Exhibit 24

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as his attorneys-in-fact to sign on his behalf and in his capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ Mark A. Buthman

                                                            Mark A. Buthman

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as his attorneys-in-fact to sign on his behalf and in his capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ Thomas W. Hofmann

                                                           Thomas W. Hofmann

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as his attorneys-in-fact to sign on his behalf and in his capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ L. Robert Johnson

                                                            L. Robert Johnson

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as her attorneys-in-fact to sign on her behalf and in her capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ Paula A. Johnson

                                                            Paula A. Johnson

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as his attorneys-in-fact to sign on his behalf and in his capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ Douglas A. Michels

                                                            Douglas A. Michels

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as his attorneys-in-fact to sign on his behalf and in his capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ John P. Neafsey

                                                                    John P. Neafsey

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as his attorneys-in-fact to sign on his behalf and in his capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ John H. Weiland

                                                                                John H. Weiland

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as his attorneys-in-fact to sign on his behalf and in his capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ Anthony Welters

                                                                               Anthony Welters

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as his attorneys-in-fact to sign on his behalf and in his capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ Geoffrey F. Worden

                                                                                            Geoffrey F. Worden

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as his attorneys-in-fact to sign on his behalf and in his capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ Robert C. Young

                                                                                Robert C. Young

POWER OF ATTORNEY

The undersigned hereby authorizes and appoints Donald E. Morel, Jr. and John R. Gailey III, and each of them, as his attorneys-in-fact to sign on his behalf and in his capacity as a director of West Pharmaceutical Services, Inc., and to file, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and all amendments, exhibits and supplements thereto.

Date:           February 22, 2011                                                                /s/ Patrick J. Zenner

                      Patrick J. Zenner