Dingkundan: Guangyuyuan's Second Historical Product Line

Disclaimer: This page is for historical and cultural education only and is not medical advice. References to traditional use describe what historical sources record or what is traditionally believed — not a claim that this product treats, cures, or prevents any disease. These statements have not been evaluated by the U.S. Food and Drug Administration or any other regulator. Consult a qualified physician with any health questions.

Dingkundan (定坤丹) is Guangyuyuan's second historical product line, alongside Guilingji. According to the house's own historical account, the Dingkundan formula entered the Guangshengyi lineage's history in 1739 — nearly two centuries after Guangshengyi itself opened in 1541.

A history-rich, search-light product

Unlike Guilingji, Dingkundan does not carry a documented pre-modern overseas export or trade-route story in the sources checked for this site. Its modern search footprint reflects that: the simplified-Chinese term 定坤丹 shows a modest global search volume, with a small pocket of interest in the United States, but the modern romanized English form "Ding Kun Dan" returns essentially no measurable search volume in the tools checked for this project.

Older transliterations — "Ting Kun Tan," "Ting Kuen Dan" — exist as alternate spellings for retrieval purposes but likewise show no measurable current search volume.

In short: Dingkundan is a real, long-standing part of Guangyuyuan's product history — even if it hasn't yet built the kind of name recognition abroad that Guilingji has.