HIFU (High Intensity Focused Ultrasound) 是一種高效聚焦超聲波技術。它透過高聚焦式加熱皮膚，將皮膚組織提升到60°C至70°C，並將熱能鎖於真皮層發揮作用，避免影響其他皮膚組織。這種熱能深入真皮層肌腱膜，刺激皮膚膠原蛋白和彈性蛋白的生成，快速收緊皮膚內層SMAS(淺筋膜系統)。

HIFU機不僅能塑造V臉效果， 讓臉部輪廓更加清晰，還可用於身體部位，有效減去皮下脂肪。對於容易積聚脂肪的腹部、手臂和大腿等部位，HIFU技術能夠溶解深層脂肪，讓你擁有更纖細的體型。

o 鬆弛肌膚：適合皮膚鬆弛的使用者。
o 輪廓線條不明顯：適合希望改善面部輪廓線條的使用者。
o 上眼臉下垂及無彈性肌膚：適合上眼臉下垂及缺乏彈性的皮膚狀況。

完成HIFU療程後，可能會出現輕微疼痛感、紅腫及皮膚乾燥的情況。這是因為HIFU過程中產生的熱能會蒸發皮膚水份，因此需要做好保濕工作。另外，療程後應避免陽光直射， 使用SPF30或以上的防曬產品，並避免高熱運動如桑拿。

家用HIFU機與美容院HIFU機在達到皮膚層面上大致相同，都能作用於表皮層和真皮層。部分高端家用機器甚至可達筋膜層(SMAS)。

在深度和溫度方面，不同款式的HIFU機也有所差異。一般而言，家用HIFU機的深度和溫度略低於美容院機型，但仍能達到緊緻肌膚的效果。

在使用次數和效果維持時間上，家用HIFU機也有一定優勢。由於方便隨時使用，使用者可以根據自身需求靈活調整使用頻率，持續維護肌膚狀態。效果通常可維持1-2年。

HIFU (High Intensity Focused Ultrasound) is an efficient focused ultrasound technology. It heats the skin through high-focused heating, raising skin tissues to 60°C to 70°C, locking the heat energy in the dermis to avoid affecting other skin tissues. This heat energy penetrates deep into the dermis fascia, stimulating the generation of skin collagen and elastin proteins, rapidly tightening the inner layers of the skin known as SMAS (Superficial Musculoaponeurotic System).

HIFU machines not only shape a V-shaped face, enhancing facial contours, they can also be used on body areas to effectively reduce subcutaneous fat. For areas prone to fat accumulation like the abdomen, arms, and thighs, HIFU technology can dissolve deep-seated fat, leading to a more slender physique.

o Sagging skin: Suitable for users with loose skin.
o Indistinct facial contours: Suitable for users looking to improve facial contour lines.
o Drooping upper eyelids and lack of skin elasticity: Suitable for skin conditions with drooping upper eyelids and diminished elasticity.

After completing a HIFU treatment, individuals may experience slight pain, redness, and dry skin. This is due to the heat generated during the HIFU process, which can evaporate skin moisture, necessitating proper moisturization. Additionally, post-treatment, direct sunlight exposure should be avoided, SPF30 or higher sunscreen products should be used, and activities like saunas should be avoided.

Home-use HIFU machines and salon HIFU machines generally target the same skin layers, acting on the epidermis and dermis. Some high-end home machines can even reach the fascia layer (SMAS).

In terms of depth and temperature, different types of HIFU machines vary. Typically, the depth and temperature of home-use HIFU machines are slightly lower than those of salon models, but they can still achieve skin tightening effects.

Regarding usage frequency and duration of effects, home-use HIFU machines also offer certain advantages. Due to their convenience for anytime use, users can flexibly adjust usage frequency based on their needs, maintaining skin condition continuously. The effects typically last for 1-2 years.