非侵襲的治療法を用いた肌質改善

Strategies for Skin-Quality Improvement with Minimally Invasive Treatment

はじめに

　肌質改善治療の目標は，滑らかで弾力がありながら十分に保水された肌質を得ることである。このためには，外的因子（紫外線暴露や汚染物質暴露など）や内的因子（加齢など）によって構造異常や機能低下が生じてしまった肌に対し，表皮・真皮の過剰堆積物を取り除き，皮膚を構成する細胞や細胞外基質の数（量）および形態を整えることが必要となる。

　本稿では，肌質改善の治療法として，ヒアルロン酸製剤（ジュビダームビスタ ⓇボライトXC，Allergan社）を使用した注入療法と，各ターゲットに合わせた治療機器〔ピコ秒アレキサンドライトレーザー；PICOSURE Ⓡpro（CYNOSURE社），マイクロニードルRF；POTENZA Ⓡ（Jeisys社），同期平行型超音波；Sofwave TM（Sofwave Medical社）〕の選択およびそれらを用いた実際の治療法について述べる。

　The aim of skin-quality improvement treatment is to achieve smooth, elastic, and well-hydrated skin. This requires a multifaceted approach tailored to the individualʼs skin condition, including replenishing moisture, removing excess melanin, and enhancing collagen production. Regarding injection treatments, Juvéderm Vista Ⓡ Volite TM XC is an injectable filler that uniquely addresses skin-quality improvement by targeting both the structure and the function of the skin. For energy-based device therapies, it is essential to disrupt degenerated structures and reactivate cells and tissues. Different layers of the skin require specific targeting substances. Our facility uses the Picosecond Alexandrite laser (Picosure ⓇPro) for epidermal approaches, a micro-needle radiofrequency (RF) system (Potenza Ⓡ) for dermal and basement membrane approaches, and synchronous ultrasound parallel beam technology (Sofwave Ⓡ) for dermal approaches. These versatile devices allow for both single-device treatments and combination treatments that provide synergistic effects. In terms of skin tightening, the Sofwave Ⓡ delivers thermal energy in a continuous and directional manner while minimizing pain levels. Our facility developed the Thermal Thread Technique TM, which forms thermal threads within the dermis with the use of the synchronous ultrasound parallel beam, resulting in overall skin improvement and tightening effects. In cases with multiple skin symptoms such as pigmented lesions with photodamage, fine lines, enlarged pores, and acne scars, simultaneous approaches to multiple targets in the epidermis and dermis are necessary. Our facility developed CynoGlow TM treatment, which combines the use of the Picosure ⓇPro laser and the Potenza Ⓡ RF system in three phases to achieve skin-quality improvement. In treatments that are designed to improve skin quality, it is desirable to reconstruct strategies on a case-by-case and treatment-by-treatment basis, as the factors involved may vary depending on the patientʼs case and skin condition.