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 Throughout the Body

Royal Secret Ingredient

Ingredient for Vitality

From eel to ingredient, a vitality-focused design with patented formulation proportions

Goji Berry · Yam · Whole Garlic

The royal secret ingredient uses only general food raw materials, not herbal medicine raw materials.

Patent No. 10-2201212

• Separate extraction of fresh water eel
• Separate extraction of ingredients
• Balanced blending after extraction

Three Major Nutritional Ingredients That Replenish Vitality

Representative Nutrients and Components Based on Raw Materials

Goji Berries

[Image: A bowl of dried goji berries]

Chinese Yam

[Image: Sliced pieces of Chinese yam on a woven tray]

Whole Garlic

[Image: Several whole heads and cloves of garlic]

Core Nourishing System

Goji Berries

• Betaine
• Vitamin C
• Beta-carotene
• Zeaxanthin
• Polyphenols
• Dietary Fiber

Chinese Yam

• Mucilage
• Amylase
• Dioscorin
• Arginine
• Potassium
• Dietary Fiber

Whole Garlic

• Allicin
• Vitamin B Complex
• Selenium
• Potassium
• Arginine
• Dietary Fiber

Summary: We have organized the key representative ingredients contained in natural raw materials at a glance.

Note: ‘Mucilage’ is a general term commonly used for the mucus-like components in Chinese yam.

Note: This information pertains to general nutritional and compositional details of raw materials, not finished products.

Source: National Standard Food Composition Table, Food Nutrient Database

This eel juice is made with a core combination of dried jujube, sesame, and whole garlic, carefully balanced and simmered to bring out the best flavor in the eel itself. It is suitable for anyone to enjoy regardless of gender or body type.

[Image: Certification report document titled "Jeil Analysis Center" showing a test result for pesticide residues.]

Test Results for 463 Types of Pesticide Residues

Freshwater Eel

Representative Nutritional Components from Nature

Learn More: Rich Nutrition Compared to Beef

Based on the Food Nutrient Database and National Standard Food Composition Table, freshwater eel may show higher levels of Vitamin A content compared to beef.*

[Image: A bar graph comparing Vitamin A content in freshwater eel and beef, showing significantly higher levels in freshwater eel]

* This image provides general nutritional information about freshwater eel raw material, not specific product details.
* This information is not intended for disease prevention or treatment and does not represent health functional food data.
* Comparison is based on the Food and Drug Safety Ministry Nutrient DB and National Standard Food Composition Table.
* Source: Food Nutrient DB, Rural Development Administration National Standard Food Composition Table

You Will Understand Once You Try It

There is a reason it even received a patent

From eel to the energy-focused auxiliary ingredients, the combination of raw materials and extraction methods have been meticulously designed.

[Image: Photo showing eel, a cup of dark liquid, a packet labeled "왕실 비책 GOLD", and various herbal ingredients including garlic and sliced root]

Careful Design Contained in One Packet

Choosing good raw materials is not the end—it is also about thinking differently through the entire manufacturing process.

Patent No. 10-2201212

Royal Secret

Wangsilbichaek GOLD

[Image: A box labeled "왕실비책 GOLD (Wangsilbichaek GOLD)" alongside several individual sachets with the same label]

Long-Time Low-Temperature Extraction Method

Unlike the method of extracting quickly at a high temperature, the long-time extraction method at a low temperature is the core know-how of Wangsilbi Tea.

Although slow, the extraction time is increased by 3 times compared to the standard to fully capture the nutrients, resulting in a richer and deeper flavor.

Especially because no herbal medicines are used, even after a long time, the taste does not become bitter, and it is possible to consume continuously without concerns about side effects from the herbs.

Check Point 06

The Royal Secret's Commitment to
The Pure 4 No's Principle

Made only with honest ingredients and safe methods, this reassuring eel extract retains only the essential components your body truly needs, completing a healthy liquid.

• No herbal medicine additives
• No sugar
• No chemical additives
• No artificial coloring

[Image: Products displayed include a white and gold box labeled "Royal Secret GOLD" with matching individual packet sachets, placed next to a wooden decorative box. Natural elements like moss and driftwood are used for presentation.]

Check Point 07

From Raw Material Supply to Production and Delivery
A Trustworthy Direct Management System

From material supply to production, distribution, and delivery,
all processes are directly managed to ensure reliability.

General Distribution Method

• Production Site
• Wholesale/Distribution Company
• Manufacturer
• Seller
• Consumer

Wangsilbi Chek Distribution Method

[Image: Diagram showing 'Wangsilbi Chek' product flows directly to Consumer]

Wangsilbi Chek

Consumer

Wangsilbi-Chek is directly manufactured.

Best cost-effectiveness all-inclusive

Wangsilbi-Chek's Manufacturing Principle

Wangsilbi-Chek does not engage in OEM production.

From raw material procurement to direct manufacturing

[Image: Exterior of a gray industrial building with a sign on the upper left side reading "신강몰러스"]

[Image: A clean, sterile production facility corridor with light-colored walls and ceiling, equipped with security cameras and multiple doors on the right side.]

[Image: A close-up view of a large stainless steel industrial mixing or processing vat with perforations, surrounded by machinery and yellow coiled cables.]

[Image: A white electronic device mounted on a wall, labeled with the brand "HANVIT," featuring three circular indicators or buttons, with the top one illuminated blue.]

[Image: Two side-by-side views of a compact boot washing station with faucets, hoses, a brush, and white rubber boots inside a metal enclosure. One view shows a wall-mounted sink and water heater with piping above the boot washer.]

The manufacturing facility of Wangsilbi-chaek is operated 365 days a year by implementing the CESCO food hygiene care and quarantine system.

Test and Registration Certificates

Unsmelly Eel Juice Perfected After Many Failures

Hello. I am Kim Gang-min, the inventor of Wangsil Bi Chaek.

It is well known that eel is good for the body, but many people have felt burdened by its unique fishy smell and greasiness.

Especially for children with weak stomachs, it has been a food that is not easy to consume.

To solve this problem, I undertook long hours of research and trial and error.

As a result, while preserving the strengths of eel,

we were able to complete the invention patent manufacturing method of Wangsilbichaek that reduces the burden of greasiness and fishy odor.

And now, over 30,000 reviews are showing the taste and quality.

Now, everyone, regardless of age or gender, can enjoy eel juice more conveniently.

We hope you personally experience it.

Wangsilbi Check, Proven by Patents and Certifications

Wangsilbi Check has proven its value through numerous certifications, from invention patents to trademark, design, and service patents.

[Image: Gold medal seal for the 2026 Korea Brand Evaluation Institute Award]

2026 Korea Brand Evaluation Institute Consumer Evaluation Grand Prize 1st Place

Korea Brand Evaluation Institute

[Black Vinegar Concentrate & Eel Extract] Category

Wangsil Bi Baek [3 Consecutive Years]

This brand is awarded this prize for leading the establishment of a high-quality consumer culture through customer satisfaction management and being selected as the 2026 Korea Brand Evaluation Institute Consumer Evaluation Grand Prize winner.

2026 Korea Brand Evaluation Institute Consumer Evaluation Grand Prize 1st Place Korea Brand Evaluation Committee

We don't make it in advance and store it in the warehouse!

Don't worry about spoilage even in the summer!

Of course, applying the 3STEP sterilization system and 'Sterile 4-layer pouch packaging', this premium eel extract can be stored at room temperature without direct sunlight for up to 12 months even in summer.

[Image: A box labeled "왕실비책 GOLD" (Royal Secret GOLD) and several individual gold sachets of the same product]

[Image: Two pages of a test report from KCL (Korea Conformity Laboratories). The first page contains official headers and signatures, while the second page lists various chemical substances with their respective test results highlighted in a box. A label saying "불검출" (Not Detected) points to the results box.]

Food Packaging Environmental Hormone Test Report

30 Pack

Wangsilbichaek GOLD

60 Pack

Wangsilbichaek GOLD

120 Pack

Wangsilbichaek GOLD

Recommended For These People

01

Parents who need vitality due to decreased energy

02

Middle-aged adults easily fatigued due to low physical strength

03

Office workers tired from busy daily life and work

04

Students needing physical strength and concentration

05

Women who need health management before and after childbirth

06

People who need recovery and condition management after exercise

Royal Secret Packet — Eel Extract

[Image: A packet of Royal Secret Packet Gold eel extract product with garlic and herbs on a wooden board and a traditional tea set in the background]

Warmhearted Care for Sharing Health

The most sincere way to convey health to your loved ones,

Royal Secret Packet Eel Extract.

Product Information Notice

Product Name Wangsilbi Chaek Gold

Product Type Extract Processed Food (Fermented Product)

Volume 80ML

Ingredients and Content Freshwater eel extract 92% (domestic freshwater eel, solid content 9%, purified water), garlic (domestic), longan seed shell (Thailand), maca root, goji berry flower buds

How to Use Take one packet in the morning on an empty stomach. Can be taken comfortably regardless of other meals. Consume immediately after opening or warm before drinking.

Precautions for Use

Be careful as the packaging may cause injury when opening or consuming. Do not consume if the packaging is deformed, swollen, damaged, or if the contents have changed. Sediment may occur but it is from raw ingredients, so shake well before consumption. If you have specific allergic conditions, check the ingredients carefully before use.

Storage Precautions

Keep out of reach of children. Store in a cool place away from direct sunlight and high temperature/humidity. Refrigerate after opening and consume as soon as possible.

Customer Service (Direct) 010-4808-9189

Delivery Inquiry 1661-7127

Returns and Exchange Locations Nationwide retail stores and distributors

Packaging Material

Polyester + Aluminum + Polyethylene PE (inner layer)

* Please separate and recycle used packaging.

* Products with damage or defects during return or exchange process will be exchanged at the place of purchase.

* This product is subject to exchange or compensation under the Korea Fair Trade Commission consumer dispute resolution standards.

Expiration Date Until the date indicated on the upper front (12 months from the manufacturing date)