Gelatin and gelatin derivatives, isinglass, and bone glues are all collagen. They are obtained from animal sources such as skin and bones. While gelatin and its derivatives are mainly obtained from bovine hide and porcine skin, isinglass and bone glues are largely derived from the dried swim bladder of fish and bovine bones. Gelatin and gelatin derivatives, isinglass, and bone glues are used in the Food and Beverage, Pharmaceuticals, Photography, Book Publishing, and Breweries industries.