I may be the only physician on this site who has answered you in this way but as many cases of Ultherapy I have done since it first was FDA cleared, and many patients have received very good skin tightening, the photographs you have shown seem to indicate you do not have sagging inelastic skin, but the platysmal muscle bands have been forwardly displaced. I have not been successful tightening these bands with Ultherapy. Platysma bands are often improved through a surgical procedure, platysmaplasty. But this is a neck lift with downtime and some risks. Botox injections can in many patients make the muscle bands retract somewhat but never do they vanish. It has to be repeated every 4 months for most patients. Microneedling with radiofrequency can help some patients with hanging muscle bands. Thermitight is a non surgical, but minimally invasive procedure that does help some patients tighten their muscle bands but there is swelling and downtime often with bruising. You should consult, in person, with a board-certified dermatologist or plastic surgeon to examine your skin and determine what is the exact cause of your neck sagging. I appreciate Ultherapy for what it does but I don't think you're a candidate for it.The information provided in Dr. Shelton's answer is for educational purposes only and is not intended to constitute medical advice. The information provided should not be relied upon as a substitute for consultations with a qualified health professional who may be familiar with your individual medical needs.