GV-26 Shuigou (also known as Renzhong) (人中) — Water Trough

On the face, on the midline, at the junction of the upper third and the lower two-thirds of the philtrum.

Seated, with the neck in extension, or in supine decubitus, locate the point at the upper third of the nasolabial groove.

Orbicularis oris muscle. Innervated by the buccal branch of the facial nerve and by the infraorbital nerve (trigeminal).

Oblique insertion directed superiorly, 0.3–0.5 cun.

Shui (水), water; Gou (溝), trough. The point is located in a place that resembles a water trough.