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Dermal Fillers FAQs

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Dermal fillers are the treatment at Centre for Surgery, and the patients ask in consultation tend to repeat. This FAQ collects the answers we give most often — covering longevity, safety, position, the right starting age, and what really happens during and after a filler appointment.

At our in Marylebone, all are performed by GMC-registered doctors using hyaluronic fillers. acid is a sugar that occurs naturally in skin, joints, and connective tissue; it binds water and provides and . Because it is broken down by the body already produces, hyaluronic acid are gradually absorbed over months — and can be dissolved on demand if needed. This is the safety feature that sets them apart from older fillers and biostimulators like Sculptra or Radiesse, which we do not use.

If you can’t find your question below, our coordinators are happy to talk things through on .

How long do dermal fillers last?

The honest answer is "it depends" — typically between 6 and 18 months, but this varies meaningfully by area and by . Lip tend to break down fastest because the lips are moving, eating, drinking and being expressed; expect 6 to 9 months on . Cheek and jawline fillers placed deep on bone last longest — often 12 to 18 months — because they sit in a anatomical layer. Tear trough fillers under the eye sit in the middle, usually 9 to 12 months.

Your metabolism, exercise level, and choice all influence longevity. Patients who train intensively or have high baseline metabolic rates often metabolise filler faster than sedentary . We discuss realistic expectations during consultation rather than promising a specific timeframe, over-promising on is a common red flag in this .

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At what age should I start dermal fillers?

There is no single correct age. Most patients have their first 25 and 40, often to address volume loss in the or to enhance lip shape. Volume loss in the cheeks becomes visible in the early as bone and fat-pad begin; subtle cheek filler at this stage can pre-empt the deeper folds that later.

We do not treat anyone under 18, and we are cautious with patients in their late teens and early twenties — at that age, the face is generally still definition, and is rarely needed. If a young patient comes in asking for filler to copy a specific celebrity or aesthetic, we will often suggest waiting and re-evaluating in a year. Good filler work is invisible; filler in a young face usually isn’t.

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Are dermal fillers safe?

Hyaluronic acid have an safety record when administered by a who understands facial . The most common side effects — swelling, bruising, mild — are predictable and within a week.

Serious complications are rare but possible. The two most important risks are vascular occlusion (filler injected into or a blood vessel, which can cause tissue damage if not treated quickly) and delayed nodule formation. Both are managed faster and more effectively in a clinic that stocks hyalase, has medical oversight, and is set up to handle complications. The "filler parties" and injectors that have proliferated in the UK do not have this safety net, which is why the landscape is now around who can legally inject.

At Centre for Surgery, all injectables are by in a . Hyalase is on-site, and access is built into every treatment.

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How much filler do I need for jawline enhancement?

is one of the more filler-intensive because it works in three dimensions across a large surface area. Most patients need 2 to 4 ml across the jawline and chin combined to see a change. Men need more product than women because the male jaw is larger and the outcome is more angular and .

We almost always split jawline across two — placing about 60 to 70% of the planned volume in the first session, assessing how it integrates after 2 weeks, then completing the work. This over-filling, allows tissue to settle, and gives a more natural-looking result than trying to do everything in one visit.

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Can dermal fillers make you look older if overused?

Yes. faces look heavier, less defined, and paradoxically older — this is the "puffy face" or "pillow face" effect you see on certain celebrities and influencers. It happens when too much is placed in planes, or when filler is added year after year without ever allowing previous treatments to fully dissolve. Hyaluronic acid is hygroscopic, meaning it water, so retained filler continues to absorb moisture and expand over time even when fresh isn’t added.

The good news: this is . dissolves excess or hyaluronic acid, and many of our patients come to us specifically to undo overfilling done elsewhere. The lesson is dosing, an injector who understands when to stop, and being honest about previous treatments at consultation.

Are dermal filler results permanent?

No, and we consider this a feature rather than a bug. Hyaluronic acid are by design. Faces change over time — bone structure shifts, fat pads migrate, skin laxity — and a filler that suited you at 32 may not suit you at 45. Temporary let your treatment plan evolve with your face.

fillers (silicone, methacrylate, polyacrylamide) do exist but carry significantly higher long-term risks — chronic inflammation, granulomas, migration, infection years after — and cannot be dissolved. We do not offer them.

What should I do before a dermal filler appointment?

A few simple steps reduce the risk of and swelling:

Arrive without makeup on the area if possible, and eat beforehand — patients who skip meals are more likely to feel light-headed.

How should I sleep after dermal filler?

For the first 2 to 3 nights, sleep on your back with your head elevated on two pillows. This swelling and stops uneven pressure on freshly placed filler, which can lead to asymmetry or displacement if you’re a heavy .

After 72 hours, the filler has integrated with tissue and you can return to your usual sleeping position. If you genuinely cannot sleep on your back, a travel pillow worn around the neck helps keep your head neutral.

Which filler lasts the longest?

Among hyaluronic acid products, the longest-lasting are dense, cross-linked for deep structural — used on the cheekbones, chin, and jawline. These can last 18 to 24 months in some patients. Softer, less cross-linked used for the lips and tear trough are designed to with mobile or tissue and last 6 to 12 months.

We don’t promote specific brand names in public because what matters is choosing the right product for the right anatomical area — a we make based on examination, not patient request. If you’ve read about a particular online, bring it up at and we’ll whether it’s right for your face.

How often should dermal fillers be topped up?

Most return every 9 to 12 months for . The exception is lips, where some top up at 6 months to shape, though we going longer between lip — letting filler fully dissolve before re-treating more results and avoids the volume creep that causes overfilled lips.

We don’t have a fixed . We assess at each visit whether top-up is actually needed; sometimes the answer is "not yet."

Will 1 ml of cheek filler make a difference?

1 ml — half a millilitre per side — is a dose for the cheeks. It will make a difference, particularly if you are slim-faced or have early volume loss, but it is on the end. Patients with more volume loss, or those wanting more obvious lift and definition, typically need 2 ml total (1 ml per side) for noticeable contouring.

We almost always recommend starting . You can always add more in a second session; you can’t easily remove filler that’s been placed too without dissolving the whole area and over.

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When do dermal filler results show?

The change is immediately — you’ll see the volume difference as soon as we hold up the mirror. However, the true final result takes 2 to 4 weeks to appear. In the first 48 to 72 hours there is usually some that makes the area look slightly fuller than it really is. Swelling resolves, the filler integrates with tissue, and the result settles into its appearance.

We routinely book a 2-week review for new patients so we can assess the result and add small refinements if needed.

What are the common side effects after filler treatment?

and normal:

us promptly if you notice:

The first four can indicate vascular compromise and need same-day .

How long do hyaluronic acid fillers last?

Already covered above in detail, but the headline: 6 to 18 months depending on product, placement, and . Anyone a single number is over-simplifying.

Can I exercise after dermal fillers?

Avoid and saunas for 24 hours. Light walking is fine the same day. Heavy training, hot yoga, and steam rooms can increase swelling, bruising, and the (very small) risk of bacterial of the injection site.

After 24 hours, resume normal . After 2 weeks, there are no restrictions.

Can I have dermal fillers if I’m pregnant or breastfeeding?

We don’t treat patients who are pregnant, breastfeeding, or trying to . This isn’t because hyaluronic acid is known to be unsafe — there are no good studies in this group precisely because women aren’t enrolled in trials — but because the precautionary . Wait until you’ve finished before resuming injectable .

Can dermal fillers be combined with other treatments?

Yes — most of our dermal fillers with at least one other modality. Common combinations include:

We usually space treatments by 2 weeks where possible — for example, doing first, then two weeks later — so we can the to each treatment.

Why choose Centre for Surgery for your dermal fillers?

We are a CQC-regulated cosmetic clinic on Baker Street in London. All are by GMC-registered doctors, never by nurse without medical and never in unregulated settings. is stocked on-site, and management is built into our protocols rather than outsourced.

Our approach is — we’d rather see you again in 6 weeks for a small top-up than over-fill at the first visit. We do not use permanent fillers, (Sculptra, Radiesse), or branded products we wouldn’t be comfortable dissolving if needed. We do not perform thread lifts.

Consultation is structured, written, and includes a 2-week period before any procedure. If we don’t think filler is the right answer for what you’re describing, we will say so.

To book a consultation, call , email , or complete the contact form below.

Centre for Surgery
Baker Street, London W1U 6RN