Yinjiao DU-28 Acupuncture Point

Yinjiao DU-28

Chinese: 龈交

Pinyin: Yín Jiāo


Between the upper lip and the upper labial gingiva, in the frenulum of the upper lip. 

How to locate

Hold the upper lip in a raised position in order to reveal the frenulum and the upper gum. Locate Yinjiao DU-28 on the midline, at the junction of the frenulum with the upper gum. 

Main actions

  1. Clears Heat and benefits the gums
  2. Benefits the nose and eyes


0.1–0.2 cun obliquely in a superior direction or prick to bleed. Do not puncture the frenulum.

Commentary for Yinjiao DU-28

Yinjiao DU-28 is most used to clear Heat, especially from the eyes, gums and mouth. Therefore, it can treat symptoms such as swelling, bleeding and painful gums, blurred vision, pain and itchiness of eyes or canthus. 

It also benefits nose and face and ease related disorders.