Immature Bitter Orange Slice (Citrus Aurantium)

Immature Bitter Orange Slice (Citrus aurantium), known in Traditional Chinese Medicine as Zhi Shi (枳实), is the dried, unripe fruit of the bitter orange tree, sliced to preserve its aromatic oils and active compounds. These firm, bitter slices are traditionally used to regulate qi, break up stagnant energy, and resolve accumulations, especially in the digestive and abdominal areas.

Zhi Shi is especially valued for its ability to move the qi downward and relieve fullness, making it ideal for symptoms such as bloating, distention, constipation, and discomfort from food stagnation or poor digestion. Unlike its mature counterpart, Zhi Ke, which is milder and more tonifying, Zhi Shi has a stronger, more dispersing action—often used in conditions involving abdominal masses, phlegm obstruction, or digestive sluggishness with fullness and pressure.

In TCM formulas, it is frequently paired with herbs like Hou Po (Magnolia bark), Da Huang (Rhubarb), or Bai Zhu (Atractylodes) to enhance its ability to clear accumulations and support spleen function. It is also sometimes included in weight regulation or metabolic support blends due to its ability to move stagnant digestive energy.

When decocted, Immature Bitter Orange Slice yields a strong, bitter citrus infusion with aromatic undertones. It is typically used in moderate quantities due to its dispersing strength.

Each batch of Immature Bitter Orange Slice (Citrus aurantium) is carefully harvested and dried at the correct stage of maturity to ensure its traditional energetic profile. Whether used to clear stagnation, promote digestion, or support qi movement, Zhi Shi offers a reliable and potent method for restoring dynamic balance to the digestive system.