Fibrocell Science (FCSC) 10-Q 2004 Q3 Quarterly report

Exhibit 32.1

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 Quarterly Report of Isolagen, Inc. (the “Company”) on Form 10-Q for the fiscal quarter ended September 30, 2004 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Robert J. Bitterman, Chief Executive Officer of the Company, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

•The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C 78m or 78o(d)); and

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

Date: November 8, 2004	By:	/s/ Robert J. Bitterman
	Robert J. Bitterman, CEO

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