Tremella (Tremella fuciformis) is a jelly fungus in the Tremellaceae family traditionally associated with East Asian food and tonic use. It produces pale, ruffled, gelatinous fruiting bodies, and the fruiting body is the part used in culinary and herbal-style preparations.

Often called snow fungus or silver ear fungus, tremella has a long history in soups, sweet broths, and nourishing traditional formulas. In recent years it has also become popular in beauty-oriented wellness products because of its moist, delicate texture and association with traditional tonic foods.