Exhibit 31.1

                                  CERTIFICATION


I, William P. Horgan, certify that:

     1. I have reviewed this quarterly  report on Form 10-QSB of Human Pheromone
Sciences, Inc.;

     2. Based on my knowledge, this quarterly report does not contain any untrue
statement of a material fact or omit to state a material fact  necessary to make
the statements made, in light of the  circumstances  under which such statements
were made, not misleading with respect to the period covered by this report;

     3. Based on my knowledge,  the financial  statements,  and other  financial
information  included in this quarterly  report,  fairly present in all material
respects the financial  condition,  results of operations  and cash flows of the
registrant as of, and for, the periods presented in this report;

     4. The registrant's  other certifying  officer(s) and I are responsible for
establishing and maintaining  disclosure  controls and procedures (as defined in
Exchange Act Rules  13a-15(e) and  15d-15(e))  for the  registrant  and have: a)
Designed such  disclosure  controls and  procedures,  or caused such  disclosure
controls and  procedures to be designed  under our  supervision,  to ensure that
material  information  relating to the  registrant is made known to us by others
within those  entities,  particularly  during the period in which this report is
being prepared;  b) Evaluated the  effectiveness of the registrant's  disclosure
controls and procedures and presented in this report our  conclusions  about the
effectiveness of disclosure controls and procedures, as of the end of the period
covered by this report based on such evaluation; and c) Disclosed in this report
any changes in the registrant's  internal control over financial  reporting that
occurred during the registrant's  most recent fiscal quarter that has materially
affected,  or is  reasonably  likely  to  materially  affect,  the  registrant's
internal control over financial reporting; and

     5. The registrant's other certifying officer(s) and I have disclosed, based
on our most recent evaluation of internal control over financial  reporting,  to
the  registrant's  auditors  and the audit  committee of  registrant's  board of
directors (or persons performing the equivalent function):

     a) All significant  deficiencies  and material  weaknesses in the design or
operation of internal  control over  financial  reporting  which are  reasonably
likely  to  adversely  affect  the  registrant's  ability  to  record,  process,
summarize and report financial information; and

     b) Any fraud,  whether or not material,  that involves  management or other
employees who have a significant role in the registrant's  internal control over
financial reporting.


Date: August 8, 2005

/s/ William P. Horgan
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Chairman and Chief Executive Officer