The three are essentially the same type of substance\x0d\Gelatin tablets---gelatin tablets, gelatin is the English name of gelatin. The flaky ones are called gelatin flakes, and the powdery ones are called gelatine powder. Most of the boxed products on the market are isinglass. \x0d\Gelatin--Collagen extracted from animal sources is called gelatin. The main materials are pig and cow skin or bones, but also chicken and fish. \x0d\Isinglass--specifically refers to gelatin made from fish skin. \x0d\How to distinguish? \x0d\Gelatin sheets are transparent sheets. \x0d\Gelatin is a light yellow powder, basically odorless. \x0d\Isinglass is also yellow powder and has a light fishy smell. \x0d\If there is anything wrong, please point it out, thank you