EXHIBIT 99.4

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

      In connection with the Annual Report of Church & Dwight Co., Inc. (the
"Company") on Form 10-K for the fiscal year ended December 31, 2002 as filed
with the Securities and Exchange Commission on the date hereof (the "Report"),
I, Zvi Eiref, Vice President, Finance of the Company, certify, pursuant to 18
U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act Of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d), as
applicable, of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material
respects, the financial condition and result of operations of the Company.

A signed original of this written statement required by Section 906 has been
provided to Church & Dwight Co., Inc. and will be retained by Church & Dwight
Co., Inc. and furnished to the Securities and Exchange Commission or its staff
upon request.


                              By:      /s/ Zvi Eiref
                                  -------------------------------------
                                       Name:    Zvi Eiref
                                       Title:   Vice President, Finance

                              Dated:   March 27, 2003


                                       25