Exhibit 24.1

LIMITED POWER OF ATTORNEY

Know all by these presents, that each of the undersigned hereby makes, constitutes and appoints Ford Worthy, Amy M. Batten, Amanda L. Keister and James R. Jolley, and each of them singly, as such undersigned’s true and lawful attorneys-in-fact with full power and authority as hereinafter described to:

execute for and on behalf of the undersigned, in the undersigned’s capacity as a beneficial owner of securities of Kezar Life Sciences, Inc. (the “Company”), (i) Forms 3, 4, and 5 (including amendments thereto) in accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules thereunder, (ii) Form 144 in accordance with Rule 144 under the Securities Act of 1933, as amended (the “Securities Act”), and (iii) Schedules 13D and 13G (including amendments thereto) in accordance with Sections 13(d) and 13(g) of the Exchange Act and the rules thereunder;

do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5 (including amendments thereto), Form 144, or Schedule 13D or 13G (including amendments thereto) and timely file such form with the United States Securities and Exchange Commission (the “SEC”) and any stock exchange or similar authority, including, but not limited to, executing a Form ID for and on behalf of the undersigned and filing such Form ID with the SEC; and

take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Limited Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact’s discretion.

The undersigned hereby grants to each attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all the acts such attorney-in-fact, or such attorney-in-fact’s substitute or substitutes, shall lawfully do or cause to be done by virtue of this Limited Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that each of the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, is not assuming any of the undersigned’s responsibilities to comply with Sections 13 or 16 of the Exchange Act or Rule 144 under the Securities Act.

The undersigned hereby revokes any and all prior powers of attorney executed for this purpose. This Limited Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 (including amendments thereto), Form 144, and Schedules 13D and 13G (including amendments thereto) with respect to the undersigned’s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to each of the foregoing attorneys-in-fact. In addition, at such time as any attorney-in-fact (i) ceases to serve as an employee or counsel of the Company or any subsidiary of the Company or (ii) resigns as attorney-in-fact by the execution of a written resignation delivered to the undersigned or the Company, without any action on the part of the undersigned, this Limited Power of Attorney shall be partially revoked solely with respect to such individual; such individual shall cease to be an attorney-in-fact under this Limited Power of Attorney; and the authority of the other attorneys-in-fact then existing hereunder shall remain in full force and effect.

IN WITNESS WHEREOF, the undersigned has caused this Limited Power of Attorney to be executed as of this 20^th day of June, 2018.

		A.M. Pappas Life Science Ventures V, LP

		By:	AMP&A Management III, LLC
			General Partner

		/s/ Ford S. Worthy
		By:	Ford S. Worthy
		Title:	Partner & Chief Financial Officer


		PV V CEO Fund, LP

		By:	AMP&A Management III, LLC
			General Partner

		/s/ Ford S. Worthy
		By:	Ford S. Worthy
		Title:	Partner & Chief Financial Officer


		Chiesi Ventures, LP

		By:	Chiesi Ventures, Inc.
			General Partner

		/s/ Giacomo Chiesi
		By:	Giacomo Chiesi
		Title:	Managing Partner


		Giacomo Chiesi

		/s/ Giacomo Chiesi


		AMP&A Management V, LLC


		/s/ Ford S. Worthy
			By: Ford S. Worthy
			Title: Partner & Chief Financial Officer


		Pappas Capital, LLC

		/s/ Ford S. Worthy
			By: Ford S. Worthy
			Title: Partner


		Arthur M. Pappas

		/s/ Arthur M. Pappas


		Chiesi Ventures, Inc.

		By:	Pappas Capital, LLC
			Authorized Signatory


		/s/ Ford S. Worthy
		By:	Ford S. Worthy
		Title:	Partner

Chiesi Ventures, Inc. 3