| Vegan? No | Vegetarian? No |
Classifications are made based on the available commercial supply of the ingredient, and are made based on the criteria on our classifications page.
Commercially available isinglass are not vegan or vegetarian.
Isinglass is a form of collagen produced from the swim bladders of fish. It has been traditionally used to speed up the refinining process of beer. For example, it was famously used by Guinness, however they stopped using isinglass around 2018.