Dermal Fillers
A gel injected under the skin to replace volume that has been lost, or to add shape. Most are hyaluronic acid and last six months to two years. They do not treat movement lines, loose skin, or skin quality.
Key facts
Treats
Selected volume loss, folds or contour
Recovery
Swelling or bruising for about a week
Treatment plan
Repeat when appropriate as effects fade
Typical cost
About $600–1,200 per syringe
What is it?
They are injectable materials.
Fillers restore soft-tissue contour or soften wrinkles.
Products differ.
Composition, duration and reversibility vary.
They are not Botox.
Fillers add volume rather than relaxing muscles.
They carry vascular risk.
Unapproved products and needle-free devices should be avoided.
What it treats
Volume Loss
Restores fullness in cheeks and lips.
Deep Wrinkles
Fills deep folds.
Rolling Scars
Lifts soft dips.
Wrinkles and Fine Lines
Fine movement lines respond better to Botox.
Sagging Skin
Can't replace a lift.
Treatment areas
Dermal Fillers
Cheeks and lips; the product and treatment goal determine placement.
Dermal Fillers
Cheeks and lips; the product and treatment goal determine placement.
Skin tones
Lighter skin
Low risk
Bruises show clearly but fade in about a week.
Medium skin
Low risk
Bruising may leave brief darker marks.
Deeper skin
Low risk
Bruising can leave darker marks that take longer to fade.
How it works
Diagram explanation
Material is placed in selected tissue: The product and anatomical site guide injection. The filler supports volume: The material changes the contour of the treated area. The result depends on the product: Material, placement, and tissue structure affect the outcome and duration.
Schematic illustration. Technique and response vary. This explains a mechanism and does not specify treatment settings.
Types
Fillers are grouped by what they are made of. Hyaluronic acid fillers are the most common because they can be dissolved if needed. Others build collagen and last longer, but can't be reversed.
Hyaluronic acid
Adds volume and can be dissolved.
- Brands
- Juvéderm, Restylane, RHA
- Lasts
- 6–18 months
- Reversible
- Yes
Calcium hydroxylapatite
Adds volume and builds collagen.
- Brand
- Radiesse
- Lasts
- 12–18 months
- Reversible
- No
Poly-L-lactic acid
Builds collagen gradually over months.
- Brand
- Sculptra
- Lasts
- About 2 years
- Reversible
- No
PMMA
Permanent microspheres in collagen gel.
- Brand
- Bellafill
- Lasts
- Years
- Reversible
- No
Before your treatment
2–4 weeks before
Planning: Timing: Allow 2 weeks for swelling to settle.
The week before
Preparation: Medicines and alcohol: Ask about fish oil, vitamin E and ibuprofen; avoid alcohol for 24 hours.
3 to 5 days before: Bruising: Never stop a prescribed blood thinner on your own.
Day of treatment
Arrival & prep
You are assessed sitting upright, because faces look different lying down.
Treatment
The skin is cleaned.
Filler goes in in small amounts through a fine needle or a blunt cannula threaded from one entry point. The injector pauses to mold it and sits you up to check symmetry. It takes 15 to 45 minutes. Expect pressure and pinching, not sharp pain. Lips hurt most; a cannula hurts less than needle passes.
Before you leave
Pinpoint red marks, some swelling, maybe a bruise starting.
After your treatment
First 24 hours
First 4 days: Puffiness and tenderness build through the first day; ice in short spells helps.
Days 2–7
Day 5 to 14: Swelling drops, bruises turn yellow and fade, and lumps soften.
Weeks 2–4
Week 2: What you see now is what you paid for.
Time to results
Right away, final at 2 weeks
How long results last
6–24 months
Risks
When to contact your provider
Warning signs: Swelling and bruising are expected.
Warning signs: Pain that grows rather than settles, skin turning white or blotchy blue, or any vision change is not.
Warning signs: Call immediately, day or night.
Most of what happens after filler is swelling and bruising, and it settles on its own. The risk that matters is uncommon and serious, so know the signs beforehand.
Filler can enter or press on a blood vessel and cut off the blood supply to an area of skin — vascular occlusion. If the vessel connects to those supplying the eye, it can cause permanent loss of vision, rare but reported. Highest-risk areas are between the brows, the nose, the fold beside the nose, the forehead and under the eyes. Treatment is a large dose of hyaluronidase, the enzyme that dissolves hyaluronic acid, as soon as possible — results are far better within hours than within days. Ask before you book whether the clinic keeps hyaluronidase on site, and expect an injector to know the dose and their plan without looking it up.
A lump or firm area
Common in the first two weeks and usually just swelling. Still there at three to four weeks, it needs looking at — it may be gel needing massage or a small dose of dissolver.
A bluish tint under thin skin
The Tyndall effect, from gel too close to the surface, most often under the eyes. It does not fade on its own. Dissolving corrects it.
Swelling weeks or months later
Delayed nodules can appear long after the appointment, sometimes triggered by an infection, a dental procedure or a vaccination. Uncommon and usually treatable, but they need assessing.
Under-eye puffiness that lingers
Hyaluronic acid holds water, and under-eye filler can leave a permanent-looking puffiness. Dissolving treats it.
Asymmetry
Review at two weeks. Small differences are often correctable with a little more on one side.
A cold sore outbreak after lip filler
Antiviral treatment works best started early.
Cost
Typical cost
About $600–1,200 per syringe
Pricing
In the US, hyaluronic acid filler usually runs about $600 to $1,200 per syringe, with structural and longer-lasting products at the higher end.
Insurance
Insurance does not cover cosmetic filler.
Alternatives
Botulinum toxin
Different job. Relaxes the muscles that create movement lines. It adds no volume, and filler softens no frown lines, which is why the two are used together far more often than one is chosen over the other.
Collagen stimulators
Poly-L-lactic acid and similar products build volume gradually over three to six months instead of instantly, and the result often lasts around two years. The trade is patience and the fact that they cannot be dissolved if you dislike the outcome.
Fat transfer
Your own fat, moved from elsewhere, with the potential to last for years. It is a surgical procedure with anesthesia and real downtime, and how much of the fat survives varies a lot between people.
Thread lifts
Marketed as a lift without surgery. The effect is usually modest and short-lived for the cost, and the threads dissolve over months.
Facelift or neck lift
The only real answer to loose skin. It repositions tissue rather than adding volume. It is surgery, with the recovery, cost and permanence that means.
Lasers, peels and microneedling
For a different target. They improve skin surface, texture and pigment. They do not restore volume, and filler does not improve skin quality, so many people end up doing both over a year.
Hyaluronic acid serums
They hold water in the surface layers and make skin look temporarily plumper. They cannot reach the layer filler is placed in, and no serum restores lost fat or bone.
Daily sunscreen, SPF 30 or higher
Does not add volume, but it is the single strongest thing you can do for how your face ages, and it protects the skin quality that filler cannot fix.
Topical retinoid
Improves skin thickness, texture and fine lines over months. A companion to filler rather than a substitute, and worth having in place first.
Facial exercises, massage tools and gua sha
They move fluid and can reduce puffiness for a short while. There is no good evidence they restore lost volume or lift tissue.
Questions
How long does filler last?
Six to twelve months in the lips, often twelve to twenty-four in structural areas like cheeks, chin and jaw. Movement breaks it down faster, and some persists longer than expected without being visible.
Does it hurt?
Pressure and pinching more than sharp pain, and most fillers contain local anesthetic so it eases as it goes in. Lips are worst by a distance. Numbing cream is standard.
Can filler be removed if I do not like it?
Hyaluronic acid dissolves with an enzyme, usually within days. Calcium hydroxylapatite, poly-L-lactic acid and permanent fillers do not, a strong argument for starting with hyaluronic acid.
What is vascular occlusion, and how likely is it?
Filler blocking a blood vessel and cutting off the blood supply to skin, or rarely the eye. Uncommon, and it is why filler belongs with a trained medical injector who keeps hyaluronidase on site. Warning signs are severe or increasing pain, skin turning white then blotchy and dusky, and any vision change. Treated urgently, the sooner the better.
Why does filler sometimes look obvious?
Almost always how much was used and where, not the product. Volume added year after year without reassessment, or gel too close to the surface, is what people recognize.
Will filler help my dark circles?
Only if the darkness is a shadow cast by a hollow. If it comes from pigment, or thin skin showing the vessels underneath, filler will not brighten it — and under-eye filler risks lasting puffiness. Ask what is causing yours.
Related
Wrinkles and Fine Lines
Botox
Tretinoin
Botox vs Dermal Fillers
Dermal Fillers vs Microneedling
Dermal Fillers vs Radiesse
Dermal Fillers vs RF Microneedling
Dermal Fillers vs Subcision
Nasolabial Folds vs Wrinkles and Fine Lines
Wrinkles and Fine Lines vs Skin Laxity
Acne Scarring
