SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    INFORMATION TO BE INCLUDED IN STATEMENTS
                 FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS

                     THERETO FILED PURSUANT TO RULE 13d-2(a)

                       (AMENDMENT NO. 11 TO SCHEDULE 13D)

                    Under the Securities Exchange Act of 1934

                                BRITESMILE, INC.
                                (Name of Issuer)

                     COMMON STOCK, PAR VALUE $.001 PER SHARE
                         (Title of Class of Securities)

                                   461909 20 2
                                 (CUSIP Number)


                              CRAIGH LEONARD, ESQ.
                                BINGHAM DANA LLP

                                 399 PARK AVENUE
                          NEW YORK, NEW YORK 10022-4689

                                 (212) 318-7700
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)
                                  July 11, 2001
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule  because of Rule  13d-1(e),  13d-1(f) or 13d-1(g),  check the following
box. [ ]

                                  Page 1 of 8






                                  SCHEDULE 13D

                                                        

CUSIP NO. 461909 20 2
(1)      Name of reporting persons...................      LCO INVESTMENTS LIMITED
         S.S. or I.R.S. identification Nos. of above
         persons.....................................
(2)      Check the appropriate box if a member of a        (a)  [x]
         group (see instructions)....................
                                                           (b)  [_]
(3)      SEC use only................................
(4)      Source of funds (see instructions)..........      WC
                                                           OO

(5)      Check if disclosure of legal proceedings is
         required pursuant to items 2(d) or 2(e).....      [_]

(6)      Citizenship or place of organization........      GUERNSEY, CHANNEL ISLANDS
Number of shares beneficially owned by each reporting
person with:
(7)      Sole voting power...........................      13,307,823 (which includes 638,797 shares subject to
                                                           acquisition within 60 days on exercise of certain
                                                           Warrants)
(8)      Shared voting power.........................      None
(9)      Sole dispositive power......................      13,307,823 (which includes 638,797 shares subject to
                                                           acquisition within 60 days on exercise of certain
                                                           Warrants)
(10)     Shared dispositive power....................      None
(11)     Aggregate amount beneficially owned by each       13,307,823 (which includes 638,797 shares subject to
         reporting person............................      acquisition within 60 days on exercise of certain
                                                           Warrants)
(12)     Check if the aggregate amount in Row (11)
         excludes certain shares (see instructions)..      [_]

(13)     Percent of class represented by amount in Row
         (11)........................................      37.1%
(14)     Type of reporting person (see instructions).      CO




                                   Page 2 of 8



                                  SCHEDULE 13D

                                                        

CUSIP NO. 461909 20 2
(1)      Name of reporting persons...................      THE ERSE TRUST
         S.S. or I.R.S. identification Nos. of above
         persons.....................................
(2)      Check the appropriate box if a member of a        (a)  [x]
         group (see instructions)....................
                                                           (b)  [_]
(3)      SEC use only................................
(4)      Source of funds (see instructions)..........      Not applicable
(5)      Check if disclosure of legal proceedings is
         required pursuant to items 2(d) or 2(e).....      [_]

(6)      Citizenship or place of organization........      GUERNSEY, CHANNEL ISLANDS
Number of shares beneficially owned by each reporting
person with:
(7)      Sole voting power...........................      None
(8)      Shared voting power.........................      None
(9)      Sole dispositive power......................      None
(10)     Shared dispositive power....................      None
(11)     Aggregate amount beneficially owned by each       13,307,823 (which includes 638,797 shares subject to
         reporting person............................      acquisition within 60 days on exercise of certain
                                                           Warrants)
(12)     Check if the aggregate amount in Row (11)
         excludes certain shares (see instructions)..      [_]

(13)     Percent of class represented by amount in Row
         (11)........................................      37.1%
(14)     Type of reporting person (see instructions).
                                                           OO(Trust)


The inclusion of The ERSE Trust in this  Statement  shall not be construed as an
admission  that such party is, for purposes of Section  13(d) of the  Securities
Exchange Act of 1934,  the beneficial  owner of any  securities  covered by this
Statement.

                                  Page 3 of 8




                                  SCHEDULE 13D

                                                        

CUSIP NO. 461909 20 2
(1)      Name of reporting persons...................      CAP ADVISERS LIMITED
         S.S. or I.R.S. identification Nos. of above
         persons.....................................
(2)      Check the appropriate box if a member of a        (a)  [x]
         group (see instructions)....................
                                                           (b)  [_]
(3)      SEC use only................................
(4)      Source of funds (see instructions)..........      Not Applicable
(5)      Check if disclosure of legal proceedings is
         required pursuant to items 2(d) or 2(e).....      [_]

(6)      Citizenship or place of organization........      UNITED KINGDOM
Number of shares beneficially owned by each reporting
person with:
(7)      Sole voting power...........................      None
(8)      Shared voting power.........................      285,000
(9)      Sole dispositive power......................      None
(10)     Shared dispositive power....................      285,000
(11)     Aggregate amount beneficially owned by each       13,592,823 (which includes 638,797 shares subject to
         reporting person............................      acquisition within 60 days on exercise of certain
                                                           Warrants)
(12)     Check if the aggregate amount in Row (11)
         excludes certain shares (see instructions)..      [_]

(13)     Percent of class represented by amount in Row
         (11)........................................      37.9%
(14)     Type of reporting person (see instructions).      CO



The inclusion of CAP Advisers  Limited in this Statement  shall not be construed
as an  admission  that such  party is,  for  purposes  of  Section  13(d) of the
Securities  Exchange Act of 1934, the beneficial owner of any securities covered
by this Statement.

                                  Page 4 of 8



                                  SCHEDULE 13D

                                                        

CUSIP NO. 461909 20 2
(1)      Name of reporting persons...................      ANTHONY M. PILARO
         S.S. or I.R.S. identification Nos. of above
         persons.....................................
(2)      Check the appropriate box if a member of a        (a)  [x]
         group (see instructions)....................
                                                           (b)  [_]
(3)      SEC use only................................
(4)      Source of funds (see instructions)..........      Not Applicable
(5)      Check if disclosure of legal proceedings is
         required pursuant to items 2(d) or 2(e).....      [_]

(6)      Citizenship or place of organization........      IRELAND
Number of shares beneficially owned by each reporting
person with:
(7)      Sole voting power...........................      None
(8)      Shared voting power.........................      None
(9)      Sole dispositive power......................      None
(10)     Shared dispositive power....................      None
(11)     Aggregate amount beneficially owned by each       13,307,823 (which includes 638,797 shares subject to
         reporting person............................      acquisition within 60 days on exercise of certain
                                                           Warrants)
(12)     Check if the aggregate amount in Row (11)
         excludes certain shares (see instructions)..      [_]

(13)     Percent of class represented by amount in Row
         (11)........................................      37.1%
(14)     Type of reporting person (see instructions).      IN



The inclusion of Anthony M. Pilaro in this  Statement  shall not be construed as
an  admission  that  such  person  is,  for  purposes  of  Section  13(d) of the
Securities  Exchange Act of 1934, the beneficial owner of any securities covered
by this Statement.

                                  Page 5 of 8




                          BRITESMILE, INC. SCHEDULE 13D
                                AMENDMENT NO. 11

NOTE:  This Amendment No. 11 amends a Statement on Schedule 13D filed on
April 11, 1996 by LCO Investments Limited and others, as amended by an
Amendment No. 1 filed on December 6, 1996, by an Amendment No. 2 filed on
May 23, 1997, by an Amendment No. 3 filed on September 24, 1997, by an
Amendment No. 4 filed on December 1, 1997, by an Amendment No. 5 filed on
May 11, 1998, by an Amendment No. 6 filed on December 15, 1998, by an
Amendment No. 7 filed on July 2, 1999, by an Amendment No. 8 filed on
November 8, 1999, by an Amendment No. 9 filed on July 13, 2000 and by an
Amendment No. 10 filed on January 11, 2001.  This Amendment No. 11 is filed on
behalf of LCO Investments Limited ("LCO Investments"), The ERSE Trust, CAP
Advisers Limited and Anthony M. Pilaro.

                  This  Amendment  No. 11 is being  filed,  (a) to  reflect  the
conversion  by LCO  Investments  of  $5,132,644  of 7.52%  Convertible  Notes of
BriteSmile,  Inc.  into  1,026,529  shares of Common  Stock,  (b) to reflect the
disposition of 185,000 shares of Common Stock to terminate the interests of four
Unit  Holders  pursuant  to  grants  made in 1998  under LCO  Investments'  1998
Incentive  Compensation Plan for key employees and consultants to BriteSmile and
(c) to reflect the  disposition  of  2,000,000  shares of Common Stock by making
gifts  to ACP II  Trust  and CAP II  Trust.  There  has  been no  change  in the
information  set forth in  response  to Items 1, 2, 4 and 5 (except for 5(c)) of
Schedule 13D. Accordingly, those Items are omitted from this Amendment No. 11.

                  The  inclusion  of The ERSE Trust,  CAP  Advisers  Limited and
Anthony M. Pilaro shall not be construed as an admission  that such parties are,
for the purposes of Section 13(d) of the  Securities  Exchange Act of 1934,  the
beneficial owners of any securities covered by this Statement.

Item 3.           Source and Amount of Funds or Other Consideration.
                  -------------------------------------------------

                  Item 3 is amended to add the following:

                  LCO  Investments  used its own funds to convert the $5,132,644
of 7.52%  Convertible Notes into 1,026,529 shares of Common Stock. The amount of
Notes owned increased from $5,000,000,  as previously  reported,  to $5,132,644,
due to interest payable under the Notes.

Item 5.           Interest in Securities of the Issuer.
                  ------------------------------------

                  Item 5(c) is amended to add the following paragraphs:

                  On January 2, 2001,  LCO  Investments  disposed  of a total of
185,000  shares of Common Stock to terminate  the interests of four Unit Holders
pursuant  to  grants  made  in  1998  under  LCO  Investments'   1998  Incentive
Compensation Plan for key employees and consultants to BriteSmile.

                                  Page 6 of 8

                  On April 10, 2001,  LCO  Investments  converted  certain 7.52%
Convertible Notes held by it and received  1,026,529 shares of Common Stock as a
result of the conversion.

                  On July  12,  2001,  LCO  Investments  disposed  of a total of
2,000,000 shares of Common Stock by making gifts of 1,000,000 to each of the CAP
II Trust and the ACP II Trust.

                  As  a  result  of  these  conversions  and  dispositions,  LCO
Investments  beneficially owns 13,307,823 shares of Common Stock (which includes
638,797  shares that are  subject to  acquisition  on  exercise of Warrants  and
1,330,000  shares which are owned by a  subsidiary  of LCO  Investments.)  These
shares represent 37.1% of the outstanding stock of BriteSmile, Inc. (treating as
outstanding  the said  638,797  shares  that are subject to  acquisition  by LCO
Investments).  Neither ERSE Trust, CAP Advisers Limited or Anthony M. Pilaro own
any shares of Common Stock.  However,  CAP Advisers Limited,  in its capacity as
trustee of four  separate  trusts,  shares  power to vote and dispose of 285,000
shares of Common Stock.

Item 6.           Contracts, Arrangements, Understandings or Relationships With
                  --------------------------------------------------------
                  Respect to Securities of the Issuer
                  ----------------------------------------

                  LCO Investments  disposed of 185,000 shares of Common Stock to
terminate the  interests of four Units  Holders  pursuant to grants made in 1998
under LCO Investments'  1998 Incentive  Compensation  Plan for key employees and
consultants to BriteSmile.

Item 7.           Material to be Filed as Exhibits
                  --------------------------------

                  Exhibit E which was previously filed, is the Power of Attorney
                  and  Authorizing   Agreement   appointing  Craigh  Leonard  as
                  Attorney-in-Fact  and authorizing him to sign the Schedule 13D
                  and all amendments thereto.

                  Exhibit  X which  was  previously  filed  is the form of Units
                  Agreement  between LCO  Investments  Limited and certain Units
                  Holders.

                  Exhibit  Y which  was  previously  filed is the  Joint  Filing
                  Agreement among LCO Investments  Limited,  the ERSE Trust, CAP
                  Advisers Limited and Anthony M. Pilaro, dated June 30, 1999.

                                  Page 7 of 8





                                    Signature

                  After  reasonable  inquiry and to the best of my knowledge and
belief,  we certify that the  information  set forth in this  Statement is true,
complete and correct.

Dated:  July 20, 2001

                                               LCO INVESTMENTS LIMITED

                                               By/s/Craigh Leonard
                                               Craigh Leonard, Attorney-in-Fact

                                               THE ERSE TRUST

                                               By/s/Craigh Leonard
                                               Craigh Leonard, Attorney-in-Fact

                                               CAP ADVISERS LIMITED

                                               By/s/Craigh Leonard
                                               Craigh Leonard, Attorney-in-Fact

                                               /s/Craigh Leonard
                                               Anthony M. Pilaro,
                                               by Craigh Leonard,
                                               Attorney-in-Fact

                                  Page 8 of 8