Tremella fuciformis

Tier 3 — weak evidence · Mushroom · Skin hydration · Polysaccharide

'Snow fungus' polysaccharide with cosmetic-grade evidence for skin hydration (oral and topical). Small RCTs show modest moisture/elasticity benefit. Generally well-tolerated; quality varies by extract method (hot water vs alcohol).

Dose: 100-1,000 mg/day extract