Herb

Man Jing Zi

Shrub chastetree fruit (processed) | 蔓荆子

Also known as:

Vitex Fruit

Man Jing Zi

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Properties

Cool, acrid herbs that release the Exterior (辛凉解表药) · Slightly Cool

Traditionally supports*

Headache Relief Eye Health and Vision Sinus and Nasal Health Joint and Muscle Health

Parts Used

Fruit (果 guǒ / 果实 guǒ shí)

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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About This Herb

Traditional Chinese Medicine background and properties

Herb Description

Man Jing Zi is the dried fruit of the vitex shrub, traditionally used for headaches, eye discomfort, and dizziness caused by Wind-Heat. It is light and ascending in nature, directing its cooling and pain-relieving effects upward to the head and eyes. It is also used as a supporting herb for joint and muscle stiffness related to Wind-Dampness.

Herb Category

Cool, acrid herbs that release the Exterior (辛凉解表药)

Main Actions

  • Disperses Wind-Heat
  • Clears the Head and Brightens the Eyes
  • Dispels Wind and Stops Pain
  • Drains Dampness and Expels Wind

How These Actions Work

'Disperses Wind-Heat' means Man Jing Zi helps the body expel pathogenic Wind and Heat from the exterior, particularly from the upper body. When a person catches a cold or infection of the Wind-Heat type (with fever, headache, sore throat), this herb is used to gently push the pathogen out. However, it is not a strong exterior-releasing herb on its own. Its strength lies specifically in addressing headache and eye symptoms that accompany Wind-Heat invasion.

'Clears the head and benefits the eyes' is the signature action of this herb. It is light in weight and ascending in nature, carrying its therapeutic effects upward to the head and face. This makes it especially useful for headaches (including migraines), dizziness, blurred vision, red and painful eyes, excessive tearing, and a sensation of heaviness in the head. Classical texts describe it as able to 'brighten the eyes' and 'make the ears and eyes sharp.'

'Dispels Wind and relieves pain' describes its ability to address pain caused by Wind, especially headache. It is considered one of the important herbs for treating headache due to Wind in the Taiyang (Bladder) channel, which runs over the top and back of the head. It is commonly paired with other Wind-dispelling and pain-relieving herbs like Chuan Xiong and Gao Ben for this purpose.

'Drains Dampness and expels Wind' refers to its supporting role in treating joint and muscle complaints from Wind-Dampness. When Wind and Dampness invade the surface of the body, they can cause heavy, stiff, aching limbs and difficulty turning the body. Man Jing Zi assists stronger Wind-Dampness herbs in these formulas.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Man Jing Zi is traditionally associated with these specific patterns.

The following describes this herb's classification within Traditional Chinese Medicine theory and is provided for educational purposes only.

Why Man Jing Zi addresses this pattern

Man Jing Zi is pungent, bitter, and slightly cool, making it well suited to disperse Wind-Heat from the exterior, particularly from the head and face. Its ascending, lightweight nature directs its actions upward, clearing the head of Wind-Heat pathogen. While not a powerful exterior-releasing herb, it specifically targets the headache, eye pain, and dizziness that characterize Wind-Heat invasion of the upper body. Its bitter flavor clears Heat while its pungent flavor disperses Wind.

A practitioner would look for one or more of these signs

Headaches

Headache from Wind-Heat, especially at the top or back of the head

Red Eyes

Red, painful, swollen eyes with tearing

Dizziness

Dizziness and a heavy sensation in the head

Fever

Low-grade fever with mild chills from exterior Wind-Heat

TCM Properties

Temperature

Slightly Cool

Taste

Acrid / Pungent (辛 xīn), Bitter (苦 kǔ)

Channels Entered
Urinary Bladder Liver Stomach
Parts Used

Fruit (果 guǒ / 果实 guǒ shí)

This is partial information on the herb's TCM properties. More detailed information is available on the herb's dedicated page

Product Details

Manufacturing, supplier, and product specifications

Product Type

Granules

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Botanical & Sourcing

Quality Indicators

Good quality Man Jing Zi fruits are spherical, 4 to 6 mm in diameter, plump, and full-bodied. The surface should be grey-black or dark brown, covered with a distinctive greyish-white powdery frost of fine hairs, with four shallow longitudinal grooves visible. The base should retain its grey-white persistent calyx (covering one-third to two-thirds of the fruit) and a short fruit stalk. The fruit body should feel light but firm and tough, difficult to crush. When cut in cross-section, the fruit wall is greyish-yellow with brownish oil dots, revealing four chambers each containing one white, oily seed. The aroma should be distinctively aromatic and fragrant, with a mild, slightly acrid taste. Avoid fruits that are shrivelled, lack fragrance, are excessively broken, or contain excessive stem debris.

Primary Growing Regions

The single-leaf variety (Vitex trifolia var. simplicifolia) is mainly produced in Shandong, Jiangxi, Zhejiang, and Fujian provinces. Jiangxi province is particularly noted for high-quality production and is one of its key dao di yao cai (terroir) regions, where Man Jing Zi grows abundantly along lakeshores and coastal sandy areas. The three-leaf variety (Vitex trifolia) is mainly produced in Hainan, Guangxi, and Yunnan. Additional production occurs in Henan, Jiangsu, Anhui, Hunan, Hubei, Guangdong, and Taiwan. The plant grows naturally along coastlines, riverbanks, and lakeshores throughout southern and eastern China.

Harvesting Season

Autumn (September to November), when the fruits are fully mature. Fruits ripen progressively and are harvested in batches as they mature.

Supplier Information

Treasure of the East

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Miscellaneous Info

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Usage & Safety

How to use this herb and important safety information

Important Medical Disclaimer

The information provided here is for educational purposes only and is not intended as medical advice or to replace consultation with a qualified healthcare professional. This herb is a dietary supplement and has not been evaluated by the FDA. It is not intended to diagnose, treat, cure, or prevent any disease.

Always consult with a qualified healthcare provider, particularly if you are pregnant, nursing, have a medical condition, or are taking other medications. Discontinue use and consult your healthcare provider if you experience any adverse reactions.

Recommended Dosage

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Instructions for safe storage and consumption

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Traditional Dosage Reference

Standard

5-10g

Maximum

Up to 12-15g in clinical practice for severe headache or eye conditions, under practitioner supervision. Zhang Shouyi (张寿颐) noted dosages of up to 3-4 qian (approximately 9-12g) for severe cases.

Notes

Use the lower end of the dosage range (5-6g) for mild Wind-Heat headache as part of an exterior-releasing formula. Use higher doses (9-10g) for more stubborn headache, migraine, or eye conditions. The raw (unprocessed) form is more cooling and better for dispersing Wind-Heat with acute eye redness and head pain. The dry-fried (chao) form has reduced acrid dispersing action and cooler nature, making it more suitable for raising clear Yang Qi to the head and for damp obstruction pain in the joints. It is recommended to lightly crush the fruit before decocting to improve extraction of active components.

Processing Methods

Processing method

The raw fruit is stir-fried over a gentle flame until the surface darkens and the white calyx membrane at the base turns deep yellow. It is then removed and the white membrane is rubbed off. The fruit is crushed before use in decoctions.

How it changes properties

Stir-frying reduces the slightly cool temperature and moderates the pungent dispersing action. The processed form is less focused on clearing exterior Wind-Heat and instead becomes better at raising clear Yang Qi and at relieving Wind-Dampness pain in the joints and sinews. It is also considered gentler on the Stomach.

When to use this form

Used when the clinical goal is to raise clear Yang to the head (for hearing loss, tinnitus, and cloudy vision from Qi Deficiency) or for Wind-Dampness joint pain, rather than treating acute Wind-Heat exterior conditions. This is the most commonly used processed form today.

Toxicity Classification

Non-toxic

Man Jing Zi is classified as non-toxic. Toxicity studies have shown that the water decoction at doses of 270 g/kg by oral gavage or 90 g/kg by intraperitoneal injection in mice resulted in full survival, corresponding to 900 and 300 times the clinical dose respectively. The LD50 of its alcohol extract in mice is 629.78 g (raw herb)/kg by oral gavage, indicating a very wide safety margin. No special toxicity concerns are associated with normal clinical use.

Contraindications

Caution

Stomach Qi deficiency (胃虚). Man Jing Zi's acrid, dispersing nature can impair digestion in people with weak Stomach Qi, potentially causing nausea, bloating, or loose stools. Classical sources including Yi Xue Qi Yuan (《医学启源》) specifically warn that those with Stomach deficiency should avoid it as it may generate Phlegm.

Caution

Blood deficiency with internal Heat causing headache or dizziness. When head and eye symptoms arise from Blood deficiency rather than external Wind-Heat, Man Jing Zi's dispersing action can further deplete Blood and worsen the condition. The Ben Cao Jing Shu (《本草经疏》) states this herb should be avoided when head and eye pain is not caused by Wind but by Blood deficiency with Fire.

Caution

Yin deficiency with rising Heat. The herb's upward-dispersing and acrid qualities may aggravate Yin deficiency patterns, worsening symptoms of internal Heat and depleting fluids further.

Caution

Weakness and atrophy of sinews or joints due to Yang deficiency and Blood exhaustion (阳虚血涸筋衰). The Ben Cao Hui Yan (《本草汇言》) warns that when limb weakness and cramping arise from internal deficiency rather than Wind-Damp invasion, this herb should not be used.

Avoid

Known allergy or hypersensitivity to Vitex species. Individuals who have experienced allergic reactions to plants of the Vitex genus should avoid this herb.

Classical Incompatibilities

The Ben Cao Jing Ji Zhu (《本草经集注》) by Tao Hongjing records that Man Jing Zi is "incompatible with" (恶, e, meaning mutually antagonistic) Wu Tou (乌头, Aconite) and Shi Gao (石膏, Gypsum). This is not from the Eighteen Incompatibilities or Nineteen Mutual Fears lists proper, but is a separately recorded classical antagonism that practitioners traditionally observe.

Special Populations

Pregnancy

No specific pregnancy contraindication is recorded in classical or modern pharmacopoeia sources for Man Jing Zi. However, its acrid, dispersing nature and upward-moving action suggest caution during pregnancy, particularly in the first trimester. Its mild ability to move Qi and disperse could theoretically be unsettling for a vulnerable pregnancy. Pregnant women should only use it under practitioner guidance and at conservative doses.

Breastfeeding

No specific contraindication for breastfeeding is documented in classical or pharmacopoeia sources. However, as with most acrid, dispersing herbs, caution is advisable. There is insufficient modern data on whether active compounds like casticin transfer into breast milk. Use only under practitioner guidance during breastfeeding.

Pediatric Use

Man Jing Zi may be used in children at appropriately reduced doses (typically one-third to one-half of the adult dose depending on age), and is sometimes included in pediatric formulas for Wind-Heat headache or eye conditions. Due to its dispersing nature, it should be used short-term and with caution in children with weak digestion or Spleen-Stomach deficiency. Not commonly used as a standalone herb in pediatric practice.

Drug Interactions

No well-documented interactions with specific pharmaceutical drugs have been established through clinical trials. However, based on its known pharmacological properties, the following theoretical considerations apply:

  • Anticoagulant/antiplatelet medications: Pharmacological studies show Man Jing Zi has mild anticoagulant activity. Concurrent use with warfarin, heparin, or antiplatelet drugs should be monitored.
  • Antihypertensive medications: Animal studies suggest a blood-pressure-lowering effect. Combination with antihypertensive drugs could theoretically potentiate hypotension.
  • Sedative medications: Man Jing Zi has demonstrated mild sedative and analgesic effects in animal studies. Concurrent use with CNS depressants or sedative medications may have additive effects.

These interactions are theoretical and based on preclinical pharmacological data rather than clinical case reports. Patients taking any of the above medications should inform their healthcare provider before using Man Jing Zi.

Dietary Advice

When taking Man Jing Zi for Wind-Heat patterns (headache, eye redness), avoid greasy, fried, and spicy foods that may generate further Heat, as well as alcohol which can worsen head congestion. For those with weak digestion who are prescribed this herb, eating warm, easily digestible foods and avoiding cold, raw foods will help offset its potentially taxing effect on Stomach Qi.

Cautions & Warnings

Although this formula is typically safe for most individuals, it may cause side effects in some people. Pregnant women, nursing mothers, postpartum women, and those with liver disease should use the formula with caution.

As with any Chinese herbal remedy, it is advisable to seek guidance from a qualified TCM practitioner before beginning treatment.