Ultherapy targets the deeper 4.5 mm SMAS layer using ultrasound waves, lifting...

https://highstylife.com/thermage-vs-10therma-are-they-both-monopolar-rf/

Ultherapy targets the deeper 4.5 mm SMAS layer using ultrasound waves, lifting and tightening over 3 to 6 months, ideal for natural results. RF heats skin to about 40-45°C to boost collagen, great for mild tightening with quicker recovery