Herb

Yu Jin

Curcuma root | 郁金

Also known as:

Tumeric Tuber

Yu Jin

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Properties

Blood-invigorating and stasis-dispelling herbs (活血化瘀药) · Cold

Traditionally supports*

Liver and Gallbladder Health Emotional Wellbeing Pain Management Menstrual Health

Parts Used

Tuber (块茎 kuài jīng / 块根 kuài gēn)

*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

Yu Jin (turmeric tuber) is a versatile herb from the ginger family that helps relieve pain by improving Qi and Blood circulation. It is especially valued for its ability to ease emotional tension, calm the mind, and support liver and gallbladder health. Commonly used for chest and rib pain, menstrual discomfort, mood disturbances, and jaundice.

Herb Category

Blood-invigorating and stasis-dispelling herbs (活血化瘀药) Qi-regulating herbs (理气药)

Main Actions

  • Invigorates Blood and Alleviates Pain
  • Courses the Liver and Resolves Constraint
  • Clears the Heart and cools the Blood
  • Benefits the Gallbladder and reduces jaundice
  • Opens the Orifices and Revives Consciousness

How These Actions Work

'Invigorates Blood and alleviates pain' means Yu Jin helps get stuck Blood moving again. When Blood stagnates, it can cause sharp, stabbing pains in the chest, sides, or abdomen, as well as menstrual cramps. Yu Jin's acrid (pungent) taste gives it the ability to disperse and move, while its bitter taste helps it push downward. This makes it especially useful for pain caused by both Qi stagnation and Blood stasis occurring together.

'Promotes the movement of Qi and resolves constraint' refers to Yu Jin's talent for releasing pent-up Qi, particularly in the Liver. When emotions like frustration or anger cause Liver Qi to become stuck, it can produce a feeling of tightness in the chest and ribs, irritability, or a sensation of something stuck in the throat. Yu Jin's pungent, scattering nature helps restore the smooth flow of Qi. Classical texts describe it as "a Qi herb within the Blood division" (血中之气药), meaning it works at the intersection of Qi and Blood.

'Clears the Heart and cools the Blood' draws on Yu Jin's cold nature and its entry into the Heart channel. When Heat invades the Blood or when Phlegm-Heat clouds the Heart's awareness, it can cause confused thinking, delirium, or even loss of consciousness. Yu Jin cools this internal Heat and helps restore mental clarity. It is also used when Blood Heat causes abnormal bleeding such as nosebleeds, vomiting blood, or blood in the urine.

'Benefits the Gallbladder and reduces jaundice' reflects Yu Jin's ability to clear Damp-Heat from the Liver and Gallbladder. When Damp-Heat accumulates in these organs, it can cause yellowing of the skin and eyes (jaundice), dark urine, and discomfort in the rib area. Yu Jin helps clear this stagnant Damp-Heat and promote bile flow.

'Opens the orifices' refers to Yu Jin's capacity to help restore consciousness in acute situations where Phlegm or Heat blocks the Heart's sensory openings. This is relevant in conditions like epilepsy, mania, or sudden loss of consciousness from febrile disease.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Yu Jin 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 Yu Jin addresses this pattern

When the Liver's free-flowing function becomes constrained, Qi stagnation leads to Blood stasis over time. Yu Jin is uniquely suited for this pattern because it simultaneously moves both Qi and Blood. Its acrid taste disperses Qi stagnation while its bitter taste drives downward to break up Blood stasis. Because Yu Jin is cold in nature, it is especially appropriate when this stagnation generates Heat, which commonly manifests as irritability alongside the pain. Its entry into the Liver channel directs these actions precisely where they are needed.

A practitioner would look for one or more of these signs

Chest Pain

Stabbing pain in the chest or under the ribs

Amenorrhea

Menstrual pain with dark clots

Breast Redness

Breast distension and pain before menses

Hypochondriac Pain

Distending or stabbing pain along the rib cage

TCM Properties

Temperature

Cold

Taste

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

Channels Entered
Heart Liver Lungs
Parts Used

Tuber (块茎 kuài jīng / 块根 kuài gēn)

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

Wen Yu Jin (温郁金): Good quality pieces are long-oval or egg-shaped, 3.5-7 cm long, 1.2-2.5 cm across, with grey-brown to grey-tan skin showing irregular vertical wrinkles. The cross-section should be grey-brown, horn-like (translucent and glossy), with a clearly visible inner ring (endodermis). Aroma is faintly fragrant; taste is slightly bitter. Huang Si Yu Jin (黄丝郁金): Good quality is spindle-shaped, 2.5-4.5 cm long, with grey-yellow to brownish skin and fine wrinkles. The key quality marker is a bright orange-yellow cross-section with a brownish-yellow to brownish-red outer zone. It should have a distinctly aromatic smell and a pungent, bitter taste. Select pieces that are large, plump, finely wrinkled on the outside, with a vivid orange-yellow interior. For both types, pieces should feel solid and heavy, break cleanly with a smooth, glossy, horn-like surface. Avoid pieces that are shrivelled, light, soft, or have dull, starchy cross-sections (indicating under-cooking during processing).

Primary Growing Regions

Wen Yu Jin (温郁金, from Curcuma wenyujin): Zhejiang province, especially the Wenzhou region, is the most renowned dao di (terroir) source and has the longest history of cultivation. Huang Si Yu Jin (黄丝郁金, from Curcuma longa): primarily Sichuan, also Fujian, Guangdong, and Jiangxi provinces. Gui Yu Jin (桂郁金, from Curcuma kwangsiensis): mainly Guangxi and Yunnan provinces. Lu Si Yu Jin (绿丝郁金, from Curcuma phaeocaulis): Sichuan (cultivated for over 900 years), Zhejiang, Fujian, and Guangxi.

Harvesting Season

Winter, after the stems and leaves have withered. The root tubers are dug up, cleaned of soil and fine rootlets, then steamed or boiled until the center is fully cooked, and dried.

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

3-10g

Maximum

Up to 15g in decoction for acute conditions such as severe jaundice or acute pain due to Qi-Blood stagnation, under practitioner supervision. When used as ground powder taken directly with water, the traditional dose is typically 1.5-6g.

Notes

For activating Blood and relieving pain (chest pain, flank pain, dysmenorrhoea): 6-10g in decoction, often stir-fried with vinegar (cu yu jin) to enhance Liver-entering and pain-relieving effects. For clearing Heart Heat and opening the orifices (high fever with delirium, phlegm misting the Heart): 3-6g as ground powder, often taken with fresh bamboo juice (zhu li) or combined with Shi Chang Pu and Ming Fan. For promoting bile flow and resolving jaundice: 6-10g in decoction. When used as powder taken directly with water or in pills, the dose is generally lower (1.5-6g) since the active compounds are more directly absorbed. Vinegar-processed Yu Jin (醋郁金) is preferred for Liver Qi stagnation and pain; wine-processed Yu Jin is used to enhance Blood circulation effects.

Processing Methods

Processing method

Yu Jin slices are mixed with rice vinegar (10kg vinegar per 100kg herb), allowed to absorb the vinegar, then stir-fried over low heat until dry.

How it changes properties

Vinegar processing shifts the taste toward slightly sour-acrid and the temperature becomes slightly less cold (微寒). Vinegar is traditionally understood to guide herbs into the Liver and Blood division. This enhances Yu Jin's liver-directing and Blood-moving properties, strengthening its ability to relieve Liver Qi stagnation pain and invigorate Blood circulation.

When to use this form

Choose vinegar-processed Yu Jin when the primary goal is to relieve pain from Liver Qi stagnation and Blood stasis, such as hypochondriac pain, premenstrual pain, and chest pain from Blood stasis. The vinegar form has stronger pain-relieving and Liver-directing action compared to raw Yu Jin.

Toxicity Classification

Non-toxic

Yu Jin is classified as non-toxic in the Chinese Pharmacopoeia. No significant acute or chronic toxicity has been reported at standard therapeutic dosages. However, its active compounds (curcumin, curcumol, germacrone) have demonstrated anticoagulant and antiplatelet effects at higher doses, so excessive consumption may increase bleeding tendency. Animal studies confirmed that Yu Jin preparations can terminate pregnancy, which underscores the importance of avoiding it during pregnancy. At standard decoction dosages (3-10g), no special toxicity concerns arise.

Contraindications

Avoid

Pregnancy. Yu Jin has strong Blood-moving and stasis-dispersing properties. Animal studies have shown it can terminate pregnancy at all stages by antagonizing progesterone and stimulating uterine contraction, leading to embryo destruction or miscarriage.

Avoid

Concurrent use with Ding Xiang (Clove). Yu Jin and Ding Xiang are listed in the classical Nineteen Mutual Fears (十九畏) as an incompatible pair. Their opposing thermal natures (cold vs. warm) and pharmacological properties may produce adverse effects or cancel each other's therapeutic actions.

Caution

Qi and Blood deficiency without stasis. In people who are simply weak and depleted rather than having actual stagnation or stasis, Yu Jin's dispersing and draining nature can further exhaust the body's resources. The Ben Cao Jing Du warns that using Yu Jin when closure of menses is due to deficiency rather than excess 'is its enemy.'

Caution

True Yin deficiency with reckless bleeding from deficiency Fire. When bleeding is caused by severe Yin depletion and deficiency Fire driving Blood upward (rather than by Qi stagnation or Liver constraint), Yu Jin will be ineffective and potentially harmful, as noted in the Ben Cao Jing Shu.

Caution

Stomach deficiency or Blood deficiency causing epigastric fullness and pain. When distension and pain arise from deficiency of the Stomach or Blood rather than from stagnation, Yu Jin's bitter-cold draining nature can worsen the condition.

Caution

Postpartum use without clear Heat or Blood stasis. In the postpartum period, Yu Jin should only be used when there is definite Heat with congealed stasis. Using it casually after childbirth in women who are simply depleted risks further weakening already vulnerable Qi and Blood.

Caution

Concurrent use with anticoagulant or antiplatelet medications. Curcumin and related compounds in Yu Jin have demonstrated antiplatelet and anticoagulant activity. Combining Yu Jin with blood-thinning drugs like warfarin may increase bleeding risk.

Classical Incompatibilities

Yu Jin is listed in the Nineteen Mutual Fears (十九畏): Ding Xiang (丁香, Clove) fears Yu Jin (丁香畏郁金). These two herbs should not be used together in the same prescription. Although some historical formulas (such as Shi Xiang Fan Hun Dan) have combined them, this remains controversial and should be avoided without expert guidance and clear clinical justification.

Special Populations

Pregnancy

Contraindicated during pregnancy. Yu Jin has strong Blood-moving and stasis-breaking properties. Animal studies have demonstrated that Yu Jin preparations can terminate pregnancy at early, middle, and late stages in mice, likely through anti-progesterone activity and uterine stimulation. The classical text Ben Cao Jing Du explicitly warns that during pregnancy, when vigorous dispersing is most dangerous, Yu Jin 'must not even touch the lips.' This is not merely a theoretical caution but a well-documented reproductive risk.

Breastfeeding

No specific classical prohibitions exist for breastfeeding. However, given its bitter-cold nature and Blood-moving properties, caution is appropriate during the postpartum and breastfeeding period, especially in women who are already weak or Blood-deficient. Active compounds like curcumin may pass into breast milk, though specific data on transfer and infant effects are lacking. Best used under practitioner guidance if needed during breastfeeding, and not as a routine supplement.

Pediatric Use

No specific classical prohibitions for children when clinically indicated. Dosages should be reduced proportionally based on age and body weight, typically one-third to one-half of the adult dose for school-age children. Yu Jin's bitter-cold nature may be difficult for young children's digestion, so it is generally combined with Spleen-supporting herbs when used in pediatric formulas. Not commonly used as a standalone herb in small children; practitioner supervision is essential.

Drug Interactions

Anticoagulants and antiplatelet agents (warfarin, heparin, clopidogrel, aspirin): Curcumin and related curcuminoids in Yu Jin have demonstrated anticoagulant and antiplatelet effects in both laboratory and animal studies. Case reports from New Zealand's Centre for Adverse Reaction Monitoring have documented patients on stable warfarin whose INR rose dramatically after starting turmeric-containing products. Concurrent use may increase bleeding risk and requires close monitoring of coagulation parameters (INR/PT).

NSAIDs (ibuprofen, naproxen, etc.): Curcumin has NSAID-like anti-inflammatory effects. Combining Yu Jin with pharmaceutical NSAIDs may increase gastrointestinal irritation and bleeding risk through additive mechanisms.

Hypoglycaemic agents (metformin, sulfonylureas, insulin): Some evidence suggests curcumin may reduce blood glucose levels. Patients taking diabetes medications should monitor blood sugar more closely if also using Yu Jin, to watch for potential hypoglycaemia.

CYP450 substrates: Laboratory evidence suggests curcumin may inhibit certain CYP450 enzymes, particularly CYP3A4, which could alter the metabolism of drugs processed through these pathways. Clinical significance in humans remains uncertain, but caution is warranted with narrow therapeutic index drugs.

Dietary Advice

Avoid overly greasy, rich, or heavy foods that may impede Qi circulation and counteract Yu Jin's ability to resolve stagnation. Since Yu Jin is bitter and cold, people with weak digestion should ensure adequate warm, cooked foods during treatment. Avoid excessive cold or raw foods which could impair Spleen function and hinder the herb's Qi-moving action. Alcohol in small amounts may actually support the Blood-moving effect, but excessive drinking should be avoided as it generates Dampness-Heat.

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.