Gelatin finings are a type of fining agent that is commonly used in winemaking to clarify wine and remove suspended particles. Gelatin is a protein that binds to and removes tannins, colloids, and other particles from wine. This can result in a clearer, more stable wine with improved flavor and aroma.
 
Gelatin finings are derived from animal collagen, so they are not suitable for vegans or vegetarians. However, they are a very effective clarifying agent and are widely used by both commercial and home winemakers.