Ultherapy uses ultrasound energy targeting the 4.5 mm SMAS layer, offering a...

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Ultherapy uses ultrasound energy targeting the 4.5 mm SMAS layer, offering a deeper lift compared to standard HIFU, which usually focuses on 1.5 to 3 mm depths. RF heats skin to around 40-45°C for collagen tightening but doesn’t reach the SMAS