Ultherapy targets the deep 4.5 mm SMAS layer using ultrasound energy,...

https://gregorywads092.lowescouponn.com/can-rf-tighten-skin-but-not-lift-what-does-that-mean

Ultherapy targets the deep 4.5 mm SMAS layer using ultrasound energy, stimulating collagen over 3 to 6 months for gradual lifting. Compared to RF, which heats skin to 40-45°C mainly for surface tightening, Ultherapy offers deeper lift