Frown lines, also known as glabellar lines, are vertical wrinkles that form between the eyebrows. They are caused by repeated muscle contractions when frowning or squinting. While frown lines are a natural part of the aging process, there are steps you can take to minimize their appearance.
There are a number of benefits to avoiding frown lines. First, they can make you look older than you actually are. Second, they can give you a tired or angry expression. Third, they can make it difficult to apply makeup evenly.
