Facial contouring with fillers is a non-surgical cosmetic procedure that uses gel-like dermal fillers injected under the skin to fill hollow areas, address volume deficiencies, create a V-line chin, and reshape facial areas such as the temples, forehead, and lips.

Sunken cheeks often result from reduced subcutaneous fat tissue, insufficient supportive structures, or aging, which makes the face appear gaunt and older. Filler injections are a suitable option in this case because the dermal fillers help restore lost volume, create natural fullness, and improve the facial contours.

A doctor injecting fillers to contour a woman's face. *Illustration: Tam Anh General Hospital*

When injected into the correct tissue layer and in the appropriate amount, fillers not only create a more harmonious and youthful appearance but also support adjacent tissues, limiting the progression of deep depressions. Dermal fillers containing hyaluronic acid also stimulate collagen production, which helps make the skin surface smoother over time.

However, the risk of sagging can occur if low-quality fillers are used, injected into the wrong tissue layer, or in excessive volume, especially when some facilities advise injecting large amounts at once for "quick shaping." Excess dermal filler can increase pressure on facial tissues, leading to a loss of natural supportive structure. Therefore, in addition to choosing standard-compliant fillers, a skilled doctor and appropriate dosage are crucial factors to ensure safety and prevent facial sagging.

To minimize the risk of sagging after filler injections, you should choose a reputable facility and a doctor with expertise in facial anatomy to ensure proper injection technique and indication. The fillers used must be products of clear origin, licensed, and suitable for each injection site to ensure stability and reduce the risk of inflammatory reactions. Injecting an appropriate dosage avoids overloading tissues with too much filler, which can eventually lead to a heavy and lax feeling.

After the injection, you still need to follow your doctor's aftercare instructions, limiting massage, strong pressure, or steaming during the first few days to allow the fillers to stabilize and optimize the aesthetic results.

Dr. CKI Be Thu Thuy

Aesthetics Department

Tam Anh General Hospital Ha Noi