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Yin Er (Fruiting Body of Tremella, Wood Ear)

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Neutral Yin Er (Fructificatio Tremellae Fuciformis)
Sweet, Bland, Neutral
Fructificatio Tremellae Fuciformis
Tone Marks:
yín ĕr
Alt Names:
Bai Mu Er, Bai Yin Er
White Wood Ear


  • Nourishes Stomach Yin, Generates Fluids, Moistens the Lungs
    For Yin deficiency with heat and possible ascending yang with symptoms including emaciation and heat in the five palms
  • Nourishes Lung Yin
    For Lung yin deficiency or Lung Heat with a dry cough, scanty sputum that is possibly blood streaked and difficult to expectorate.

Contraindications and Cautions

  • Use with caution in cases with cough due to wind cold

Herb-Drug Interactions

  • This section is being researched, and is not completed.

Toxicity and Overdose

  • This section is being researched, and is not completed.


  • 3-9 grams in decoction (Chen)
  • 3-9 grams in decoction(Bensky)


  • Yin Er is often eaten as a sweet treat with Long Yan Rou, Lian Zi, and rock sugar in water.