Ultrasound device

Quadthera

Aesthetic technology brought into home care
An ultrasound beauty device with four cross-alternating frequencies, including 1 MHz

Aesthetic technology brought into home care
An ultrasound beauty device with four cross-alternating frequencies,
including 1 MHz

Point 1

The world’s first ultrasound with four alternating frequencies

The world’s first ultrasound
with four alternating frequencies

Point 2

Skin cell-stimulating massage effect

Point 3

Proven effective through human testing

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Premium at-home
beauty device

Premium at-home
beauty device

An ultrasound device powered by the world’s first patented technology.
Four alternating ultrasound frequencies enhance the absorption of
active cosmetic ingredients while massaging skin cells,
improving skin health and elasticity.


An ultrasound device powered by the world’s first patented technology.
Four alternating ultrasound frequencies enhance the absorption of active cosmetic ingredients while massaging skin cells, improving skin health and elasticity.


Blue 3D Abstract

World’s first 4-level alternating ultrasound through single sonotrode

World’s first 4-level alternating ultrasound through single sonotrode

Four-frequency alternating ultrasound massages and revitalizes aged skin cells
from the outermost stratum corneum to the deepest muscle layer.
Through ultrasound vibration energy, heat shock proteins are activated,
leading to skin protein regeneration and enhanced skin health.

Four-frequency alternating ultrasound massages and revitalizes aged skin cells from the outermost stratum corneum to the deepest muscle layer.
Through ultrasound vibration energy, heat shock proteins are activated, leading to skin protein regeneration and enhanced skin health.

Micro-cell bubble massage

The lower the ultrasound frequency, the stronger the cavitation effect, which temporarily opens the lipid layers
between keratinocytes to aid cosmetic absorption, while also enabling massage of the skin’s deepest layers.

The lower the ultrasound frequency, the stronger the cavitation effect, which temporarily opens the lipid layers between keratinocytes to aid cosmetic absorption, while also enabling massage of the skin’s deepest layers.

Micro-cell wave massage

With 10 and 17 MHz ultrasound stimulation, skin cells vibrate, heat shock protein production is promoted,
and damaged skin proteins are regenerated.

With 10 and 17 MHz ultrasound stimulation, skin cells vibrate, heat shock protein production is promoted, and damaged skin proteins are regenerated.

All-in-one skin remodeling
with Quadthera

All-in-one skin remodeling
with Quadthera

Cross ultrasound massages skin cells to improve the skin from the inside out,
with results proven clinically.
From deep hydration to density, elasticity, wrinkles, pores, and tightening,
complete care for your skin inside and out.

Cross ultrasound massages skin cells to improve the skin from the inside out,
with results proven clinically.
From deep hydration to density, elasticity, wrinkles, pores, and tightening,
complete care for your skin inside and out.

Skin Absorption

Skin Absorption

Improved by 181%

Improved by 181%

Blue 3D Abstract

Before

Mobile View

After

P&K Skin Clinical Research Center Co., Ltd., adult women aged 30–59, April 1–8, 2024, comparison of gel-only use versus gel + device use in mode 1. Results may vary depending on skin condition and usage environment. Absorption rate based on 100% gel-only use.

Deep wrinkle ¹

Improved by 128.3%

Blue 3D Abstract
Blue 3D Abstract

Before

Mobile View
Mobile View

After

피부 깊은 주름 개선 128.3%

Improved by 127.4%

Pore size ²

Blue 3D Abstract

Before

Mobile View

After

모공 면적 개선 127.4%

Improved by 121.7%

3D volumetric tightening (cheeks) ³

Blue 3D Abstract

Before

Mobile View
Mobile View

After

3D 입체 타이트닝(볼) 개선 121.7%

Skin density ⁴

Improved by 115.8 %

Blue 3D Abstract
Blue 3D Abstract

Before

Mobile View
Mobile View

After

피부 치밀도 개선 115.8%

  • Deep wrinkle ¹

    Improved by 128.3%

    Blue 3D Abstract

    Before

    Mobile View

    After

  • Pore size ²

    Improved by 127.4%

    Blue 3D Abstract

    Before

    Mobile View

    After

  • 3D volumetric tightening (cheeks) ³

    Improved by 121.7%

    Blue 3D Abstract

    Before

    Mobile View

    After

  • Skin density ⁴

    Improved by 115.8 %

    Blue 3D Abstract

    Before

    Mobile View

    After

  • Deep wrinkle ¹

    Improved by 128.3%

    Blue 3D Abstract

    Before

    Mobile View

    After

  • Pore size ²

    Improved by 127.4%

    Blue 3D Abstract

    Before

    Mobile View

    After

  • 3D volumetric tightening (cheeks) ³

    Improved by 121.7%

    Blue 3D Abstract

    Before

    Mobile View

    After

  • Skin density ⁴

    Improved by 115.8 %

    Blue 3D Abstract

    Before

    Mobile View

    After

Skin barrier ⁵

Skin barrier ⁵

Improved by 156.2%

Improved by 156.2%

15.6 g/m²h

6.8 g/m²h

Skin soothing ⁶

Skin soothing ⁶

Improved by 109.7%

Improved by 109.7%

13.7 a

12.4 a

Deep hydration ⁷

Deep hydration ⁷

Improved by 108.3%

Improved by 108.3%

38.7 A. U

41.9 A. U

Skin firmness recovery ⁸

Skin firmness recovery ⁸

Improved by 107.4%

Improved by 107.4%

0.594 CoR

0.638 CoR

Skin brightening ⁹

Skin brightening ⁹

Improved by 104.1%

Improved by 104.1%

69.2 L

72.1 L

1–4), 6), 8–9) P&K Skin Clinical Research Center Co., Ltd., adult women aged 30–59, March 14–April 12, 2024, mode 4, comparison of gel-only use versus gel + device use, baseline set at 100% before use.5) P&K Skin Clinical Research Center Co., Ltd., adult women aged 30–59, March 14–April 12, 2024, mode 3, comparison of gel-only use versus gel + device use, baseline set at 100% before use. 7) P&K Skin Clinical Research Center Co., Ltd., adult women aged 30–59, March 14–April 12, 2024, mode 4, comparison of gel-only use versus gel + device use, measured at 0.5 mm skin depth.