We use essential cookies (authentication, your saved goals/stack) by default. With your permission we’ll also enable privacy-respecting analytics (Vercel Web Analytics, anonymous load-time metrics) and error-replay diagnostics (Sentry — DOM snapshots only when an error fires) so we can fix bugs faster. Learn more about cookies
Tremella fuciformis (Snow Fungus)
A culinary mushroom whose polysaccharides hold a lot of water in the lab. The honest verdict: the popular skin-hydration claims rest on mechanism, not human trials — there are no skin-outcome RCTs, only a couple of small cognition studies.
What the evidence says
Most Tremella studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from high-quality randomised trials published 2012–2026 with a typical study size of 64 participants.
Based on 12 studies · 2 RCTs · 191 total participants
Confidence
Low confidenceBy outcome
Strong mechanistic and traditional support for skin hydration and immune modulation, but human evidence is thin — mostly reviews plus a couple of small cognitive RCTs, with no direct skin-outcome RCTs or meta-analyses.
No trials currently enrolling · 1 completed on ClinicalTrials.gov
Registered trials show research momentum for Tremella, not proof of effect — a registration is a plan, and posted results are sponsor-reported, not peer-reviewed. They are never counted toward the evidence rating above.
Browse these trials on ClinicalTrials.govClinicalTrials.gov · as of Oct 2026
Tremella (Snow Fungus, Silver Ear) is a culinary mushroom used in Chinese medicine, traditionally for skin and beauty. Its polysaccharides hold large amounts of water and show immune-modulating activity in lab studies — the basis for comparisons to hyaluronic acid.
But the marketed skin-hydration benefit has not been tested in human skin-outcome RCTs; the only human trials measured cognition (and one used a combination beverage, not Tremella alone). It's well-tolerated, but the headline claims are mechanistic, not clinically proven.
Polysaccharides hold 500x their weight in water
Reduces oxidative stress and skin aging
Polysaccharides modulate immune cells in laboratory studies
How Tremella works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
Traditional food use; supplements should be discussed with provider
A clinically important interaction between tremella and each listed anticoagulant or antiplatelet medicine has not been established from the evidence supplied here. Ask a pharmacist to assess the exact supplement, medicine and other bleeding risks before use. This possible interaction has not been individually evaluated for this supplement; its likelihood and severity are unknown. If you take an anticoagulant or antiplatelet medicine, ask a pharmacist or prescriber before using this product. Do not stop or change prescribed medicines based on this notice.
Tip: Reduce dose
Tremella has an evidence score of 4/10 — emerging evidence based on 12 indexed studies. A culinary mushroom whose polysaccharides hold a lot of water in the lab. The honest verdict: the popular skin-hydration claims rest on mechanism, not human trials — there are no skin-outcome RCTs, only a couple of small cognition studies. Representative study: PMID 37836504.
The commonly studied dose of Tremella is 1-3g dried mushroom or 500-1000mg extract daily. Individual needs vary — start at the lower end of the range and adjust based on how you respond.
Timing is flexible for Tremella — consistent daily use matters more than the time of day. Tremella fuciformis (silver ear mushroom) is rich in polysaccharides with high water-holding capacity and immunomodulatory properties.
Tremella is generally well-tolerated and considered safe for most healthy adults at recommended doses. Reported side effects are uncommon and include GI upset. Use caution if any of these apply to you: Known allergy or hypersensitivity to Tremella or related compounds.
Smoking status: not checked. Vitamin A: what these mean for you changes depending on whether you smoke or used to, and you have not told us. That check was skipped.
Shiitake
Too few graded studiesA culinary mushroom containing lentinan and eritadenine. Human evidence is limited to small RCTs — preliminary immune signals and a modest triglyceride effect, with no large trials or meta-analyses.
Vitamin C
Likely helpsHumans cannot synthesize this vitamin — required for collagen production, immune cell function, and iron absorption; athletes need more.
Vitamin D3
Probably helpsHormone-like vitamin that regulates 1,000+ genes — deficiency is widespread and linked to poor immunity, depression, and bone loss.
Vitamin A
Limited supportFat-soluble vitamin that maintains night vision, drives immune cell differentiation, and regulates skin turnover and cellular growth.
Explore: Best supplements for Vitality & LongevityBest supplements for Body Health
Reviewed by Dr. Baher Al Hakim · Last reviewed May 2026 · evidence from 12 studies · how we score · editorial policy
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
Tap node to isolate • Pinch to zoom • Tap edge for research