1. Your individual needs are an extremely important factor in the cost. You may have several areas of the face that you would like to have treated, such as the “eleven” lines between your eyes and the wrinkles in your forehead. Patients in their late twenties may need very little Botox to achieve their desired look, while patients in their fifties may need much more to soften their lines. Additionally, the thickness and strength of people’s muscles vary from person to person, so people with thicker facial muscles may require more Botox to soften their wrinkles. Because individual needs vary so greatly and because the amount of Botox used on each patient is different, there cannot be a fixed price for treating an area of the face.