Gelatin is a translucent, colorless, crisp, and more or less tasteless solid obtained from collagen in the skin and bones of animals. It is commonly used as a gelling agent in the food, pharmaceutical, photography and cosmetics industries. Materials that contain gelatin or something with a similar function are called gelatin. Gelatin is an immutable species hydrolyzed from collagen and is classified as a food substance. Gelatin is used to make some sticky candies as well as products such as jellies, marshmallows and some low-fat yogurts.