Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer, stimulating...

https://yonderstack.com/s/eFlRIj0aE5VTyYiLcrVpl

Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer, stimulating collagen deep beneath the skin. Results build gradually, peaking around 3 to 6 months. Compared to RF, which heats tissue to 40–45°C, Ultherapy reaches deeper layers