Tremella (Tremella fuciformis)

Known as "snow fungus" or "silver ear," this translucent, gelatinous mushroom is a classic Traditional Chinese Medicine tonic and an increasingly popular skincare ingredient.

Not medical advice. For education only, whether used as food, a supplement, or a topical ingredient.

What the evidence shows

Tremella's polysaccharides are strong natural humectants — laboratory work has found a low concentration of tremella polysaccharide can hold moisture in skin comparably to a low concentration of hyaluronic acid, and it has documented antioxidant activity. This topical/cosmetic evidence is genuinely promising, though most studies remain preclinical or small-scale. Internal "beauty," immune, and antidiabetic claims rest mainly on cell and animal studies, not human trials.

Evidence level: preliminary for topical hydration; preclinical for internal/immune claims.

How it's used

Dried whole fungus (rehydrated for soups and sweet TCM tonics), powder, capsules, and as an extract in skincare formulations.

Safety

Tremella is widely eaten as food across East Asia and is considered very low risk; dermatological assessments rate topical tremella polysaccharide as non-irritating and non-sensitising for most people. As with any fungus, those with mushroom allergies should be cautious. Safety data for concentrated internal extracts in pregnancy and breastfeeding are limited — use food-level amounts only.

Quality notes

For skincare, look for a stated Tremella fuciformis polysaccharide concentration rather than a vague "snow mushroom extract" listing.

Sources

Explore the other medicinal mushrooms or our full plant catalogue.