NEWTOWN, Pa.--(BUSINESS WIRE)--Quinnova Pharmaceuticals, Inc. announced today the commercial launch of Hydro 40™ Foam. Containing 40 percent urea in a water-lipid based foam (utilizing the patented Proderm TechnologyTM), Hydro 40 Foam provides physicians and patients with a cosmetically elegant alternative to the greasy and irritating preparations used in traditional urea therapy for the treatment of xerosis and hyperkeratotic conditions of the skin.