Suān Zǎo Rén (酸枣仁) — Sour Jujube Seed

On this page

1. Overview
2. Properties
3. Actions and indications
4. Key formulas
5. Modern research
6. Cautions and contraindications
7. Treatment at my clinic

1. Overview

Suān Zǎo Rén (酸枣仁) — Ziziphus jujuba var. spinosa — is known in English as Sour Jujube seed / Wild jujube seed. It belongs to the category of Herbs that calm the spirit in the Chinese Materia Medica and is one of the most important and widely prescribed herbs in traditional Chinese medicine (TCM). It is used in Chinese herbal medicine both as a component of classical herbal formulas and as a significant individual herb in tailored prescriptions.

I prescribe Suān Zǎo Rén as part of bespoke herbal formulas from pharmaceutical-grade granules sourced from Sun Ten in Taiwan — independently tested to the highest international quality and safety standards. Herbs are never prescribed individually outside a properly balanced formula; they are always combined with other herbs selected to match the patient’s individual TCM pattern. Online consultations are available for patients who cannot attend my clinic in person.

2. Properties

3. Actions and indications

Principal actions

1. Nourishes Heart Blood and calms the spirit
2. Nourishes Liver Blood
3. Stops sweating
4. Clears Empty Heat

Indications

1. Insomnia — the most important single herb for Heart Blood deficiency insomnia in TCM
2. Palpitations, restlessness and anxiety from Heart and Liver Blood deficiency
3. Night sweats and spontaneous sweating from Yin deficiency
4. Irritability and emotional instability from Liver Blood deficiency
5. Anxiety and worry from Heart Yin deficiency

4. Key formulas containing Suān Zǎo Rén

Suān Zǎo Rén is an ingredient in many classical formulas. The following are among the most important:

• Suan Zao Ren Tang
• Tian Wang Bu Xin Dan
• Gui Pi Tang
• Suan Zao Ren He Gui Pi Tang

See the full Chinese herbal medicine formula directory for detailed information on all 70 classical formulas.

5. Modern research

Ziziphus jujuba var. spinosa (Suan Zao Ren) is the most researched Chinese sedative herb and has been confirmed in multiple clinical and preclinical studies. Key bioactive constituents include jujubosides (saponins — jujuboside A and B), flavonoids (spinosin, swertish, zivulgarin), fatty acids and polysaccharides. Research confirms sedative and hypnotic effects through GABA-A receptor modulation (similar mechanism to benzodiazepines but without dependency), anxiolytic effects, cardioprotective effects, antioxidant activity and blood glucose-lowering properties. Spinosin and jujuboside A are the primary sedative constituents. Clinical studies confirm improvements in sleep quality, sleep onset latency and total sleep time. The formula Suan Zao Ren Tang has been studied in RCTs confirming its efficacy for insomnia.

6. Cautions and contraindications

Generally very safe. Use with caution in patients with excess patterns — Phlegm-Fire disturbing the Heart — where sedation alone is not the appropriate approach. Mild drowsiness may occur at high doses.

Important: Chinese herbs should always be prescribed by a fully qualified herbalist who is a member of the Register of Chinese Herbal Medicine (RCHM). Never self-prescribe or self-administer Chinese herbs without professional guidance. Dr (TCM) Attilio D’Alberto is a member of the RCHM and the British Acupuncture Council with over 25 years of clinical experience.

7. Treatment at my clinic

I prescribe Suān Zǎo Rén as part of tailored herbal formulas for a range of conditions including Insomnia, Anxiety, Stress, Depression. Every prescription is individually formulated following a full TCM assessment and adjusted throughout treatment as the pattern responds.

I see patients in person at my clinic in Wokingham, Berkshire. Online Chinese herbal medicine consultations are available for patients throughout the UK and internationally, with herbs dispensed by post. Visit the prices page for consultation fees.

Return to the Chinese herb directory or the Chinese herbal medicine main page.