Preliminary Proxy Statement

Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

Definitive Proxy Statement

Definitive Additional Materials

Soliciting Material Pursuant to §240.14a-12

No fee required.

Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

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Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

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Meeting Information

Meeting Type:         Annual Meeting

CHURCH & DWIGHT CO., INC.

PRINCETON SOUTH CORPORATE PARK

500 CHARLES EWING BOULEVARD

EWING, NJ 08628

Location:    Church & Dwight Co., Inc.

    Princeton South Corporate Park

    500 Charles Ewing Boulevard

    Ewing, NJ 08628

You are receiving this communication because you hold shares in the company named above.

This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).

We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

Proxy Materials Available to VIEW or RECEIVE:

NOTICE OF ANNUAL MEETING AND PROXY STATEMENT

2018 ANNUAL REPORT TO STOCKHOLDERS

How to View Online:

How to Request and Receive a PAPER or E-MAIL Copy:

If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:

1) BY INTERNET:

2) BY TELEPHONE:    

3) BY E-MAIL*:

*    If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow   (located on the following page) in the subject line.

Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 18, 2019 to facilitate timely delivery.

— How To Vote —

Please Choose One of the Following Voting Methods

Vote In Person: Many stockholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares.

Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow     (located on the following page) available and follow the instructions.

Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

Vote By Telephone: You can vote by telephone by calling the toll-free number that appears on the proxy card.