There are several factors that go into determining the cost of Botox treatment, including the following: - The Size of the Area that Requires Treatment — Among the various factors that determine the cost of Botox treatment is the size of the injection area. Larger injection areas require more units of Botox, increasing the overall cost of the treatment. Larger areas of the face include the forehead; this area will cost more than the corners of the eyes when getting Botox treatment. - The Dosage Needed to Treat a Particular Area — The severity of the visible signs of aging, such as wrinkles, fine lines and furrows, will determine how much Botox costs. If the area has more severe lines, the aesthetician will have to administer a greater number of Botox units. - Where the Clinic is Located — The location where you want to get the treatment also influences the average cost of Botox treatment. Bigger cities that offer high-quality Botox treatments typically charge more. - The Credibility of Your Service Provider — The cost of Botox treatment largely depends on the quality and experience of the professional administering the injections. Visiting a reputable clinic may cost more than visiting a new, inexperienced practice. Be aware, however, that discounted rates do not guarantee good results, and extra care should be taken when vetting these potential practices.