Vertical lines between the brows are caused by contraction of 3 muscles - paired corrugator supercilii muscles which cause the vertical lines and the procerus muscle causing horizontal lines

Also known as smile lines. These are wrinkles created by the orbital part of the orbicularis oculi muscle

Horizontal skin creases caused by contraction of the large occipitofrontalis muscle

Also known as peri-oral lines, sometimes referred to as smoker’s lines. These are wrinkles caused by the contraction of the orbicularis oris muscle.

Lines from the corners of the mouth to the chin. These are from a number different factors including muscles that make you frown (particularly the depressor anguli oris)

As the name suggests gummy smile occurs when the gums are excessively on show during smiling. This is due to the action of a long named muscle called the levator labii superioris alaeque nasi

Vertical bands that may be present at rest and accentuates with tightening of the underlying platysma muscle