Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer, which few...

https://riversexpertchat.rivetgarden.com/posts/what-treatment-is-best-for-neck-bands-and-laxity-in-singapore

Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer, which few treatments reach, offering a natural lift that improves over 3 to 6 months. RF heats skin to 40-45°C to boost collagen but doesn’t penetrate as deep