Kye Yong Song

Nov 12, 2024 | onlinelibrary.wiley.com | Sang Lee |Hye-Jin Ahn |Dong Hye Suh |Kye Yong Song

To the Editor, Over time, the breakdown of collagen and elastin in the dermis leads to a decrease in elasticity and volume. Clinically, this can contribute to wrinkles, rough texture, and laxity. The demand for noninvasive skin tightening continues to grow [1, 2]. In our study, histological analysis confirmed an increase in collagen and elastic fiber especially in the mid dermis after high-intensity, parallel ultrasound (HIPS) tightening (Sofwave, SofWave Medical Ltd., Israel).