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

https://wiki-cafe.win/index.php/Ultherapy_Depth_Settings_%E2%80%93_What_Do_1.5_mm,_3.0_mm,_4.5_mm_Mean%3F

Ultherapy targets the deeper 4.5 mm SMAS layer using focused ultrasound for gradual tightening, with results peaking around 3 to 6 months. RF heats skin to 40-45°C for surface collagen boost but doesn’t reach SMAS