allows us to  "incorporate  by reference"  the  information we file with
them, which means:

     .    incorporated documents are considered part of the Prospectus;

     .    we can disclose important information to you by referring you to those
          documents; and

     .    information  that we file with the SEC will  automatically  update and
          supersede  the  Prospectus.  We are  incorporating  by  reference  the
          documents  listed  below  which  were  filed  with the SEC  under  the
          Exchange Act:

     .    Annual  Report on Form 10-KSB for the year ended  September  30, 2003,
          and documents incorporated by reference in such report;

     .    Quarterly Report on Form 10-QSB, filed February 17, 2004;

     .    Quarterly Report on Form 10-QSB, filed May 17, 2004;

     .    Quarterly Report on Form 10-QSB, filed August 18, 2004;

     .    Current Report on Form 8-K, filed March 9, 2004;

     .    Current Report on Form 8-K, filed March 25, 2004;

     .    Current Report on Form 8-K, filed May 28, 2004;

     .    Current Report on Form 8-K, filed August 10, 2004;


We also  incorporate by reference  each of the following  documents that we will
file with the SEC after the date of the  Prospectus  but  before  the end of the
offering:

     .    Reports filed under Sections 13(a) and (c) of the Exchange Act;

     .    Definitive  proxy or information  statements filed under Section 14 of
          the  Exchange  Act in  connection  with any  subsequent  stockholders'
          meeting; and

     .    Any reports filed under Section 15(d) of the Exchange Act.

You may request a copy of these  filings,  at no cost,  by  contacting us at the
following address or phone number:

                                  Avitar, Inc.
                            Attn: Mr. Jay Leatherman
                             Chief Financial Officer
                                   65 Dan Road
                                Canton, MA 02021
                            Telephone:(781) 821-2400

     You  should  rely only on the  information  incorporated  by  reference  or
provided in this  Prospectus or any  supplement.  We have not authorized  anyone
else to provide you with different information. The selling securityholders will
not make an offer of these shares in any state where the offer is not permitted.
You should not assume that the  information in this Prospectus or any supplement
is accurate as of any date other than the date on the front of these documents.


================================================================================

We have not  authorized  any  dealer,  salesperson  or other  person to give any
information or represent anything not contained in this Prospectus. You must not
rely on any unauthorized  information.  If anyone provides you with different or
inconsistent  information,  you should not rely on it. This  Prospectus does not
offer  to  sell  any  shares  in any  jurisdiction  where  it is  unlawful.  The
information  in this  Prospectus  is  current  as of the date shown on the cover
page.



                                20,700,000 Shares





                                  AVITAR, INC.





                                  Common Stock





                              ____________________





                                   Prospectus




                              ____________________








                                                                October 7, 2004

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