Herb Flower (花 huā)

He Huan Hua

Albizia flower · 合欢花

Albizia julibrissin Durazz. · Flos Albiziae

Also known as: Ye He Hua (夜合花)

He Huan Hua (Albizia flower) plant

Images shown are for educational purposes only

Often called the 'happiness herb,' Albizia flower is a gentle, calming remedy traditionally used to ease emotional distress, lift low mood, and promote restful sleep. It is especially helpful when stress, worry, or grief lead to insomnia, a heavy feeling in the chest, or poor appetite. Its mild, neutral nature makes it safe for everyday use as a tea or in herbal formulas.

Category Spirit-calming herbs (安神药) Herbs that nourish the Heart and calm the Spirit (养心安神药)
Therapeutic focus Emotional Wellbeing Sleep Support Stress and Anxiety Digestive Health

TCM Properties

Temperature

Neutral

Taste

Sweet (甘 gān)

Channels entered

Heart, Liver

Parts used

Flower (花 huā)

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Educational content • Consult qualified TCM practitioners for diagnosis and treatment

What This Herb Does

Every herb has a specific set of actions — here's what He Huan Hua does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, He Huan Hua is primarily used to support these areas of health:

Emotional Wellbeing Sleep Support Stress and Anxiety Digestive Health

TCM Actions

In TCM terminology, these are the specific therapeutic actions that He Huan Hua performs to restore balance in the body:

Relieves Constraint and Calms the Spirit Regulates Qi and opens the Stomach Dispels Wind and Brightens the Eyes Invigorates the collaterals and alleviates pain

How these actions work

'Relieves constraint and calms the spirit' is the primary action of He Huan Hua and the reason it is sometimes called the 'happiness herb.' When emotional strain (grief, worry, frustration) causes the Liver Qi to stagnate and disturbs the Heart spirit (Shen), a person may feel depressed, restless, or unable to sleep. He Huan Hua gently unblocks that emotional constraint and settles the spirit. It is sweet and neutral, so it works in a mild, non-aggressive way, making it well suited for long-term emotional imbalance rather than acute crisis. It is most commonly combined with other spirit-calming herbs such as Suan Zao Ren (sour jujube seed) or Ye Jiao Teng (polygonum vine) to strengthen this effect.

'Regulates Qi and opens the Stomach' reflects the herb's ability to address the digestive consequences of emotional stagnation. In TCM, the Liver governs the free flow of Qi, and when Liver Qi stagnates from unexpressed emotions, it often invades the Spleen and Stomach, causing poor appetite, a feeling of fullness or bloating in the upper abdomen, and nausea. He Huan Hua gently soothes the Liver and restores harmonious Qi flow to the digestive system.

'Disperses Wind and brightens the eyes' refers to the herb's traditional use for eye redness, pain, or blurred vision caused by Wind-Heat or Liver fire rising to the eyes. He Huan Hua's light, gently dispersing quality allows it to address these upper-body symptoms when combined with herbs like Ju Hua (chrysanthemum) or Jue Ming Zi (cassia seed).

'Invigorates the collaterals and alleviates pain' describes a secondary action: He Huan Hua can promote Qi and Blood circulation in the channels, which helps relieve pain from traumatic injury or chronic aching in the lower back and legs. The classical formula Ye He Hua Wan from the Sheng Hui Fang uses it for exactly this purpose, combining it with Niu Xi and Hong Hua.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony. He Huan Hua is used to help correct these specific patterns.

Why He Huan Hua addresses this pattern

He Huan Hua directly addresses Liver Qi Stagnation by gently unblocking the constrained flow of Qi. Its sweet taste harmonizes and relaxes, while its affinity for the Liver channel allows it to soothe the Liver and restore its function of ensuring smooth Qi circulation. When Liver Qi is bound up by unexpressed emotions like anger, frustration, or grief, it creates chest tightness, irritability, and a sensation of a lump in the throat. He Huan Hua's light, mildly dispersing quality moves this stuck Qi without being harsh or drying. It is particularly suited to Liver Qi Stagnation that has begun to affect the emotions and sleep, as it simultaneously calms the spirit housed in the Heart.

A practitioner would look for one or more of these signs

Depression

Low mood, melancholy, loss of interest

Chest Stiffness

Feeling of oppression or fullness in the chest

Irritability

Emotional tension and irritability from constrained Qi

Frequent Bleeding

Frequent sighing as the body tries to move stuck Qi

Commonly Used For

These are conditions where He Huan Hua is frequently used — but only when they arise from the specific patterns it addresses, not in all cases

Arises from: Liver Qi Stagnation Heart Shen Disturbance

TCM Interpretation

In TCM, sleep depends on the Heart spirit (Shen) being calm enough to return inward at night. When emotions like worry, anger, or grief cause the Liver Qi to stagnate, this creates internal turbulence that agitates the Heart spirit and prevents peaceful sleep. The person may lie awake with a racing mind, feel tightness in the chest, or wake frequently during the night. In other cases, the Heart and Spleen become depleted by prolonged overthinking, leaving the spirit without adequate nourishment to settle. Both pathways lead to insomnia, and both involve the interplay between the Liver's emotional regulation and the Heart's role as the residence of the spirit.

Why He Huan Hua Helps

He Huan Hua addresses insomnia from two directions. First, its primary action of 'relieving constraint and calming the spirit' directly unblocks the stagnant Liver Qi that agitates the Heart, allowing the spirit to settle naturally at night. Second, its sweet taste and Heart channel affinity gently nourish and stabilize the spirit. Because it is neutral in temperature rather than cold, it does not create new problems for people whose insomnia has a mixed or deficiency background. It is often paired with Suan Zao Ren or Ye Jiao Teng to enhance the calming effect. Animal studies have shown that Albizia flower decoctions significantly enhance sedative effects and reduce spontaneous activity, consistent with its traditional spirit-calming reputation.

Also commonly used for

Poor Memory

Forgetfulness associated with emotional strain or poor sleep

Poor Appetite

Reduced appetite from Liver Qi invading the Stomach

Blurry Vision

Eye discomfort or blurred vision from Wind-Heat or Liver fire

Neurasthenia

Nervous exhaustion with irritability and sleep disturbance

Menopausal Symptoms

Mood swings, insomnia, and irritability during menopause

Herb Properties

Every herb has an inherent temperature, taste, and affinity for specific channels — these properties determine how it interacts with the body

Temperature

Neutral

Taste

Sweet (甘 gān)

Channels Entered

Heart Liver

Parts Used

Flower (花 huā)

Dosage & Preparation

These are general dosage guidelines for He Huan Hua — always follow your practitioner's recommendation, as dosages vary based on the formula and your individual condition

Standard dosage

5-10g

Maximum dosage

Up to 15g in decoction for acute emotional distress or severe insomnia, under practitioner guidance. As a tea infusion, 4-6g is typical for daily wellness use.

Dosage notes

Use 5-10g in standard decoctions for insomnia, emotional constraint, and mild depression. For concurrent Stomach and digestive complaints (bloating, poor appetite due to Liver Qi invading the Stomach), combine at standard dose with Qi-regulating herbs. When used as a simple tea for daily mood support, 4-6g steeped in hot water is sufficient. He Huan Hua contains volatile aromatic compounds that are easily lost with prolonged boiling, so it should not be over-decocted. In porridge preparations, add the flowers near the end of cooking.

Preparation

He Huan Hua contains volatile aromatic compounds that contribute to its therapeutic effect. It should be added to the decoction in the last 5-10 minutes of cooking (hou xia, 后下) to prevent loss of its fragrant active components. Do not decoct for a prolonged period.

Common Herb Pairs

These ingredients are traditionally combined with He Huan Hua for enhanced therapeutic effect

Ye Jiao Teng
Ye Jiao Teng 1:1.5 (He Huan Hua 10g : Ye Jiao Teng 15g)

He Huan Hua relieves emotional constraint and calms the spirit from the Liver side, while Ye Jiao Teng nourishes Heart Blood and quiets the spirit from the Heart side. Together they address both the root (Qi stagnation) and the manifestation (spirit disturbance) of emotionally-driven insomnia.

When to use: Insomnia and restless sleep caused by emotional strain, worry, or grief, especially when accompanied by vivid dreams, poor memory, and a general sense of sadness.

Bai Zi Ren
Bai Zi Ren 1:1 (He Huan Hua 10g : Bai Zi Ren 10g)

He Huan Hua resolves Qi stagnation and lifts the mood, while Bai Zi Ren nourishes Heart Blood and calms the spirit with its oily, moistening quality. The combination treats insomnia and anxiety from both deficiency and stagnation simultaneously.

When to use: Insomnia with anxiety, palpitations, and emotional depression, particularly when there are signs of both Liver Qi constraint and Heart Blood deficiency such as dry skin and constipation.

Yu Jin
Yu Jin 1:1 (He Huan Hua 10g : Yu Jin 10g)

Both herbs move stagnant Qi and relieve emotional constraint, but Yu Jin also invigorates Blood and clears Heart Heat. The pair powerfully opens up emotional blockages, particularly when Qi stagnation has begun to generate internal Heat or Blood stasis.

When to use: Severe depression or emotional agitation with chest oppression, irritability, restlessness, and possibly a sensation of heat or bitter taste in the mouth.

Suan Zao Ren
Suan Zao Ren 1:1.5 (He Huan Hua 10g : Suan Zao Ren 15g)

He Huan Hua disperses Liver Qi constraint while Suan Zao Ren nourishes Liver Blood and calms the spirit. Together they create a balanced approach: one moves what is stuck and the other replenishes what is depleted, providing comprehensive treatment for Liver-related insomnia.

When to use: Insomnia and dream-disturbed sleep from Liver Blood deficiency combined with emotional constraint, typically presenting with irritability, fatigue, dry eyes, and difficulty falling asleep.

Comparable Ingredients

These ingredients have overlapping uses — here's how to tell them apart

He Huan Pi
He Huan Hua vs He Huan Pi

Both come from the same tree (Albizia julibrissin) and share the actions of relieving constraint and calming the spirit. However, He Huan Pi (the bark) has a stronger ability to invigorate Blood, reduce swelling, and treat abscesses and traumatic pain. He Huan Hua (the flower) is better for soothing the Liver, regulating Qi, promoting sleep, and brightening the eyes. Clinically, the bark is preferred when there is Blood stasis or physical swelling, while the flower is the better choice for purely emotional and sleep-related complaints.

Mei Gui Hua
He Huan Hua vs Mei Gui Hua

Both regulate Qi and relieve emotional stagnation affecting the Liver. Mei Gui Hua (rose bud) is sweet, slightly bitter, and warm, entering the Liver and Spleen to move Qi at the Blood level. It is better suited for Liver-Stomach disharmony with epigastric pain and is mildly warming. He Huan Hua is sweet, neutral, and works more at the Qi level of the Heart and Spleen, making it the stronger choice for calming the spirit and treating insomnia or depression.

Yuan Zhi
He Huan Hua vs Yuan Zhi

Both calm the spirit and are used for insomnia and emotional disturbance. Yuan Zhi (polygala root) is acrid, bitter, and slightly warm; it opens the Heart orifice, expels Phlegm, and facilitates communication between the Heart and Kidneys. It is the better choice when Phlegm clouds the mind or when there is forgetfulness with muddled thinking. He Huan Hua is gentler and more specific for emotional depression and Liver Qi stagnation causing spirit disturbance, without the Phlegm-resolving or orifice-opening action.

Identity & Adulterants

Related species and common adulterations to be aware of when sourcing He Huan Hua

The most clinically important substitution issue is the confusion between He Huan Hua (from Albizia julibrissin, Fabaceae) and the Guangdong regional substitute known as 'Guang Dong He Huan Hua' or 'Ye He Hua' (from Magnolia coco, Magnoliaceae). These are entirely different plants from different families with different active constituents and clinical applications. The Magnolia product is warm in nature and pungent in taste, quite distinct from the sweet, neutral Albizia flower. In the Chaoshan region of Guangdong, flowers of Senna surattensis (yellow cassia) have also historically been used as a substitute, though this practice has largely ceased. Authentic He Huan Hua can be identified by its characteristic cotton-like, fluffy appearance with long silky stamens, mild fragrance, and bland taste.

Educational content — always consult a qualified healthcare provider or TCM practitioner before using any herb.

Toxicity Classification

Classical Chinese pharmacopoeia toxicity rating for He Huan Hua

Non-toxic

He Huan Hua is classified as non-toxic in both the Chinese Pharmacopoeia and classical sources. The Si Chuan Zhong Yao Zhi specifically states it is "non-toxic" (无毒). No toxic components have been identified in the flowers at standard dosages. However, excessive consumption may cause mild gastrointestinal discomfort or, in some individuals, mild drowsiness due to the herb's sedative properties. The seed pods of the Albizia tree are considered toxic and should not be confused with the flowers.

Contraindications

Situations where He Huan Hua should not be used or requires extra caution

Caution

Pregnancy. He Huan Hua has mild blood-invigorating properties that may theoretically stimulate uterine activity, posing a risk of miscarriage or premature labor.

Caution

Concurrent use of sedative or hypnotic medications (benzodiazepines, barbiturates, zolpidem, etc.). He Huan Hua has demonstrated synergistic effects with barbiturate-class sedatives in animal studies, potentially causing excessive drowsiness.

Caution

Insomnia or emotional disturbance caused by Phlegm-Heat or other excess pathological factors. As a mild, sweet, neutral herb, He Huan Hua is best suited for emotional constraint and deficiency-related insomnia. It should not be used alone for Phlegm-Heat patterns but must be appropriately combined with other herbs.

Caution

Qi deficiency or general bodily weakness (ti xu). In individuals with significant constitutional weakness, the dispersing quality of this herb may further deplete Qi. Use with caution and combine with tonifying herbs.

Caution

Scheduled surgery within 2 weeks. Due to its central nervous system depressant activity, it may interact with anesthetic agents. Discontinue at least 2 weeks before planned surgical procedures.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Use with caution during pregnancy. He Huan Hua has mild blood-invigorating (huo xue) properties that could theoretically promote uterine circulation and increase the risk of miscarriage, particularly in early pregnancy. While it is not as strongly blood-moving as herbs like Hong Hua (safflower) or Tao Ren (peach kernel), the general principle of caution applies. One popular Chinese health source suggests he huan hua congee can benefit pregnant women, but this is not a consensus view. Given insufficient reliable safety data, pregnant women should avoid use or consult a qualified TCM practitioner before taking this herb.

Breastfeeding

There is insufficient reliable information regarding the safety of He Huan Hua during breastfeeding. While the herb is mild and generally considered safe at standard doses, it is unknown whether its active constituents (flavonoids, volatile oils) transfer into breast milk or what effect they may have on a nursing infant. Given its sedative properties, there is a theoretical concern about drowsiness in the infant. Breastfeeding mothers should consult a qualified practitioner before use.

Children

He Huan Hua is mild and neutral in nature, making it relatively suitable for older children with emotional disturbance or difficulty sleeping. Dosage should be reduced proportionally based on age and body weight, typically one-third to one-half of the adult dose. It is not commonly used in very young children (under 3 years). For children with sleep difficulties, the underlying cause should always be carefully assessed by a practitioner rather than relying on herbs alone.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with He Huan Hua

Sedative and hypnotic medications: Animal studies have demonstrated that He Huan Hua decoction significantly synergises with barbiturate-class sedatives (pentobarbital, phenobarbital), extending their duration of action. By extension, caution is warranted with any CNS-depressant medication, including benzodiazepines (lorazepam, clonazepam), non-benzodiazepine sleep aids (zolpidem), and other sedative-hypnotics. Concurrent use may lead to excessive drowsiness.

Anaesthetic agents: Due to its central nervous system depressant activity, He Huan Hua may potentiate the effects of anaesthesia. It is advisable to discontinue use at least two weeks before scheduled surgery.

Antidepressant medications: Preclinical research suggests that Albizia julibrissin extracts may inhibit serotonin transporter (SERT) activity and modulate monoaminergic signalling. While these findings are primarily from bark extracts, theoretical caution should be exercised when combining He Huan Hua with SSRI or SNRI antidepressants to avoid potential serotonergic interactions. Clinical evidence of this interaction is currently lacking.

Dietary Advice

Foods and dietary considerations when taking He Huan Hua

No specific strong dietary restrictions apply. When using He Huan Hua for insomnia and emotional distress, it is generally helpful to avoid stimulating foods and drinks such as strong tea, coffee, alcohol, and heavily spiced or greasy foods in the evening, as these can counteract the calming effect of the herb. He Huan Hua is commonly taken as a simple tea or in congee (porridge) as a food therapy for mild cases.

Botanical Description

Physical characteristics and morphology of the He Huan Hua source plant

Albizia julibrissin Durazz. is a deciduous tree of the Leguminosae (Fabaceae) family, typically growing 4 to 10 metres tall with a broad, spreading, umbrella-shaped canopy. The bark is greyish-brown with shallow longitudinal fissures. Its leaves are large and bipinnately compound, with 10 to 25 pairs of leaflets per pinna, each leaflet being small, oblong, and slightly curved. A distinctive feature is that the leaflets fold together at night or on touch, which gives rise to the Chinese name "he huan" (合欢, "joined happiness") and the alternate name "night-closing tree."

The flowers bloom in mid-summer (June to July) in dense, rounded head-like clusters at the tips of branches. Each flower head resembles a fluffy pink puffball, composed of numerous individual flowers with long, slender, silky stamens that are white at the base and pink to reddish at the tips, creating a striking gradient effect. The flowers are mildly fragrant. Flat, strap-shaped seed pods develop after flowering and mature from August to October. The tree thrives in warm, sunny environments and grows widely from the Yellow River basin southward across China, as well as in Korea, Japan, Iran, and other parts of temperate Asia.

Sourcing & Harvesting

Where He Huan Hua is sourced, when it's harvested or collected, and how to assess quality

Harvesting season

Summer (June to July). Opened flowers are harvested on sunny days when in bloom; unopened flower buds (called 'he huan mi') are collected when buds have formed but before opening. Both are promptly sun-dried.

Primary growing regions

He Huan Hua is produced across a wide range of provinces in China. Major producing regions include Zhejiang, Anhui, Jiangsu, and Sichuan. The Albizia julibrissin tree is widely distributed from Northeast China to South China and Southwest China, growing on hillsides, roadsides, and in cultivated gardens. He Huan Hua does not have a single strongly defined "daodi" (terroir) region in the way that some premium herbs do. It is a common ornamental and roadside tree throughout temperate China, and commercial supplies come from multiple provinces.

Quality indicators

Good quality He Huan Hua (dried open flowers) should form cotton-like, fluffy clustered masses. Individual florets are slender and curved, about 0.7 to 1 cm long, with a pale yellow to yellowish-brown colour. The stamens (flower filaments) should be numerous, fine, and long, with a yellowish-brown colour. The herb body should be light and easily breakable, with a mild, pleasant fragrance and a bland taste. Avoid material that is dark brown, excessively broken, damp, or has lost its fragrance. For He Huan Mi (dried buds), good quality is small, club-shaped, green to yellowish-green, evenly sized, and covered with fine hairs.

Classical Texts

Key passages from the classical Chinese medical texts that describe He Huan Hua and its therapeutic uses

Shen Nong Ben Cao Jing (《神农本草经》)

Original: 合欢，味甘，平，无毒。主安五脏，和心志，令人欢乐无忧。久服轻身，明目，得所欲。

Translation: "He Huan [Albizia]: Sweet in flavour, neutral in nature, non-toxic. It calms the five Zang organs, harmonises the mind and emotions, and makes a person happy and free from worry. Long-term use lightens the body, brightens the eyes, and fulfils one's wishes."

Note: The Shen Nong Ben Cao Jing lists he huan as a middle-grade herb and does not distinguish between bark and flower. The name "juan fen" (蠲忿, meaning "dispels anger") is given as its alternate name.

Ben Cao Yan Yi (《本草衍义》) by Kou Zongshi, Song Dynasty

Original: 合欢花，其色如今之醮晕线，上半白，下半肉红。散垂如丝，为花之异。其绿叶至夜则合，又谓之夜合花。

Translation: "The He Huan flower has a colour like dyed gradient thread, white on the upper half and flesh-pink on the lower half. Its stamens droop and scatter like threads, which is most unusual among flowers. Its green leaflets close together at night, hence it is also called 'night-closing flower.'"

Si Chuan Zhong Yao Zhi (《四川中药志》)

Original: 能合心志，开胃理气，消风明目，解郁。治心虚失眠。

Translation: "It can harmonise the mind and emotions, open the Stomach, regulate Qi, dispel Wind, brighten the eyes, and relieve constraint. It treats insomnia due to Heart deficiency."

Historical Context

The history and evolution of He Huan Hua's use in Chinese medicine over the centuries

The Albizia tree has been used medicinally in China for over two thousand years. It was first recorded in the Shen Nong Ben Cao Jing (circa 1st-2nd century CE), where it was classified as a middle-grade herb under the name "he huan" with the alternate name "juan fen" (蠲忿), literally meaning "dispels anger." The original entry does not distinguish between the bark and the flower, treating them as one medicine. The earliest description specifically naming the flower appears in Kou Zongshi's Ben Cao Yan Yi during the Song Dynasty, where he vividly describes the distinctive pink-and-white gradient colouring and thread-like stamens.

Culturally, he huan has carried deep symbolic meaning since antiquity. The Jin Dynasty scholar Cui Bao wrote in his Gu Jin Zhu (《古今注》): "To dispel a person's anger, give them qing tang [green hall tree]; qing tang is another name for he huan." The Three Kingdoms-era philosopher Ji Kang wrote in his famous Yang Sheng Lun (《养生论》): "He huan dispels anger, xuan cao [daylily] forgets sorrow; this is known to both the wise and foolish." This pairing of Albizia and daylily as remedies for anger and sorrow respectively became a lasting cultural trope in Chinese poetry and medicine. The name "he huan" itself (合欢, "joined happiness" or "collective joy") reflects both the plant's night-closing leaves and its emotional healing role. In folk tradition, the tree has long been associated with marital harmony and reconciliation.

In modern Guangdong and Hong Kong, there has been historical confusion between the pharmacopoeia-standard He Huan Hua (from Albizia julibrissin) and a local substitute called "Guang Dong He Huan Hua" (广东合欢花, from Magnolia coco, a completely different plant in the Magnoliaceae family). This was formally clarified by the 2019 Guangdong Provincial Chinese Herbal Medicine Standards, which gave the Magnolia product a separate standard entry. Practitioners should be aware of this regional distinction.

Modern Research

4 published studies investigating the pharmacological effects or clinical outcomes of He Huan Hua

1

Sedative activity of two flavonol glycosides isolated from the flowers of Albizzia julibrissin Durazz. (Preclinical study, 2000)

Kang TH, Jeong SJ, Kim NY, Higuchi R, Kim YC. Journal of Ethnopharmacology, 2000, 71(1-2): 321-323.

This study isolated two flavonol glycosides, quercitrin and isoquercitrin, from Albizia julibrissin flowers. Both compounds significantly increased pentobarbital-induced sleeping time in mice in a dose-dependent manner, providing pharmacological evidence for the traditional sedative use of the flower.

PubMed
2

A comparison review of Hehuan flowers and Hehuan bark on the traditional applications, phytochemistry and pharmacological effects (Review, 2023)

Lu P, Zhang C, Zheng J, Li C, Zhang Q, Huang B. Journal of Ethnopharmacology, 2023, 303: 115942.

This comprehensive review compared the traditional uses, chemical constituents, and pharmacological effects of Albizia julibrissin flower and bark. It found that over 140 compounds have been isolated from the plant, with flavonoids (especially quercitrin) being the principal bioactive components in the flowers. The review concluded that both flower and bark are safe and effective herbal medicines with activities including mood improvement, immune regulation, and anticancer potential.

PubMed
3

Molecular basis and mechanism of action of Albizia julibrissin in depression treatment and clinical application of its formulae (Review, 2023)

Li Y, Huang L, Cheng S, Zhang Y. Chinese Herbal Medicines, 2023, 15(2): 201-213.

This review examined the antidepressant mechanisms of A. julibrissin, reporting that its extracts act on monoaminergic signalling (including serotonin transporter inhibition), the HPA axis, BDNF signalling, and neuroinflammatory pathways. Total flavonoids from the flowers specifically increased BDNF and TrkB expression in hippocampal regions of stressed rat models.

PubMed
4

Albizia julibrissin Ameliorates Memory Loss Induced by Insomnia in Drosophila (Preclinical study, 2019)

Not fully specified in retrieved data. Evidence-Based Complementary and Alternative Medicine, 2019.

Using a Drosophila (fruit fly) model, this study demonstrated that A. julibrissin water extract could ameliorate 3-hour memory loss caused by short-term sleep deprivation. The findings suggest the herb may protect cognitive function during periods of poor sleep, supporting its traditional use for insomnia-related forgetfulness.

PubMed

Research on individual TCM herbs is growing but still limited by Western clinical trial standards. These studies provide emerging evidence and should be considered alongside practitioner expertise.