Krystal Biotech, Inc. Common Stock, also called Krystal Biotech, is a gene therapy company, which engages in developing and commercializing treatment for patients suffering from dermatological diseases. Read More It developed a gene therapy platform, which company refer to as the Skin TARgeted Delivery platform, or STAR-D platform, that consists of a patent pending engineered viral vector based on herpes simplex virus 1, or HSV-1, and skin-optimized gene transfer technology, to develop off-the-shelf treatments for dermatological diseases for which company believe there are no known effective treatments. The company was founded by Suma M. Krishnan in December 2017 and is headquartered in Pittsburgh, PA.