Professional-grade care, now in your daily at-home skincare routine. Quadthera is the only 4-level alternating ultrasound device that uses the same frequency and material found in skin clinics. Scientifically advanced, patented technology Quadthera's exclusive Mode Q. We discovered the optimal sequence of 1-19-3-10MHz frequencies that effectively stimulate the skin, and developed it into a patented technology. Tailored skincare with 5 modes and adjustable power levels. With 5 function-specific modes and adjustable energy levels, you can enjoy delicate skincare tailored to your needs. Visible transformation, scientifically backed. Clinically tested to support visible improvements in radiance, soothing, firmness, and pore appearance. These are the key factors that help skin look healthier.