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, 2012 and all amendments, exhibits and supplements thereto.

Date: February 21, 2013

/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, 2012 and all amendments, exhibits and supplements thereto.

Date: February 21, 2013

/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, 2012 and all amendments, exhibits and supplements thereto.

Date: February 21, 2013

/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, 2012 and all amendments, exhibits and supplements thereto.

Date: February 21, 2013

/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, 2012 and all amendments, exhibits and supplements thereto.

Date: February 21, 2013

/s/ Patrick J. Zenner

Patrick J. Zenner

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, 2012 and all amendments, exhibits and supplements thereto.

Date: February 21, 2013

/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, 2012 and all amendments, exhibits and supplements thereto.

Date: February 21, 2013

/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, 2012 and all amendments, exhibits and supplements thereto.

Date: February 21, 2013

/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, 2012 and all amendments, exhibits and supplements thereto.

Date: February 21, 2013

/s/ William F. Feehery

William F. Feehery