Exhibit 3.10

CERTIFICATE OF FORMATION

OF

PBM PRODUCTS LLC

A LIMITED LIABILITY COMPANY

FIRST: The name of the limited liability company is:

PBM PRODUCTS LLC

SECOND: Its registered office in the State of Delaware is to be located at 1013 Centre Road, in the City of Wilmington, County of New Castle, 19805, and its registered agent at such address is CORPORATION SERVICE COMPANY.

IN WITNESS WHEREOF, the undersigned, being the individual forming the Company, has executed, signed and acknowledged this Certificate of Formation this seventh day of March, A.D. 1996.

/s/ Paul Manning

Paul Manning

Authorized Person

STATE OF DELAWARE

SECRETARY OF STATE

DIVISION OF CORPORATIONS

FILED 09:01 AM 03/07/1997

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