Inset lip lines can be caused from years of sun damage, repetitive facial expressions, and inevitable aging. This condition can take time and patience with treatments to help alleviate and better, that is why it is important to see a medical professional to designate which treatment is best for this condition. Without continual care, lip lines will come back and worsen. Also, aging is inevitable and no treatment is a permanent solution, rather a guideline for keeping lip lines at bay or softening. See a trusted provider for a complete, individualized treatment plan, just for you!