Frons
The frown is located between the eyebrows. A frown line can be caused by repeated contraction of the frown muscle. This can sometimes give an angry or stern appearance. With a treatment of a wrinkle relaxant (botulinum toxin), the frown muscle can be relaxed so that the frowning is temporarily not so strong. The lines become softer and the appearance is also more relaxed and friendly. The frown is often treated in combination with the forehead.