aging-volume-loss
What Are Dermal Fillers? Types, Results, and What to Expect
Last reviewed: May 2026 · Haute MD Editorial Team
Dermal fillers are injectable substances that restore volume, smooth lines, and contour facial features. The most common type — hyaluronic acid (HA) fillers (Juvederm, Restylane, Versa) — are naturally occurring substances that attract and hold water, producing immediate volume that is reversible with hyaluronidase enzyme if needed. Collagen-stimulating fillers (Sculptra/poly-L-lactic acid; Radiesse/calcium hydroxylapatite) work gradually by triggering the body's own collagen production — producing results that develop over months and last longer. The right filler depends on the area being treated, the degree of volume loss, the patient's anatomy, and the treatment goals.
Where fillers are used and which types work best
Under-eye hollows (tear trough) — thin HA fillers (Restylane-L, Belotero Balance) placed carefully at the orbital rim — one of the most technically demanding injection sites. Cheeks and midface — thicker HA fillers or Sculptra for restoring the youthful apple cheek fullness. Nasolabial folds — medium HA fillers. Lips — soft HA fillers (Juvederm Volbella, Restylane Kysse) — the most popular cosmetic filler treatment. Jawline and chin — firmer HA fillers for structural definition. Temples — HA fillers or Sculptra for hollowing correction.
How long do fillers last
HA fillers last 6-18 months depending on the product, injection site, and the individual patient's metabolism. Thicker, more cross-linked fillers in structural areas (cheeks) last longer than thinner fillers in dynamic areas (lips). Sculptra results develop over 3-6 months and last 2-3 years. Radiesse lasts approximately 12-18 months. All fillers gradually break down — maintenance treatments are required to sustain results.
Risks and complications
Common risks — bruising, swelling, tenderness at injection sites — typically resolving within days to a week. Rare but serious — vascular occlusion, inadvertent injection into or compression of a blood vessel, which can cause tissue necrosis or, in the most severe cases, vision loss if the ophthalmic artery is affected. Vascular occlusion requires immediate treatment with hyaluronidase. This risk underscores the importance of choosing an experienced, medically trained injector with hyaluronidase on hand.
Frequently Asked Questions
Does getting fillers hurt?
Most fillers contain lidocaine which reduces discomfort during injection. Topical numbing cream applied 20-30 minutes before treatment further reduces pain. Most patients describe injections as mildly uncomfortable. Lip injections tend to be more uncomfortable than cheek or tear trough injections.
How do I know if I'm a good candidate for fillers?
Good candidates for fillers are in good general health; have realistic expectations about gradual, natural-looking improvement (not dramatic transformation); are not pregnant; are not taking blood thinners (which increase bruising risk); and have specific concerns that fillers address — volume loss, hollows, lip thinning, or line softening.
Can fillers be dissolved if I don't like the result?
Hyaluronic acid fillers can be dissolved with hyaluronidase enzyme — results reverse within 24-48 hours. This is a significant safety advantage of HA fillers. Collagen-stimulating fillers (Sculptra, Radiesse) cannot be easily dissolved — this makes precision placement and conservative treatment even more important with these products.
What is overfilled face and how do I avoid it?
Overfilled face results from cumulative excess filler producing unnatural volume distribution — chipmunk cheeks, duck lips, or loss of natural facial angles. Choosing a conservative, experienced injector; reviewing before-and-after portfolios with a critical eye for natural results; and resisting the urge to touch up sooner than needed all reduce this risk.
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