First Brand of Eel Juice to Surpass 30,000 Customer Reviews

The high quality of Wangsilbi Chaek is proven by the average purchase review score.

4.85 Rating

* Based on official Naver aggregate data as of November 2025

5 Reasons to Choose Wangsil Bichaek

1. Safe, Preservative-Free Eel Extract

Reliable ingredients with safety as the top priority

2. Patented Odor & Oil Removal

Special technology minimizing fishy smell and greasiness

3. Ingredient Composition Designed for Stamina

Carefully selected ingredients considering stamina

4. Patented Far-Infrared Inclusion

Manufacturing point applying differentiated technology

5. Convenient Intake with Unlimited Herbal Ingredients

Comfortable to consume without burden of herbal medicine

Patent Certified Additive-Free Eel Extract

Wangsil Bichael Gold

South Korea Ranks 1st in Antibiotic Use

'Serious Overuse'

Antibiotic use is 7.6 times higher than in Norway

Source: Baby News (https://www.ibabynews.com)

Source: 2009-03-19 SBS

Antibiotics detected in sand lance, eel, and others...

[Image: Photo of sand lance fish]

Source: 2018-12-06 Geumgang Daily

Thought to be antibiotics in eel, the fermented substance ‘Nitrofuran’ was sprayed

[Image: Photo of eel]

Antibiotics do not completely disappear even when heated above 100°C, can accumulate inside the body, and create antibiotic-resistant bacteria.

Certified antibiotic-free farms account for less than 1% of all farms.

Eels Raised at a Water Quality Safe for Human Consumption Without Antibiotics

POINT 01.

Certified by National Official Inspection

Inspection completed by a trustworthy national official water quality testing agency for drinking water.

POINT 02.

Zero Heavy Metal Harmful Substances

No harmful substances such as mercury or cadmium were detected at all.

POINT 03.

Clean Breeding Site Free from Bacterial Contamination

Zero total coliform bacteria and zero fecal coliform bacteria maintained in a clean environment.

POINT 04.

Strict Drinking Water Standard ‘Suitable’

Safe water that passes all standards for drinking water.

Verify the Safe Antibiotic-Free Eel Certification

[Image: Certification document titled "Certificate" with highlighted text reading "Antibiotic-free fishery product" and "Eel"]

Antibiotic-Free Certification

[Image: Test report document with highlighted text reading "New Hygiene Bio-tech Gold" and a note about test results confirming no detection of all substances except detected substances]

Antibiotic-Free Certification

[Image: Test and inspection result document featuring a table with inspection items, criteria, results, and judgments for bacterial count and coliform bacteria, all marked as conforming]

Bacterial & Coliform Bacteria Test Results

What type of eel does Wangsilbi use as its raw material?

Wangsilbi exclusively selects 100% domestically produced native Japanese eel (japonica eel). Like beef, eels are graded, and domestically produced eels are classified into several categories. In terms of price and quality, the highest grade japonica eel has a dark-colored back and a white belly, with low fat content and firm flesh, making it very flavorful. It is the most sought-after representative freshwater eel.

[Image: Several live eels in a water tank.]

Wangsilbichaek is patented for removing odor and oil, making it easy for anyone to consume.

Invention Patent Certification

Method for manufacturing eel extract

Title of the invention
Method for making eel extract

Patent number: No. 10-2201212

Effect of the Invention

Because eel extract and ingredient extract are extracted separately using different extractors and then mixed, it is possible to eliminate the distinctive odor of eel and separately isolate only the oily components of the eel.

* The above content is a partial description of the details registered with the Korean Intellectual Property Office.

Wangsilbichaek
does not process by removing any ingredients
to minimize nutritional loss of eel.

Specially Made with 100% Eel Extract Only

Eel Extract 92% + Auxiliary Ingredient Extract 8% Mixed

Completion of Deep and Rich Eel Sauce

Completed with a richer flavor by containing 92% eel extract.

[Image: Icon with "Eel Extract 92%"]

For over 10 years, we have been producing eel extract daily, conducting hundreds of studies and experiments to create a better extract.

The conclusion reached at the end is clear.

Eel extract is not determined solely by the amount of the original ingredient.

No matter how much is added, if it is not intensively extracted, satisfaction can differ.

The Decisive Difference Between Content and Concentration

Even using the same raw materials, how richly they are extracted creates the real value.

Simple Content (Content)

A measure that focuses on how much is included.

Wangsilbichaek considers the density packed in one pack more important than just the amount included.

Note: Adding more does not mean it is richer.

Actual Concentration (Concentration)

Ultimately, it is how densely packed the contents are in one pack.

Wangsilbichaek pursues a high concentration extract.

A thicker concentration means a better syrup.

Wangsilbichaek is 9% Concentrated Eel Extract.

Concentration = Solid content

9%

Overwhelming high concentration level

True rich eel extract is proven by numbers.

Solid content refers to the ratio of pure nutritional components excluding moisture.

Wangsilbichaek promises sincerity with these numbers.

Promise of Confidence

If you are not satisfied with the taste and richness,

100% Refund

We promise this because we are confident in the concentration. Please feel free to check it yourself.

Eel juice,

no matter how high the content, is a waste of money if it is not absorbed.

Absorption rate is the key, just as concentrated strength is.

Wangsilbichaek has applied a far-infrared patented process considering not only more comfortable intake but also absorption.

* Source: Naver Knowledge Encyclopedia

* This information is unrelated to the product.

Proven by Patent and Test Results

Title of Invention
Liquid containing far-infrared ray and method for producing the same

Patent Number
No. 10-2795442

[Image: Patent certificate from the Korean Intellectual Property Office]

Test Name
Royal Blue Dragon's Blood

[Image: Test report from the Korea Far-Infrared Application Research Institute]

Korea Far-Infrared Application Test Report

*This information is provided for better understanding and individual results may vary.

Far Infrared Rays That Are Rapidly Absorbed Throu