A 50-year traditional Korean lung-clearing supplement, formulated by Dr. Seo Hyo-seok in 1972 from 20+ classical Korean botanicals — supporting respiratory wellness, immune balance, and skin barrier from the lung outward.
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Pyunkang-Hwan is a traditional food supplement developed by Korean physician Dr. Seo Hyo-seok in 1972. Built around 20+ traditional Korean medicinal herbs — including Platycodon, Schisandra, Ophiopogon, Mulberry-bark, and Aster — it is intended to support lung, respiratory, and skin-barrier wellness from the constitutional level. Pyunkang-Hwan is manufactured in a Korean GMP-certified facility, with every batch screened for heavy metals and microbial limits, and is currently used by 160,000+ customers across Asia, North America, and Australia.
Adults: 5 pellets twice daily. Adjust under the guidance of a qualified Korean medicine practitioner based on your constitution and goals.
Take 30 minutes after breakfast and dinner with warm water. Avoid taking on an empty stomach to prevent gastric discomfort.
Korean medicine works gradually. We recommend a continuous 3-month cycle, paired with consistent sleep and dietary adjustments, to observe constitutional change.
Refined through Dr. Seo's 50 years of clinical practice. Each herb is listed with its Latin botanical name and a traditional reference so you can cross-check with your physician.
Supports the lungs and throat, promotes expectoration. Traditionally treated as a primary lung-clearing herb.
Reference: Compendium of Materia Medica · Vol. 12
Platycodon grandiflorus
In Korean medicine, the lungs are the central organ governing respiration and the skin barrier. Pyunkang-Hwan centres on lung-clearing, supporting the upper airway, the skin, and overall immune balance together.
Dr. Seo's clinical observations and adjustments since 1972 have allowed the formula to be tested across three generations of users — not held up only by a theoretical paper.
160,000+ cumulative customers across Asia, North America, and Australia. The monthly return rate has remained below 3% over the long term.
I'd accepted that my seasonal rhinitis was just my normal. From the second month, I was sleeping through the night again — even my husband mentioned my snoring had dropped a lot.
Because I'm on long-term blood-pressure medication, customer service translated the full ingredient list for my doctor before I placed the order. That kind of service is rare.
First month I didn't notice much and almost gave up. From the second month my skin felt more stable and the atopic redness faded. Give it at least three months.
※ Reviews are submitted by verified purchasers and shown unedited. Outcomes vary from person to person.