Generally, local anesthesia is not required. The number of injections required depends on each patient's needs and goals; it is estimated that 12 to 20 small injections per visit are sufficient for most patients, performed in 2-3 sessions, to achieve optimal results. Each session is performed, on average, one month apart. Patients with advanced cases of double chin may require up to 50 injections per session with appointments as often as every two weeks. Sessions in these cases can be as many as 6.
The result of the treatment is long-lasting, as long as you maintain a healthy lifestyle and do not gain weight in the treated area.