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We consent to the inclusion in the Registration Statements on Form S-1 (Nos. 333-274972 and 333-276205) of GRI Bio, Inc. (“the Company”), of our report dated March 28, 2024, on our audits of the consolidated financial statements of GRI Bio, Inc. as of December 31, 2023 and 2022, and for each of the years then ended, which report is included in this Annual Report on Form 10-K to be filed on or about March 28, 2024. Our report includes an explanatory paragraph about the existence of substantial doubt concerning the Company’s ability to continue as a going concern.