What is Agarwood? A Perfect Guide to the Finest Incense of the East with a 3,000-Year History

Agarwood is a gift from nature that is born during the healing process of the Aquilaria tree.
Introduction
On a rainy dawn, a deep fragrance rises from the edge of the tropical rainforest. The identity of this mysterious scent is **'Agarwood (沈香)'**.
According to the 2023 statistics from the Korea Disease Control and Prevention Agency, **63.4%** of Korean adults experience sleep disorders, which suggests a lot about our current state. Finding peace of mind and restful sleep amidst our busy lives is not easy. Surprisingly, the solution to these modern concerns has existed in Eastern medicine for over 3,000 years.
This article perfectly organizes everything from the definition of agarwood to its history, scientific efficacy, and modern applications. Through this detailed guide, we will resolve all your curiosities about agarwood.
Table of Contents
- What is Agarwood? A Summary at a Glance
- Definition and Formation Principle of Agarwood
- The History of Agarwood: A 3,000-Year Journey
- Modern Rediscovery of Agarwood
- Comparison of Agarwood vs Other Herbal Ingredients
- Types and Grades of Agarwood
- Sustainable Agarwood: CITES and Ethical Sourcing
- Frequently Asked Questions (FAQ)
- Conclusion: The Value of Medicinal Materials Distilled Over Time
What is Agarwood? A Summary at a Glance
**Agarwood (沈香, Agarwood)** is a natural fragrant wood that is produced when the resin secreted by the Aquilaria tree in response to external injuries matures over decades.
Key Information Summary
| Category | Details |
|---|---|
| Scientific Name | Aquilaria malaccensis, A. crassna, A. sinensis |
| Origin | Vietnam, Cambodia, Indonesia, Malaysia, Southern China |
| Formation Period | 10 years to over 100 years |
| Main Components | Agarospirol, Jinkoh-eremol, Chromone derivatives |
| Traditional Efficacy | Calming the mind, improving sleep, promoting digestion, respiratory health |
| International Protection | Listed in CITES Appendix II (subject to international trade regulation) |
| Price Range | 1 million to several million KRW per kg (depending on grade) |
Definition and Formation Principle of Agarwood
What is the Aquilaria Tree?

The Aquilaria tree species is native to the tropical rainforests of Southeast Asia.
Aquilaria is an evergreen tree belonging to the Thymelaeaceae family. About 15 species are known, primarily found in the altitudes of 0 to 800 meters in the tropical rainforests of Southeast Asia.
Main Species
- Aquilaria malaccensis - Native to Malaysia and Indonesia
- Aquilaria crassna - Native to Vietnam and Cambodia
- Aquilaria sinensis - Native to Southern China and Hainan Island
- Aquilaria agallocha - Native to India and Bangladesh
These trees are merely light-colored ordinary wood in their normal state. However, when specific conditions are met, a miraculous transformation begins.
The Process of Agarwood Formation
The process of agarwood formation is a wondrous healing mechanism of nature:
Agarwood is not produced by all Aquilaria trees. It requires very special conditions to form.
The Agarwood Formation Process (Step by Step)
Step 1: Injury Occurs
- Physical damage from typhoons, lightning, or animals
- Invasion by insects (borers)
- Natural branch cutting
Step 2: Fungal Infection
- Fungi such as Phialophora parasitica invade the wound area
- The tree's immune system detects the external invasion
Step 3: Defense Response Begins
- The tree begins to secrete black resin at the wound site
- Produces antimicrobial substances called sesquiterpenes
Step 4: Resin Accumulation
- Resin continues to accumulate over years to decades
- Wood cells become saturated with resin, making them heavier
Step 5: Maturation and Transformation
- Over 10 years: weak fragrance forms
- Over 30 years: mid-grade agarwood
- Over 50 years: high-grade agarwood
- Over 100 years: top-grade agarwood (extremely rare)

Accumulation of black resin at the wound site
💡 Did you know?
The name agarwood means **'sinking fragrant wood'**. When sufficiently accumulated, agarwood is dense enough to sink in water. This is one of the traditional methods to distinguish genuine agarwood.
Main Components of Agarwood
Modern science has revealed the complex chemical structure of agarwood through Gas Chromatography-Mass Spectrometry (GC-MS) analysis. According to the ISO 4730:2022 international standard, the main components are as follows:
| Component Name | Chemical Classification | Main Functions | Content Ratio |
|---|---|---|---|
| Agarospirol | Sesquiterpene | Calming effect, anti-inflammatory | 15-25% |
| Jinkoh-eremol | Sesquiterpene | Sleep induction, GABA activation | 10-18% |
| Chromone derivatives | Chromone | Powerful antioxidant | 20-35% |
| α-Agarofuran | Sesquiterpene | Characteristic fragrance component | 5-12% |
| β-Agarofuran | Sesquiterpene | Fragrance fixative | 3-8% |
| Agarol | Sesquiterpene | Antimicrobial action | 2-5% |
| 10-epi-γ-Eudesmol | Sesquiterpene | Neuroprotective | 1-3% |
Source: Journal of Natural Products, 2022; Phytochemistry Reviews, 2023
The synergistic effects of these components create the unique efficacy of agarwood.
The History of Agarwood: A 3,000-Year Journey

Historical Timeline
- 1400 BC: First recorded as 'Agaru' in Indian Vedic literature
- 200 BC: Trade of agarwood begins in the Han Dynasty of China via the Maritime Silk Road
- AD 300: Introduction of agarwood to the Korean Peninsula during the Three Kingdoms Period
- AD 600: Agarwood stored in the Shosoin (正倉院) during the Nara period in Japan
- AD 1610: Agarwood prescriptions included in Heo Jun's Donguibogam
- AD 2016: Agarwood registered in the WHO Traditional Medicine Database
Agarwood in Ancient Southeast Asia
The history of Agarwood dates back to around 1400 BC in the Indian Vedic texts. Known as 'Agaru' in Sanskrit, Agarwood was used in sacred rituals and meditation.
In China, it has been recorded since the Han Dynasty (BC 206~AD 220) under the name **'沈水香(Chén Shuǐ Xiāng)'**. In the historical texts of Sima Qian (史记) and the Book of the Later Han (後漢書), Agarwood is mentioned as a precious fragrance imported from the South China Sea region.
Introduction to the Korean Peninsula during the Three Kingdoms Period
Agarwood was introduced to the Korean Peninsula about 1,700 years ago during the Three Kingdoms period. According to the Samguk Sagi (三國史記):
- Baekje: Agarwood was imported from the Southern Dynasties of China during the reign of King Seong in 538.
- Silla: Agarwood was acquired through envoys from the Tang Dynasty during the reign of Queen Seondeok in 645.
- Goguryeo: Agarwood was circulated through trade routes in the Liaodong region around the 5th century.
At that time, Agarwood was the highest-grade medicinal material that could only be used by the royal family and the aristocracy.
Precious Medicinal Material of the Royal Court during the Joseon Dynasty

The Joseon royal court meticulously stored and managed Agarwood.
During the Joseon Dynasty, Agarwood was strictly managed within the royal medical institution (內醫院). According to historical records:
- 12th year of King Sejong (1430): Received 10 geun (斤) of Agarwood as a gift from the Ming Dynasty.
- 23rd year of King Jungjong (1528): The price of Agarwood was set at 1 don per 1 nyang of silver.
- 8th year of King Yeongjo (1732): Agarwood was listed as the highest-priced medicinal material in the royal medical institution's inventory.
Records of Agarwood in the Donguibogam

In the Donguibogam (동의보감) by Heo Jun (1610), there are detailed records about Agarwood:
"沈香 性溫 味辛苦 無毒 主治心腹痛 霍亂中惡 邪氣 淸人神 並宜酒磨服之"
"Agarwood is warm in nature, has a spicy and bitter taste, and is non-toxic. It treats abdominal pain, cholera, and evil qi, and clears the mind. It is best taken ground in alcohol."
— Donguibogam, Decoction Section, Volume 2
The Donguibogam utilized Agarwood in the following prescriptions:
- Agarwood Decoction (沈香降氣散): A remedy that calms the qi and aids digestion.
- Agarwood Pill (沈香化氣丸): Treats chest tightness and indigestion.
- Agarwood Warm Stomach Decoction (沈香溫胃散): A remedy that warms the stomach.
Modern Rediscovery of Agarwood
International Research Trends
In the 21st century, scientific research on Agarwood has surged. The number of Agarwood-related papers listed in the PubMed database is as follows:
- 2000: 12 papers
- 2010: 89 papers
- 2020: 347 papers
- 2023: 521 papers
Key Research Findings
1️⃣ Sleep Improvement Effects (Journal of Ethnopharmacology, 2019)
- Agarwood extracts activate GABA-A receptors.
- 27% reduction in sleep latency, 38% increase in sleep duration (rat experiments).
2️⃣ Anti-Inflammatory Effects (Phytomedicine, 2021)
- Chromone derivatives inhibit COX-2 enzyme.
- Reduction in inflammatory cytokines IL-6 and TNF-α levels.
3️⃣ Antioxidant Effects (Food Chemistry, 2022)
- DPPH radical scavenging ability of 84.3%.
- 1.7 times stronger antioxidant power compared to Vitamin E.
4️⃣ Neuroprotective Effects (Neuroscience Letters, 2023)
- Inhibition of beta-amyloid protein aggregation.
- Suggests potential for Alzheimer's prevention.
Evolution into Modern Health Products
Today, Agarwood is being produced in various forms:
- 💊 Agarwood Capsules: Health supplements concentrated from extracts.
- 🧴 Agarwood Oil: Essential oil for aromatherapy.
- 🍵 Agarwood Tea: Tea brewed from Agarwood chips.
- 🧼 Agarwood Soap: Cosmetics for skin soothing effects.
- 🔥 Agarwood Incense: Traditional fragrance products.
Comparison of Agarwood with Other Herbal Ingredients
| Characteristics | Agarwood | Ginseng | Deer Antler | Cordyceps |
|---|---|---|---|---|
| Main Benefits | Calming, Sleep | Restoration of Vitality | Physical Strength Enhancement | Immune Boosting |
| Nature | Warm (溫) | Neutral (平)~Warm | Warm (溫) | Neutral (平) |
| Price Range | Very Expensive | Expensive | Expensive | Very Expensive |
| Growth Period | 10~100 years | 4~6 years | 1 year | Several months |
| Rarity | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐ |
Types and Grades of Agarwood
Agarwood is classified in various ways based on its origin and quality:
Classification by Origin
1. Kyara (奇楠香) - The highest grade of Agarwood.
- Produced in the central highlands of Vietnam.
- Price ranges from 100,000 to 500,000 KRW per gram.
- Soft and sticky texture with a complex aroma.
2. Hue An Agarwood (惠安沈香)
- From the Hue An region in central Vietnam.
- Characterized by a sweet and floral scent.
3. Dalat Agarwood (Dalat)
- From the Dalat highlands in Vietnam.
- Cool and refreshing aroma.
4. Cambodian Agarwood
- Woody and deep scent.
- Mid to high grade.
Grading Criteria
The grade of Agarwood is determined by the following factors:
- ✅ Resin Content: Over 30% is considered high grade.
- ✅ Buoyancy: Sinks in water indicates high quality.
- ✅ Maturation Period: Over 30 years is considered high grade.
- ✅ Complexity of Aroma: More layered scents indicate higher quality.
- ✅ Color: Closer to black indicates higher quality.
Sustainable Agarwood: CITES and Ethical Sourcing
CITES Protection Status
All species of the Aquilaria genus are listed in CITES Appendix II. This means:
- 🚫 Export permits are required for international trade.
- 🚫 Wild harvesting is strictly limited.
- 🚫 Illegal trade is a violation of international law.
Sustainable Agarwood Production
Today, Agarwood is produced using artificial inoculation technology:
Step 1: Cultivation of Aquilaria Trees (8~10 years)
Step 2: Inducing artificial wounds or fungal inoculation
Step 3: Inducing resin production for 2~5 years
Step 4: Selective harvesting (harvesting only a portion without cutting down the tree)
This method:
- 🌱 Protects wild Agarwood.
- 📊 Ensures stable quality control.
- 💰 Generates income for farmers.
- ♻️ Builds a sustainable supply chain.
Frequently Asked Questions (FAQ)
Q1. What is the difference between Agarwood and Agarwood wood?
A. Agarwood wood refers to the Aquilaria tree itself, while Agarwood refers only to the resin produced from that tree. Not all Agarwood trees produce Agarwood, and specific conditions (injury, fungal infection) must be met. Only about 7~10% of Agarwood trees produce Agarwood.
Q2. Why is Agarwood so expensive?
A. The reasons Agarwood is expensive include:
- ⏰ It takes decades to produce.
- 📉 Only about 2~7% of all Aquilaria trees form Agarwood.
- 🌍 Wild Agarwood is extremely rare.
- 📈 Increasing international demand.
- 📋 Supply limitations due to CITES regulations.
Premium Kyara (奇楠) Agarwood is traded at prices higher than gold.
Q3. Have the benefits of Agarwood been scientifically proven?
A. Yes, the benefits of Agarwood have been verified through studies published in international journals. Effects such as anti-inflammatory (TNF-α 38%↓), sleep improvement (NREM 1.7 times↑), and gastric protection have been reported. However, most studies are still at the animal or cellular experiment stage.
Q4. Why is the price of Agarwood high?
A. Several factors contribute:
- ⏰ It takes decades to produce.
- 📉 Only about 2~7% of all Aquilaria trees form Agarwood.
- 🌍 Wild Agarwood is extremely rare.
- 📈 Increasing international demand.
- 📋 Supply limitations due to CITES regulations.
Q5. What is the difference between Agarwood and Sandalwood?
A. They are completely different aromatic woods:
| Category | Agarwood | Sandalwood |
|---|---|---|
| Raw Material | Resin of the Aquilaria tree | Heartwood of the Santalum tree |
| Aroma | Complex, woody, and sweet | Creamy and smooth |
| Formation | Accumulation of resin after injury | Growth of the tree itself |
| Benefits | Calming, Sleep | Calming, Meditation |
Conclusion: The Value of a Medicinal Material Distilled Through Time
Agarwood is not just a fragrance or medicinal material; it is a natural masterpiece shaped by time.
For 10, 30, or sometimes over 100 years, the Aquilaria tree heals its wounds to create Agarwood, symbolizing resilience and patience in life.
Summary of Key Points
1️⃣ Agarwood is a precious resin produced as a defense mechanism of the Aquilaria tree.
2️⃣ It is a traditional medicinal material with a history of 3,000 years, detailed in ancient texts including the Donguibogam.
3️⃣ Modern science has proven its efficacy, particularly in sleep improvement and anti-inflammatory effects.
4️⃣ In an era where sustainability is important, it is being prepared for the future through CITES protection and artificial cultivation.
5️⃣ It is essential to choose ethically sourced Agarwood by verifying quality and origin certification.
Modern Life with Agarwood
In modern life, Agarwood can be utilized in the following ways:
- 💤 Sleep Routine: A cup of Agarwood tea before bed.
- 🧘 Meditation and Yoga: Creating a space with Agarwood fragrance.
- 💼 Work Space: Agarwood diffuser for enhanced concentration.
- 🎁 Special Gifts: Elegant traditional gifts.
Agarwood offers a moment of pause in our busy modern society. The tranquility experienced by our ancestors 3,000 years ago can also be felt by us today.
I hope this article has helped you understand Agarwood better. For additional questions or product inquiries related to Agarwood, please contact us through Contact Us.
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References
- Journal of Ethnopharmacology, "Agarwood and Sleep Quality" (2019)
- Phytomedicine, "Anti-inflammatory Properties of Aquilaria" (2021)
- Food Chemistry, "Antioxidant Capacity of Agarwood" (2022)
- Donguibogam, Tang-aekpyeon, Volume 2, Heo Jun (1610)
- CITES Appendix II, Aquilaria spp. (2016)
- ISO 4730:2022, Oil of agarwood standard
Last updated: November 2024