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What is the difference between red ginseng and ginseng?

Why are the prices of red ginseng and ginseng different, even though they come from the same root? This is a summary of the differences between red ginseng and ginseng, clearly organized based on data from the Ministry of Food and Drug Safety, covering the components that change during processing (such as Rg3), types and contents of ginsenosides, and storage periods.

Same Root, Different Journey

When choosing red ginseng products, a natural question arises. "Isn't ginseng and red ginseng basically the same thing?" Two products displayed side by side on the supermarket shelf, one is white and the other is reddish-brown.

In fact, both start from the same root. So what makes these two different?

💡 You can find answers to such questions!

"What’s the difference between red ginseng and ginseng?"

"Why is red ginseng more expensive?"

"White ginseng, red ginseng, black ginseng... aren't they all the same ginseng?"

"Which one should I take for better effects?"


Red Ginseng vs Ginseng at a Glance

Classification

Ginseng (White Ginseng)

Red Ginseng

Processing method

Dried

Steamed + Dried

Color

White/Light Yellow

Reddish Brown

Types of Ginsenosides

About 15 types

About 30-40 types or more

Rg3 content

None

Present (unique to red ginseng)

Shelf life

Short (1-3 years)

Long (10 years or more)

Price

Relatively inexpensive

Relatively expensive

Table 1: Major Differences Between Ginseng and Red Ginseng.



The Starting Point is the Same — Raw Ginseng (Fresh Ginseng)

Both start from raw ginseng (fresh ginseng). The decisive difference lies in the processing direction.

  • Raw Ginseng → Dried → White Ginseng (Ginseng)

  • Raw Ginseng → Steamed → Dried → Red Ginseng

The "red (紅)" in red ginseng comes from the red color that occurs during the processing. Raw ginseng has about 75% moisture, making it difficult to store for more than a week. Hence, methods to improve shelf life through steaming have been developed since long ago.



Why Does It Change When Steamed?

Chemical reactions occur due to heat during the steaming process. It doesn't just change the color; the components themselves change.


1️⃣ Generation of New Compounds Unique to Red Ginseng

Ginsenosides like Rg3, Rg5, Rk1, Rh2, which are unique to red ginseng, are newly generated during this process. In particular, Rg3 is the key component of red ginseng that has been reported through studies for its anti-cancer effects and immune checkpoint inhibition.


2️⃣ A Significant Increase in the Types of Ginsenosides

According to a study published in the Korean Journal of Food Science, structural transformations of ginsenosides occur during the steaming process.

  • Ginseng: About 15 types

  • Red Ginseng: About 30-40 types or more

3️⃣ Improved Absorption and Preservation

During steaming, starch gelatinizes, allowing effective components to be released better, and improving digestion and absorption. Moreover, enzyme inactivation and increased antioxidants significantly extend the shelf life.



Component Comparison: Differences at a Glance


📊 Comparison of Major Ginsenoside Content

Component

White Ginseng

Red Ginseng

Change

Rg1

2.21 mg/g

3.23 mg/g

Increase (about 46%)

Rb1

3.29 mg/g

7.18 mg/g

Increase (about 118%)

Rg3

0 mg/g

Generated

Newly generated

Table 2: Comparison of Major Ginsenoside Content Between White Ginseng and Red Ginseng (Source: Korean Journal of Food Science)

Characteristics by Component

  • Rb1: A component known for its anti-inflammatory effects, most contained in red ginseng

  • Rg1: A component reported to have efficacy for neurodegenerative diseases

  • Rg3: A unique component of red ginseng reported for inhibiting cancer cell proliferation and vasodilation effects


🧪 Other Compounds Produced During Red Ginseng Processing

  • Maltol: An antioxidant component generated through the Maillard reaction

  • Arginyl-fructosyl-glucose: An amino acid derivative formed by the combination of sugars and amino acids

  • Panaxytriol: A component reported to have anti-cancer activity



Shelf life is also entirely different

Ginseng (White Ginseng) can be stored for about 1 year after moisture removal, and approximately 3 years when vacuum-packed. If not properly preserved, it can be spoiled by bacteria.

Red Ginseng, due to reduced moisture and enzyme inactivation through steaming, can be stored for more than 10 years when vacuum-packed. In the Chinese region, older red ginseng is sometimes considered better quality.

→ This is one of the reasons why red ginseng is popular as a "gift".

📌 Note: For processed red ginseng products (extracts, teas, tablets, etc.), please check the expiration date indicated on the product.



What is the right choice for me?


When Ginseng (White Ginseng) is Suitable

  • For light health management

  • Used in cooking like Samgyetang

  • When budget is limited


When Red Ginseng is Suitable

  • To be taken regularly as a health supplement

  • Expecting recognized functionality by the Korean FDA

  • When long-term storage is needed or for gifts


Official Functions of Red Ginseng Recognized by the Korean FDA

Functionality

Daily Ginsenoside Standard Content

Boosting immunity

3~80mg

Improving fatigue

3~80mg

Improving blood circulation (inhibiting platelet aggregation)

2.4~80mg

Improving memory

2.4~80mg

Antioxidant

2.4~80mg

Women’s health during menopause

25~80mg

📌 Key Point: If you take it as a health supplement, it is recommended to choose red ginseng products that have the Health Functional Food Certification Mark recognized by the Korean FDA. Red ginseng functional raw materials must contain a total ginsenoside content of 2.5mg or more of Rg1+Rb1+Rg3 per 1g of functional raw material.



Wait, what is Black Ginseng?

If red ginseng is steamed repeatedly multiple times, it becomes black ginseng.

  • Raw Ginseng → 1-2 times steaming → Red Ginseng

  • Red Ginseng → 3-9 times steaming → Black Ginseng (Gujeunggupo)

Gujeunggupo (九蒸九曝) is a traditional method that repeats the steaming and drying process nine times and has been used since ancient times for medicinal processing even in the Joseon royal court.

Through the repeated heat maturation process, the color changes from white (raw ginseng) → reddish-brown (red ginseng) → black (black ginseng), and the content of effective components such as Rg3, Rh2, Rk1, and Rg5 increases significantly.

⚠️ Caution: Many black ginseng products have not yet been recognized as functional raw materials for health supplements by the Korean FDA. Please check for Health Functional Food Certification when purchasing.



In Conclusion

While red ginseng and ginseng originate from the same root, they undergo significant changes in components and characteristics through the steaming process.


✅ 5 Key Differences

  1. Unique components like Rg3 exist only in red ginseng — Newly generated during the steaming process

  2. Types of Ginsenosides — Red ginseng 30-40 types vs. white ginseng 15 types

  3. Shelf Life — Red ginseng over 10 years vs. white ginseng 1-3 years

  4. Official functionality recognition by the Korean FDA — 6 recognized functionalities

  5. Major Ginsenoside content — Rg1, Rb1, etc. significantly higher in red ginseng


📋 Points to Check When Purchasing

If you are consuming it as a health supplement, make sure to check the following four items.

  • ✅ Health Functional Food Certification Mark

  • ✅ Ginsenoside content (based on daily intake)

  • ✅ Manufacturing date and expiration date

  • ✅ GMP (Good Manufacturing Practice) certification status


⚠️ Precautions When Taking

  • If you are taking anticoagulants, be cautious about consuming red ginseng

  • Diabetics or those scheduled for surgery should consult with a specialist before taking it

  • There can be significant differences in ginsenoside content among products, so be sure to check the ingredient list.


References

View of the Goryeo Red Ginseng Company