The World’s First Black Ginseng Developer (Since 2001)
Crafted through the traditional Gujeung-Guppo method—steaming Korean ginseng in iron cauldrons and sun-drying it to perfection.
With a legacy of craftsmanship passed down through generations, we preserve uncompromising quality and enduring value.
Why Choose Master Jang Black Ginseng Institute?
World’s first black ginseng developer (2001)
Pioneering the art of Gujjeung-Guppo—nine-time steaming and sun-drying—to create the purest form of black ginseng.
Traditional Gujeung-Guppo method – steamed and sun-dried 9 times
Refining ginseng through nine cycles of steaming and sun-drying, unlocking its deepest flavor, aroma, and potency.
Generational craftsmanship and sustainable production
Combining time-honored family traditions with eco-friendly practices to preserve both heritage and nature.
Signature Product
Master Jang Blackginseng Stick for kiz
Jang Seok-yeol black ginseng extract is sweetened with organic ingredients so that children can eat it.
Master Jang Blackginseng Tea
It is a leachate in the form of brewing the raw material directly by trimming only the semi (small roots), which is only 5% of the total black ginseng.
Our Team
Why Us?
Tradition Reimagined
We reinterpret the timeless Gujeung-Guppo method for today’s lifestyle, delivering black ginseng that resonates with modern wellness needs.
Certified Quality & Recognition
Our excellence is backed by multiple certifications, trademark registrations, and industry awards, proving trust and credibility worldwide.
Sustainability from Farm to Package
We source raw ginseng directly from local farms and use FSC-certified recyclable packaging, ensuring both community support and environmental care.
Our Youtube
Our Address
70 Eojae-gil, Burimyeon, Geumsan, Chungnam, Korea