Suān Zǎo Rén (酸枣仁), known in English as Sour jujube seed (Ziziphus spinosa), is a neutral, sweet and sour Chinese herb from the Calm shen category. It enters the Heart, Liver and Gallbladder channels. Its main action: nourishes Heart and Liver Blood, calms Shen.

Illustration of Suān Zǎo Rén (Sour jujube seed), the dried herb
Illustration of the dried herb. Hear it pronounced in Mandarin:
PinyinSuān Zǎo Rén (Suan Zao Ren)
Chinese酸枣仁
EnglishSour jujube seed
Botanical nameZiziphus spinosa
CategoryCalm shen
NatureNeutral
FlavourSweet, Sour
ChannelsHeart, Liver, Gallbladder
Dosage9–18g
CautionsHeat patterns with excess Fire; diarrhoea

Actions

  • Nourishes Heart and Liver Blood, calms Shen
  • Stops sweating from deficiency

Indications

  • Heart and Liver Blood deficiency: insomnia, palpitations, anxiety, excessive dreaming
  • Night sweats from deficiency

How to remember Suān Zǎo Rén

Calm shen herbs are mostly sweet, and most enter the Heart, Liver and Kidney channels.

You can work these out
Sweet: like most Calm shen herbs
Heart and Liver channels: from its action “Nourishes Heart and Liver Blood”
Learn by heart
Neutral: Calm shen herbs vary in nature
Sour: unusual for Calm shen herbs (most are sweet)
Gallbladder channel: nothing in its group or its actions points to it

Formulas containing Suān Zǎo Rén

Other Calm shen herbs

Test yourself

What is the nature and flavour of Suān Zǎo Rén?

Suān Zǎo Rén is neutral and sweet and sour.

Which channels does Suān Zǎo Rén enter?

Suān Zǎo Rén enters the Heart, Liver and Gallbladder channels.

What are the actions of Suān Zǎo Rén?

Nourishes Heart and Liver Blood, calms Shen; Stops sweating from deficiency.

What is Suān Zǎo Rén used for?

Heart and Liver Blood deficiency: insomnia, palpitations, anxiety, excessive dreaming; night sweats from deficiency.

Which formulas contain Suān Zǎo Rén?

Guī Pí Tāng, Tiān Wáng Bǔ Xīn Dān, Suān Zǎo Rén Tāng and Yǎng Xīn Tāng.

Practise Suān Zǎo Rén and the other 290 herbs

Recognise each herb from its picture, recall its nature, flavour, channels and actions, and review it again just before you would forget it.

Try the 5-question herb quiz

Or practise a TCM case

Shen Study is a study tool. Doses and cautions are as taught in standard Chinese materia medica texts; they are not prescribing advice.