Ultherapy targets the deep 4.5 mm SMAS layer using focused ultrasound for...

https://super-wiki.win/index.php/Thermage_vs_10THERMA_%E2%80%93_Are_They_Both_Monopolar_RF%3F

Ultherapy targets the deep 4.5 mm SMAS layer using focused ultrasound for gradual lifting over 3 to 6 months. RF heats skin to 40-45°C, boosting collagen closer to the surface with quicker results but less depth