Exhibit 31.1

       CERTIFICATIONS



       I, William McMenemy, certify that:

       1. I have reviewed this quarterly report on Form 10-Q of Del
       Laboratories, Inc.;

       2. Based on my knowledge, this 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 quarterly report;

       3. Based on my knowledge, the financial statements, and other financial
       information included in this 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 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, including
       its consolidated subsidiaries, 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 the 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 change 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 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 the
       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 15, 2005






                                                         /S/ WILLIAM MCMENEMY
                                                         --------------------
                                                          William McMenemy
                                                         Chief Executive Officer