Definition of a RBF:

A resting bitch face is a term for a normal relaxed face that’s unintentionally perceived as angry or similar negative emotions.

1. downturned mouth corners
2. Low or flat eyebrows
3. hooded or narrow eyes
4. corrugator brown tension
5. negative canthal tilt
6. Depressor muscle dominance

Downturned mouth corners:

(The depressor anguli oris) is what pulls the corners of your mouth. It pulls the mouth downward, producing a frown.

Low or flat brows:

Studies show that low and/or flat eyebrows are associated with the perception of tiredness, most affected by the length of the pretarsal lid height.

hooded or narrow eyes:

Also known as “Dermatochalasis,” excess upper eyelid skin reduces how open the eyes look. This becomes more prevalent with age. Gives off a tired look.

corrugator brow tension:

Brow tension takes place when the muscle between your eyebrows pulls both sides together as well as downward, giving off a frown.

Negative canthal tilt:

Canthal tilt refers to the angle between the medial and lateral canthus. When the lateral canthus is low set, it produces a negative canthal tilt. It’s perceived as a serious or tired/low energy expression.

Depressor muscle dominance:

Depressor muscle dominance is when the downward pulling muscles are stronger than the upward pulling muscles. Largely affects the mouth area.