Expression lines and wrinkles are caused by smiling, laughing, frowning and squinting. Expression lines are those lines in the corners of the eyes, on the forehead and in the middle of the brow. Botox can relieve these lines and wrinkles by relaxing the underlying muscles.

Filler are an injectable substance used primarily to smooth out wrinkles. Other uses include the ability to fill in depressed areas such as the corners of the mouth, smile lines and sunken eyes.