Can't Sleep? Try Jujube (Hongjo) Herbal Tea — Korea's Ancient Remedy for Stress & Insomnia

Hello, and welcome.

It's past 11 PM. You're lying in bed, exhausted from the day, but your mind is still running at full speed — replaying meetings, drafting tomorrow's to-do list, calculating how many hours of sleep you might actually get if you fall asleep right now. Sound familiar?

If you've been living in Korea, or if K-wellness has been showing up on your feed lately, you may have noticed something: Koreans have a quiet ritual for nights like these. On the stovetop, a small pot simmering with dark red fruits. The scent — warm, sweet, faintly earthy — filling the kitchen. A cup of jujube tea (known in Korean as 대추차, daechu-cha, made from 홍조, hongjo — dried red jujube) placed on the bedside table before sleep.

This isn't just a cozy aesthetic. It's a remedy with over 400 years of recorded clinical use and a growing body of modern research to back it up.

In this guide, you'll find out why jujube works for stress and sleep — from the specific compounds involved to the pathways they activate in the brain — and you'll walk away with 3 blending recipes you can start using tonight.

This guide is for you if you're living with chronic stress, skeptical of sleeping pills, and curious about whether something as simple as a cup of Korean herbal tea could actually make a difference.

Korea's ancient jujube (hongjo) herbal tea — a natural remedy for stress and insomnia backed by centuries of use

📋 Quick Summary | Jujube (Hongjo) Herbal Tea

Category	Details
Herb	Jujube (Ziziphus jujuba Mill.), known as Hongjo (홍조) in Korean
Key Compounds	Jujuboside A & B (saponins), polysaccharides, cAMP, Vitamin C
Primary Effects	Promotes sleep onset, reduces cortisol, calms the nervous system
Recommended Blends	Jujube + Ziziphus seed / Jujube + Chamomile / Jujube + Lavender
Best Time to Drink	1–2 hours before bedtime

Detailed blending recipes and brewing instructions are in the sections below.

What Is Jujube (Hongjo)? — Korea's Most Trusted Sleep Herb

Jujube (Ziziphus jujuba Mill.) is the small, wrinkled, dark red fruit of a tree in the Rhamnaceae family. In Korean, the dried fruit is called 홍조 (Hongjo), meaning "red date," and it has been a staple of Korean traditional medicine for well over a thousand years.

The Donguibogam (동의보감), the landmark Korean medical encyclopedia compiled by royal physician Heo Jun in 1613, describes jujube as an herb that "calms the heart-mind (sim-gi, 心氣), nourishes the five organs, and brings peace to the spirit." In the Bencao Gangmu (本草綱目), the 16th-century Chinese materia medica by Li Shizhen, jujube's capacity to "nourish the blood and calm the nerves (yanghyeol-anshin, 養血安神)" is similarly emphasized.

Dried jujube (hongjo) — Korea's traditional calming herb, recorded in the Donguibogam since 1613

What makes jujube remarkable is the combination of recorded historical use across multiple East Asian traditions and a growing number of peer-reviewed studies that validate those claims at the molecular level. It isn't often that a folk remedy and modern pharmacology arrive at the same conclusion — but jujube is one of those cases.

The Science: Why Jujube Works for Sleep and Stress

Jujuboside A & B — Activating the Brain's Own Sleep Switch

The most studied compounds in jujube are Jujuboside A and B, triterpenoid saponins found primarily in the seeds and fruit. Research by You et al. (2010, Journal of Ethnopharmacology) demonstrated that Jujuboside A modulates the expression of GABA-A receptor subunits in hippocampal neurons, effectively shifting the nervous system toward inhibition — the biological precondition for sleep.

Jujuboside A in jujube activates GABA-A receptors in the hippocampus — the brain's natural sleep switch

overdrive. Jujube saponins, by contrast, encourage the brain to follow its natural winding-down process. This is why dependency and tolerance — the two major concerns with pharmaceutical sleep aids — are not associated with jujube consumption.

A more recent study (Song et al., 2025, Journal of Ethnopharmacology) confirmed that Jujuboside A ameliorates insomnia by restoring the balance between GABA and glutamate in the brain — in other words, reducing the neurochemical "noise" that keeps anxious minds awake.

Polysaccharides — Quieting the Stress Response

Chronic stress keeps cortisol levels elevated well into the night, preventing the nervous system from transitioning into rest mode. Research published in Phytomedicine Plus (Jiang et al., 2025) found that jujube polysaccharides can mitigate the neuroinflammation caused by chronic restraint stress and help rebalance the gut-brain axis — the bidirectional communication system increasingly recognized as central to both mood regulation and sleep quality.

In practical terms: if your insomnia is driven by stress rather than a primary sleep disorder, jujube targets the root cause rather than masking the symptom.

Vitamin C & cAMP — The Supporting Cast

Jujube is extraordinarily rich in Vitamin C — up to 700mg per 100g of dried fruit, according to the Korean Rural Development Administration's National Food Composition Database (2023). Vitamin C supports adrenal recovery, helping the body rebuild its stress tolerance after prolonged periods of high output.

cAMP (cyclic adenosine monophosphate) found in jujube plays a role in modulating neurotransmitter activity, contributing to the gentle relaxation of the sympathetic nervous system — the "fight-or-flight" circuitry that tends to stay switched on in chronically stressed individuals.

3 Jujube Blending Recipes — Choose by Symptom

Single-herb jujube tea is effective on its own, but pairing it with complementary herbs creates a more targeted response. Below are the three blends I've tested most consistently over the past two years, each designed for a specific stress-and-sleep profile.

Three jujube blending recipes — jujube + ziziphus seed, jujube + chamomile, jujube + lavender

Blend 1 | Jujube + Ziziphus Seed (산조인, Sanjoin) — Deep Sleep Formula

This is the classic Korean insomnia pairing, documented in traditional prescriptions for over 700 years. Ziziphus seed (the seed of Ziziphus jujuba var. spinosa, distinct from the fruit) contains spinosin, a flavone that acts on serotonin (5-HT1A) receptors, complementing jujube's GABA-targeting saponins through an entirely different pathway. The combined effect is deeper, more sustained sleep.

Ingredient	Amount
Dried jujube (seeds removed)	10–12 pieces
Roasted ziziphus seed (sanjoin)	15g
Water	1,200ml
Raw honey	To taste (add after cooling)

Best for: Difficulty falling asleep; waking repeatedly during the night; light, unrefreshing sleep.

I've been using this blend on high-stress workdays for over two years. The difference compared to plain jujube tea is noticeable — specifically in the depth of sleep and the clarity I feel in the morning. Roasting the ziziphus seed before brewing amplifies both the nutty aroma and the extraction of active compounds.

Blend 2 | Jujube + Chamomile — Anxiety & Tension Release

When the issue is more anxiety than insomnia per se — the racing thoughts, the tight chest, the inability to mentally disconnect — this blend tends to be more effective. Chamomile's apigenin binds to benzodiazepine receptors in the brain, reducing anxiety through a mechanism that partially overlaps with prescription anxiolytics, but without the associated risks. Jujube's natural sweetness softens chamomile's slightly bitter edge.

Ingredient	Amount
Dried jujube (seeds removed)	8 pieces
Dried chamomile flowers	2g
Water	1,000ml
Raw honey	To taste (add after cooling)

Brewing note: Simmer jujube for 20 minutes on low heat, then remove from heat and steep chamomile for 4 minutes with the lid on. Over-steeping chamomile makes it bitter.

Best for: Stress-driven anxiety, tight shoulders or jaw, difficulty mentally switching off after work.

Blend 3 | Jujube + Lavender — Nervous System Reset

On days when the body feels physically wired — elevated heart rate, muscle tension, shallow breathing — lavender adds a layer of autonomic nervous system regulation. Linalool, lavender's primary active compound, has been shown to reduce sympathetic nervous system activity and lower heart rate, working in tandem with jujube's GABA modulation.

Ingredient	Amount
Dried jujube (seeds removed)	8 pieces
Culinary-grade lavender flowers	0.3–0.5g
Water	1,000ml
Raw honey	To taste (add after cooling)

 

⚠️ Important: Use only culinary-grade (food-safe) lavender. Ornamental or fragrance-grade lavender can cause headaches. Keep the amount at or below 0.5g — lavender becomes bitter and overpowering in excess.

Best for: Physical tension, elevated heart rate, shallow breathing, hypervigilance.

How to Brew Jujube Herbal Tea — Step by Step

How to brew jujube herbal tea — the key is low heat, seed removal, and adding honey after cooling

Step 1 | Prep the jujube (5 min) Rinse dried jujube under running water for at least 30 seconds. Remove the seeds using a small knife — cutting along the seed lengthwise works well. Removing the seeds eliminates bitterness and noticeably brightens the sweetness of the tea.

Jujube Tea Step 1 — Rinse under running water and remove seeds

Step 2 | Start with cold water Place the prepared jujube in a pot and add cold water. Starting cold (rather than adding jujube to boiling water) allows the saponins and polysaccharides to extract gradually and fully as the temperature rises.

Jujube Tea Step 2 — Place seedless jujube in pot and add 1,200ml cold water

Step 3 | Simmer on low heat for 20–25 minutes Bring to a boil on high heat, then immediately reduce to the lowest setting. Keep the lid slightly open. The kitchen will smell remarkable. This slow simmer is where most of the active compounds are released.

Jujube Tea Step 3 — Reduce to low heat, lid slightly open, simmer 20-25 minutes

Step 4 | Add herbs (if blending) Turn off the heat, add your secondary herb (chamomile, lavender, or none), cover, and steep for 3–4 minutes. Do not add these herbs while the pot is still on heat — high temperatures destroy their delicate aromatic compounds.

Jujube Tea Step 4 — Remove from heat, add chamomile or lavender, steep with lid on

Step 5 | Strain and cool before adding honey Strain into a cup and allow to cool to below 60°C (140°F) before adding honey. Honey's beneficial enzymes and antimicrobial compounds are denatured at high temperatures. Adding it to a near-boiling cup is the single most common mistake people make.

Jujube Tea Step 5 — Strain into cup, cool below 60°C, then add honey

Step 6 | Drink 1–2 hours before bed A volume of around 200ml (roughly one standard mug) is appropriate. Drinking too hot will raise your core body temperature — the opposite of what you need for sleep onset.

Safety & Precautions

Group	Guidance
Pregnant women	Plain jujube tea in small amounts (5 pieces or fewer) is generally considered safe. Avoid lavender and ziziphus seed blends. Consult a healthcare provider first.
Diabetics	Jujube is naturally high in sugar. Limit to 5–7 pieces per day; omit or minimize honey.
Infants under 12 months	Never add honey to any drink or food for infants under one year.
Chrysanthemum family allergy	Chamomile belongs to the Asteraceae family. Consult a doctor before use if you have known allergies to this plant group.
Individuals on blood pressure medication	Lavender in large amounts may interact with antihypertensive medications. Consult your physician.

FAQ

Q. Where can I buy jujube (hongjo) and ziziphus seeds in Korea?

Dried jujube (홍조, hongjo) is widely available at traditional Korean markets (sijang), health food stores, and large supermarkets like Lotte Mart, E-Mart, and Homeplus. Look for the label 건대추 (geon-daechu, dried jujube) or 홍조. 

Ziziphus seeds (산조인, sanjoin) are best sourced from traditional herbal medicine shops (hanyakbang, 한약방) or online platforms such as Coupang or Naver Shopping.

For quality, choose domestic Korean jujube from Boeun (보은, North Chungcheong) or Gyeongsan (경산, North Gyeongsang) — these regions are considered the premium producing areas. Look for fruits that are deep red, plump, and uniformly wrinkled.

Q. I've been drinking jujube tea for a week and don't notice a difference. Am I doing something wrong?

Probably not. The research on jujube and sleep quality consistently points to 2–4 weeks of consistent use before clinically measurable improvements emerge. Single-use sedative effects do exist, but they're subtle compared to what builds up over time.

The more immediate benefit many people notice in the first week isn't deeper sleep — it's the ritual itself. The act of brewing and sitting quietly with a warm cup 90 minutes before bed begins to function as a behavioral sleep cue, which is a well-documented mechanism in sleep hygiene research.

Q. Can I drink jujube tea every day?

For healthy adults, yes. The Korean Ministry of Food and Drug Safety considers daily consumption of up to 10–15 pieces of dried jujube safe for healthy adults. For the lavender and chamomile blends, 4–5 times per week is a reasonable rhythm to avoid developing sensitivities to the secondary herbs.

I've been drinking it nightly for over two years without any adverse effects. If anything, the consistency has been more important than the quantity.

Q. Is this the same as Chinese red date tea?

Essentially yes — Ziziphus jujuba is cultivated widely across East Asia, and what Koreans call hongjo (홍조) and what Chinese call hóng zǎo (紅棗) are the same species. The preparation methods and medicinal applications are also broadly similar across Korean, Chinese, and Japanese traditional medicine traditions. The primary distinction is regional cultivar variation, which affects flavor and size but not the core active compounds.

Q. Is jujube tea safe to combine with melatonin supplements?

There is no known direct interaction between jujube and melatonin. However, since both promote sleep onset through different pathways, combining them may produce a stronger sedative effect than intended — particularly if you're also taking a lavender or ziziphus seed blend.
If you use melatonin regularly, start with plain jujube tea first and observe how your body responds before adding herbal blends.

A Final Note — Small Rituals, Real Results

The Korean concept of yangseong (양생, 養生) — the practice of cultivating health through consistent, small daily acts — is central to how traditional medicine in this region approaches wellness. Jujube tea isn't a cure, and it isn't meant to replace medical treatment for clinical insomnia or anxiety disorders. But as a consistent evening ritual, it quietly shifts the conditions inside your nervous system in the direction of rest.

You don't need to understand the mechanism for it to work. But I find that knowing why something works makes it easier to stay consistent — which is ultimately what makes any natural remedy effective.

For English-speaking K-culture enthusiasts and expats dealing with chronic stress: Tonight, skip the third scroll through social media. Boil some water, drop in 10 dried jujube, turn the heat to low, and wait 20 minutes. Your cortisol levels will thank you in about two weeks.

• Jujube (Hongjo) Herbal Tea Blending Guide — Sleep & Stress Complete
• Ziziphus Seed (Sanjoin) Benefits — Korea's Classical Insomnia Herb
• Korean Herbal Teas for Stress Relief — Top 5 Adaptogenic Herbs

References

[1] Heo, Jun (1613). Donguibogam (東醫寶鑑), Herbal Supplement Section — Fruit Category: Jujube (大棗). Joseon Royal Medical Bureau.

[2] You, Z.L., Xia, Q., Liang, F.R., et al. (2010). Effects on the expression of GABA(A) receptor subunits by jujuboside A treatment in rat hippocampal neurons. Journal of Ethnopharmacology, 128, 419–423. DOI: 10.1016/j.jep.2010.01.034

[3] Jiang, J.G., Huang, X.J., Chen, J.Q. (2007). Separation and purification of saponins from semen Ziziphus jujuba and their sedative and hypnotic effects. Journal of Pharmacy and Pharmacology, 59, 1175–1180. DOI: 10.1211/jpp.59.8.0017

[4] Song, Q., et al. (2025). Jujuboside A ameliorates insomnia by restoring GABA/Glu homeostasis and enhancing GABA receptor expression. Journal of Ethnopharmacology. DOI: 10.1016/j.jep.2025.119462

[5] Jiang, N., Zhang, Y., et al. (2025). Ziziphus jujuba polysaccharides mitigate chronic stress-induced cognitive decline by rebalancing gut microbiota and reducing neuroinflammation. Phytomedicine Plus. DOI: 10.1016/j.phyplu.2025.100713

[6] Korean Rural Development Administration (2023). National Food Composition Database v.10 — Dried Jujube. National Institute of Agricultural Sciences. https://www.naas.go.kr

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