Answer:

HIFU (high-intensity focused ultrasound) is a technology that uses high-intensity focused ultrasound waves. It delivers energy through the skin's surface, precisely targeting deep layers, especially the SMAS layer – the foundational support for the face. At appropriate energy levels, these micro-injury points stimulate collagen restructuring over time, improving mild to moderate skin laxity.

Many believe that anti-aging efforts should begin as early as possible. However, in aesthetic medicine, prevention does not equate to early intervention with high-energy treatments. Young skin possesses excellent self-healing and regeneration capabilities when properly protected. Applying deep energy when the skin's structure is not yet weakened does not necessarily prolong youthfulness; it can sometimes disrupt the natural biological balance of skin tissue.

Biologically, collagen reduction begins after the age of 25 and continues over time. Below 30, this decline is not pronounced because most young individuals have good skin elasticity, firm supporting tissues, and no noticeable sagging in the lower cheeks or jawline.

Common concerns among young people, such as dull skin, fine lines during expression, or a tired appearance, are often linked to a lack of sleep, stress, dehydration, prolonged sun exposure, or inappropriate skincare, rather than actual structural aging. Therefore, deep-acting technological interventions like HIFU require personalized assessment and should not be applied based on trends. For individuals with thin facial fat layers or gaunt faces, choosing an inappropriate depth or energy level can lead to soft tissue indentation or affect the subcutaneous fat, making the face appear more hollow over time.

However, HIFU technology may be considered in special cases, following a thorough examination by a doctor. These include individuals exhibiting clear signs of premature aging due to rapid weight loss, prolonged stress, chronic sleep deprivation, smoking, or frequent unprotected sun exposure. Some cases involve facial structures prone to early soft tissue sagging, such as heavy lower cheeks or an indistinct jawline, even at a young age. Yet, even within this group, HIFU is typically indicated only at a mild level, with personalized parameters, and is not a routine treatment like for middle-aged individuals.

HIFU may be considered for young people after thorough doctor examination. _Illustration: Tam Anh General Hospital_

If you are under 30, prioritize strict and comprehensive sun protection, as UV rays are a primary cause of premature aging and collagen degradation. Implement appropriate skincare, focusing on moisturizing, restoring the skin's protective barrier, and using scientifically proven active ingredients such as appropriate concentrations of retinoids, vitamin C, and peptides. Adequate sleep, stress management, a balanced diet, and avoiding excessive smoking and alcohol are the safest and most sustainable rejuvenation therapies for young skin. For mild skin improvements, you can consider less invasive methods that focus on surface skin quality rather than deep structural interventions.

Doctor Duong Quoc Trung, CKI

Department of Aesthetics

Tam Anh General Hospital Hanoi