Mr. Peter Puccetti reports

COSCIENS COMMENTS ON UNUSUAL MARKET ACTIVITY

Cosciens Biopharma Inc. is issuing this news release in response to unusual market activity. While the company does not normally comment on market activity or market speculation, the company confirms that it is not aware of any material undisclosed information relating to the company that would account for the recent increase in trading activity in, and trading price of, the company's common shares.

About Cosciens Biopharma Inc.

Cosciens is a life-science company focused on the development of natural, plant-based active ingredients used in leading skincare brands worldwide.