Wrinkle Wisdom: Ace Grandma's Pop Quiz!Which type of ultrasound energy is typically used in jawline tightening procedures?72%Next Correct Incorrect High-frequency ultrasound is commonly used to stimulate collagen and tighten tissues. Which type of ultrasound energy is typically used in jawline tightening procedures? Infrared ultrasound Microwave ultrasound Low-frequency ultrasound High-frequency ultrasound 72%
