Horizontal brow lines (also known as ‘Horizontal Forehead Lines’ or ‘Surprise Lines’) are the transverse, long lines that run across the forehead. These may result from normal animation or expression. Also they appear when raising the eye brows in surprise or during times of stress.
Horizontal brow lines deepen with age and eventually become apparent even when the face is relaxed. The muscle involved here is only one, the Frontalis muscle and it is the sole elevator of the eyebrow. Using Dermal Fillers, can relax the muscle sufficiently to reduce and usually eliminate these age defining wrinkles.