ProPhase Labs (PRPH) 10-Q 2011 Q1 Quarterly report

EXHIBIT 32.2

PROPHASE LABS, INC.

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO RULE 13a-14(b) OF THE SECURITIES EXCHANGE ACT OF 1934

AND 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Robert V. Cuddihy, Jr., Chief Financial Officer of ProPhase Labs, Inc., a Nevada corporation (the “Registrant”), in connection with the Registrant’s Quarterly Report on Form 10-Q for the period ended March 31, 2011, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), do hereby represent, warrant and certify, in compliance with Rule 13a-14(b) of the Securities Exchange Act of 1934 and 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 presents, in all material respects, the financial condition and results of operations of the Registrant.

/s/ Robert V. Cuddihy, Jr.

Robert V. Cuddihy, Jr.

Chief Operating Officer and Chief Financial Officer

(Principal Accounting and Financial Officer)

May 12, 2011