13D Filing: Sabby Capital and Strata Skin Sciences Inc. (SSKN)

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EXHIBIT 1

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JOINT FILING AGREEMENT

The undersigned hereby agree that this
Statement on Schedule 13D with respect to the beneficial ownership of shares of Common Stock of STRATA Skin Sciences, Inc. is filed
jointly, on behalf of each of them.

Dated: January 2, 2018

Sabby Healthcare Master Fund, Ltd.

By:  /s/ Harry Thompson

Name: Harry Thompson

Title: Authorized Person of TDF Management
Ltd., a Director

Sabby Volatility Warrant Master Fund, Ltd.

By:  /s/ Harry Thompson

Name: Harry Thompson

Title: Authorized Person of TDF Management
Ltd., a Director

Sabby Management, LLC

By:  /s/ Robert Grundstein

Name: Robert Grundstein

Title: Chief Operating Officer

/s/ Hal Mintz

Hal Mintz

Follow Strata Skin Sciences Inc. (NASDAQ:SSKN)

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