EXHIBIT 32.2

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 RBC Life Sciences, Inc. (the “Company”) on Form 10-K for the year ended December 31, 2006, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Steven E. Brown, Vice President – Finance and Chief Financial Officer 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 to the best of my knowledge:

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

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

/s/ Steven E. Brown

Steven E. Brown

Vice President – Finance and Chief Financial Officer

March 14, 2007