Aldeyra Therapeutics Announces Closing of Initial Public Offering of 1,500,000 Shares of Common Stock

May 7, 2014

BURLINGTON, Mass., May 7, 2014 (GLOBE NEWSWIRE) -- Aldeyra Therapeutics, Inc. (Nasdaq:ALDX) (Aldeyra), a biotechnology company focused on the development of products to treat diseases related to free aldehydes, today announced the closing of its previously announced initial public offering of 1,500,000 shares of its common stock at a price to the public of $8.00 per share. Aldeyra expects gross proceeds from the offering to be $12,000,000, before deducting underwriting discounts and commissions and other estimated offering expenses. Aldeyra has granted the underwriters a 45-day option to purchase up to 225,000 additional shares of common stock to cover over-allotments, if any.

Aegis Capital Corp. acted as the sole book-running manager for the offering.

A registration statement relating to these securities was declared effective by the Securities and Exchange Commission (the "SEC") on May 1, 2014.

The offering was made by means of a prospectus. Copies of the prospectus relating to this offering may be obtained by contacting Aegis Capital Corp, Prospectus Department, 810 Seventh Avenue, 18th Floor, New York, NY 10019, telephone: 212-813-1010, email: prospectus@aegiscap.com. Investors may also obtain these documents at no cost by visiting the SEC's website at http://www.sec.gov.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About Aldeyra Therapeutics

Aldeyra Therapeutics, Inc., is a biotechnology company focused primarily on the development of products to treat diseases thought to be related to endogenous free aldehydes, a naturally occurring class of toxic molecules. The company has developed NS2, a product candidate designed to trap free aldehydes. Aldeyra plans to begin clinical testing of NS2 in 2014 for the treatment of Sjögren-Larsson Syndrome and acute anterior uveitis. NS2 has not been approved for sale in the U.S. or elsewhere. www.aldeyra.com

CONTACT: Investor Contact:

         David Burke/Lee Roth

         The Ruth Group

         Tel: +1 646-536-7009 / 7012

         dburke@theruthgroup.com /

         lroth@theruthgroup.com

Safe Harbor Disclosure

This video content contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and Section 21E of the Securities Exchange Act of 1934, as amended, including statements regarding Aldeyra’s possible or assumed future results of operations, expenses and financing needs, business strategies and plans, research and development plans or expectations, trends, the structure, timing and success of Aldeyra’s planned or pending clinical trials, expected milestones, market sizing, pricing and reimbursement, competitive position, regulatory matters, industry environment and potential growth opportunities, among other things. Actual results or trends could differ materially from those contemplated by these forward-looking statements. For more information, please refer to the risk factors discussed in Aldeyra's periodic filings with the SEC, including the most recent Form 10-Q or 10-K. Any forward-looking statements that are made in the video content are based on assumptions as of the original date of the creation of such video, and Aldeyra undertakes no obligation to update these statements as a result of new information or future events.

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