Biostimulator in the midface: indications and precautions

The midface is where the youthfulness of the face is usually read: full cheeks, a smooth transition between eye and cheek, a discreet nasolabial fold. When it loses support, the face looks tired and "droopy," even if the patient cannot name what changed. The collagen biostimulator is one of the options for improving support in this area. This page discusses, at a review level, the indication, precautions, risks and limits. Product, volume and technique follow the package insert and training, at the discretion of the qualified professional, according to the rules of their professional council in Brazil.

What is the midface and what does it lose?

The midface runs from the base of the nose to the line of the eyes, and includes the zygomatic area, the cheekbone, the cheek and the upper lip. Over time, the bone of the area (maxilla and zygoma) is resorbed, the fat compartments descend and deflate, and the ligaments loosen. The skin, in turn, loses elasticity. The result is less cheek projection, a more evident tear trough, a deeper fold and a heavier lower third. See midface aging and facial bone resorption with age.

What is the role of the biostimulator?

In selected cases, the biostimulator contributes a gradual collagen stimulus and support to the soft tissues, as a complement to strategies that restore projection, such as cheekbone filler and zygomatic filler. The main difference is in the timing and type of effect: filler delivers more immediate volume and projection; the biostimulator works over weeks and months, focused on firmness and support.

The detailed comparison is in biostimulators: overview.

Structures of concern

The area is supplied by the facial artery, the transverse facial artery and infraorbital branches, and the infraorbital nerve exits through the foramen just below the orbit. The zygomatic and orbicular retaining ligaments delimit compartments and influence how the tissue settles. The proximity to the medial canthus and to the nasolabial fold makes the area sensitive to vascular events.

When to consider and when to avoid

• Consider: mild to moderate loss of support, skin of reasonable quality, a patient who accepts a gradual response, planning that includes other areas.
• Avoid or postpone: active infection, active autoimmune disease, chronic malar edema, significant bags without a diagnosis, keloid, pregnancy and breastfeeding.
• Think of another approach: an obvious bone deficiency (structural projection), marked laxity with excess skin, expectation of an immediate effect.

Malar bags and edema deserve investigation before any product is placed in the area; see malar bags: assessment and persistent malar edema.

How does the exam help decide?

Observe the patient seated, smiling and at rest, from the front and in three-quarter view. Look for the shadow between the eyelid and the cheek, the position of the malar fat, the projection of the zygomatic area and the depth of the fold. Lay the patient down and observe what changes. Palpate bones, ligaments and skin thickness. Compare with old photos, when available, to understand what actually changed. The organization of the exam by thirds is in facial assessment by thirds, and photo documentation in standardized clinical photography.

Midface and tear trough: reading them together

Many patients seek treatment for "dark circles" when the problem is in the cheek. The shadow under the eye depends on the transition between the lower eyelid and the cheek, and when the cheek loses support that transition becomes a step. In that case, treating the tear trough directly may be inappropriate, and a midface support strategy may contribute more. The opposite also happens: dark circles from pigmentation, visible vessels or a fat bag do not respond to support. The differential diagnosis is in under-eye circles: types and assessment.

This combined reading changes the planning. Instead of asking "what do I inject into the tear trough?", ask "what is causing this shadow?". The answer may lie in the orbit, in the cheek, in the skin or in a combination. This is why assessment by thirds and by layers helps avoid procedures that do not solve the concern.

Post-procedure care

Instruct the patient in writing. In general: avoid intense pressure on the area, heavy physical activity in the first days and exposure to extreme heat, watch for warning signs and attend the follow-up. Massage instructions, when they exist, follow the product and the package insert. Teach the patient to recognize signs that should not wait: disproportionate pain, color change, coldness, visual changes. A template of instructions is in post-biostimulator instructions.

Combining with other areas

The midface influences the tear trough, the fold and the lower contour. That is why planning is usually done together, with a defined order and interval. In general, support is restored before refining details, and the result of one stage is assessed before the next. See order of procedures in the same session. For neighboring areas, biostimulator for the tear trough, biostimulator for the nasolabial fold and biostimulator for the jawline.

Where does Harmy come in?