What is lip filler?
Lip filler is the injection of hyaluronic acid gel into the lips to add volume, define the border, correct asymmetry or improve the balance between the upper and lower lip.
Hyaluronic acid occurs naturally in skin and connective tissue. As an injectable it is cross-linked into a gel; products used in the lips are softer than those used along the jaw, because lips must move.
The result is immediate, temporary and reversible.
What are the realistic goals?
Lip treatment is more often about shape than about size. Goals that work:
| Goal | What it involves |
|---|---|
| Restoring lost volume | Lips thin with age; replacing a modest amount |
| Defining the border | A small amount along the vermilion border for a crisper edge |
| Balancing upper and lower | Correcting a proportion that looks top- or bottom-heavy |
| Improving symmetry | Addressing a side that is naturally smaller |
| Softening fine lines | Around the mouth, with very soft product placed superficially |
| Adding a defined shape | Support at the cupid's bow or the corners of the mouth |
Goals that do not work well: making a naturally thin lip dramatically full in one session, or pursuing a shape borrowed from someone whose mouth and face are built differently. Filler pushed past what the tissue can hold spreads outwards rather than forwards, and that is what produces the appearance most people say they want to avoid.
Who is not a good candidate?
- Anyone in pregnancy or breastfeeding.
- Active infection in or around the mouth, including a current cold sore.
- Previous reaction to hyaluronic acid or to lidocaine.
- People whose expectations cannot be met by the treatment — which is a conversation, not a rejection.
- Anyone who cannot accommodate two to five days of visible swelling before an important event.
How is the treatment performed?
- Assessment. Lip proportion, symmetry, tooth show, the height of the upper lip and skin quality are examined. Medical history, medication and previous filler are reviewed, along with any history of cold sores.
- Preparation. Topical anaesthetic cream for around twenty minutes; thorough disinfection.
- Injection. Small, measured amounts placed with a fine needle or a blunt cannula, in a sequence planned for your lip rather than a standard pattern.
- Moulding and comparison. The product is shaped by hand; both sides are compared throughout.
- Aftercare and review. Swelling settles over two weeks. A review appointment then decides whether more is warranted.
Treating in stages is deliberate. A conservative first session followed by a review gives a better result than one large session, and it makes over-treatment far less likely.
What happens afterwards?
| Period | What is usual |
|---|---|
| First 24 hours | Marked swelling; lips look larger than the planned result |
| Days 2–3 | Swelling at its peak, then beginning to settle; bruising possible |
| Days 4–7 | Most swelling resolved; shape becoming accurate |
| Week 2 | Result stable; review appointment |
| Months 6–12 | Gradual softening as the product is broken down |
Usual advice: cool compresses in the first day, avoid strenuous exercise, saunas, alcohol and very hot drinks for a day or two, avoid dental treatment for about two weeks, and sleep with your head slightly raised.
What are the risks?
Common and expected:
- Swelling — more pronounced here than anywhere else on the face.
- Bruising, common in this region.
- Tenderness for a few days.
- Small lumps or irregularity, often settling or correctable.
Uncommon but important:
- Cold sore reactivation in people with a history of herpes simplex.
- Infection at the injection site.
- Delayed inflammatory nodules or granulomas, which may appear weeks to months later and have been examined specifically in a systematic review of lip augmentation.
- Vascular occlusion — filler entering or compressing a blood vessel, which can cause tissue loss. Rare, but the reason this treatment belongs in medical hands with hyaluronidase available on site.
Seek immediate help for severe or increasing pain, blanching or mottled discolouration of the skin, or any change in vision. Do not wait to see whether it settles. In an emergency in Türkiye, call 112.
The risks that apply to you are discussed before treatment and again during consent. Results vary between people and no specific outcome is promised.
What affects the price?
The amount of product used and whether more than one session is planned. No prices are published on this site, and any figure given before assessment is indicative only. See the Medical Disclaimer.
Can it be combined with other treatments?
Yes — but not on the same day as anything that would confuse the assessment. Botulinum toxin around the mouth, jawline filler and skin treatments each address a different problem, and sequencing them lets each result be judged on its own.