The depressor anguli oris muscle, also known as the DAO muscle, plays a significant role in facial expressions, particularly those associated with negative emotions such as sadness, frustration, or disappointment. This muscle is responsible for pulling down the corners of the mouth, creating a downward expression.Emotions are often stored in the body, including facial muscles, due to stress, tension, or past experiences. Over time, these emotions can become trapped, leading to physical manifesta

Most people focus only on lifting exercises… but did you know relaxation is just as important? The “saggy muscle” (depressor anguli oris) pulls the lower face down. If you never release it, your face keeps looking heavy no matter how much lifting you do. | Koko Face Yoga

When injecting the depressor anguli oris (DAO), depth isn’t just important — it’s protective. The depressor labii inferioris muscle lies beneath the DAO, attaching to the bone. If your injection is too deep and low, you risk hitting the wrong muscle — a common cause of lower lip ptosis. ❌ ✅ The safer, more effective approach? Injecting more superiorly and superficially, keeping your toxin in the correct plane and away from the DLI. Understanding the anatomical layering here helps you avoid compl

Massaging the Triangularis (Depressor Anguli Oris)