Chinese Buckeye Seed

Traditional Use

Primary Actions

• Regulates Liver and Stomach Qi while soothing the Middle Burner - used for epigastric pain, abdominal distention, chest oppression, and hypochondriac discomfort when constrained Liver Qi attacks the Stomach.
• Harmonizes the Stomach and alleviates pain - a small but reliable qi-regulating seed for chronic stomachache, poor digestion, and a stifling sensation in the upper abdomen that improves when stagnant Qi begins to descend.
• Relieves chest and breast distention from constrained Qi - especially applied when emotional or premenstrual Liver Qi stagnation produces flank tension, breast fullness, or diaphragmatic tightness.
• Kills intestinal parasites - a lesser but still recorded traditional use when abdominal discomfort, malnutrition, or intestinal irritation is linked with parasitic infestation.

Secondary Actions

• Materia medica sources describe Suo Luo Zi as particularly good for stubborn Stomach pain, which sets it apart from more commonly used citrus qi regulators that are broader but sometimes less focused on epigastric pain.
• Its clinical profile sits between qi-regulating fruit and seed medicine: it moves constrained Qi, eases pain, and supports the Middle Burner without the stronger drying or dispersing action of harsher aromatic regulators.

Classic Formulas

• Suo Luo Zi with Fo Shou and Ba Yue Zha - a traditional qi-regulating combination for chest, hypochondriac, and epigastric distention from Liver-Stomach disharmony, especially when appetite is reduced and pain is worsened by emotional constraint.
• Suo Luo Zi with Lu Lu Tong, Yu Jin, and Xiang Fu - used in materia medica pairing traditions for premenstrual breast distention and painful constrained Liver Qi with concurrent upper abdominal stagnation.

Classical References

• American Dragon records Suo Luo Zi as sweet and warm, entering the Liver and Stomach to regulate Qi, relieve the Middle Jiao, descend rebellious Qi, and stop epigastric pain while also retaining a classical antiparasitic use.
• TCM Wiki lists the seed under 娑罗子 / 娑羅子 and summarizes the traditional actions as harmonizing the Stomach, regulating Qi, alleviating pain, and killing parasites, with qi and yin deficiency as the main constitutional caution.
• Modern herb-genomics work on Aesculus wilsonii notes that the 2020 Pharmacopoeia of the People's Republic of China recognizes the seeds of Aesculus wilsonii, Aesculus chinensis, and Aesculus chekiangensis as medicinal sources of Semen Aesculi (Suo Luo Zi), used for dyspnea, abdominal distention, and epigastralgia.