Biofrontera AG subsidiary files suit against DUSA Pharmaceuticals, Inc.

Leverkusen, Germany, July 12, 2018 - Biofrontera Inc. ("Biofrontera"), a wholly owned subsidiary of Biofrontera AG (NASDAQ: BFRA; Frankfurt Stock Exchange: B8F), announced that on July 6, 2018, Biofrontera filed unfair competition and tortious interference claims against DUSA Pharmaceuticals, Inc. ("DUSA") in Orange County Superior Court in California.

The lawsuit alleges that "DUSA provides excessive free product samples to physicians to offset their purchasing costs" in violation of federal law; that "DUSA has created an elaborate Average Sales Price scheme to inflate DUSA's product's profitability" in violation of state law; and that DUSA has improperly interfered with Biofrontera's relationships with one or more dermatology groups in violation of state law. The lawsuit seeks damages from and injunctive relief against DUSA.

Three days later, on July 9, 2018, DUSA asserted trade secret misappropriation and tortious interference claims against Biofrontera in federal court in Massachusetts. DUSA's subsequent claims are without merit, and Biofrontera intends to vigorously fight them.

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About Biofrontera:

Biofrontera AG is an international biopharmaceutical company specializing in the development and commercialization of a platform of pharmaceutical products for the treatment of dermatological conditions and diseases caused primarily by exposure to sunlight that results in sun damage to the skin. Biofrontera's approved products focus on the treatment in the U.S. and Europe of actinic keratoses, which are skin lesions that can sometimes lead to skin cancer, as well as the treatment of certain forms of basal cell carcinoma in the European Union. American Depositary Shares representing Biofrontera's ordinary shares are listed on the NASDAQ Capital Market under the symbol "BFRA", and Biofrontera's ordinary shares are listed in the Frankfurt Stock Exchange (B8F, ISIN: DE0006046113). Information is also available at www.biofrontera.com.

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