Dermal Fillers in Knightsbridge: The Complete Guide

What are dermal fillers and how does hyaluronic acid work?

Dermal fillers are injectable gels placed under the skin to restore volume, support and definition. Most are made of cross-linked hyaluronic acid, a sugar molecule found naturally in skin that binds water. Cross-linking makes the gel last months rather than days, and firmer gels provide more lift.

Your body already makes hyaluronic acid (HA); it helps skin hold water and gives tissue its plumpness. Natural HA breaks down within days, so filler manufacturers link the molecules together into a gel. The degree of cross-linking and the particle size decide how firm the gel is, how much it lifts, how well it spreads and how long it lasts. A firm gel placed deep on bone can support a cheek or chin; a soft gel placed superficially can refine a lip border.

Not every filler is hyaluronic acid. Calcium hydroxylapatite and poly-L-lactic acid are “biostimulatory” fillers that work partly by triggering collagen, and they cannot be dissolved. Permanent fillers exist but are rarely recommended because problems can be difficult to correct. At Levirgo we use established hyaluronic acid products, and you are always told the product name, as NHS guidance recommends asking.

Which areas can dermal fillers treat?

Fillers are used for the lips, cheeks, temples, chin, jawline, under-eye hollows, nose profile and folds such as nasolabial and marionette lines. Structural areas on bone tend to last longest. Some areas, particularly the nose, glabella and tear trough, carry higher risk and need an experienced injector.

At Levirgo, filler treatments include lip filler, tear trough filler, non-surgical rhinoplasty and full facial contouring of the cheeks, temples, chin, jawline, forehead, smile lines and marionette lines. You can see each option on our dermal fillers treatment page. Under-eye concerns are not always a filler problem; pigmentation, thin skin or fat bulging need different approaches, which is why our eye and eyelid rejuvenation options exist alongside filler.

Who is a good candidate for dermal fillers, and who is not?

Good candidates are healthy adults over 18 with genuine volume loss, a structural feature they would like to balance, or folds linked to lost support, who want a natural result. Filler is avoided in pregnancy and breastfeeding, over active skin infection, and with some autoimmune conditions or allergy to ingredients.

Fillers often suit people who

• Notice a flatter midface, hollow temples or a tired look that sleep does not fix.
• Want better balance between features, such as a stronger chin in profile.
• Have lips that have thinned or lost definition with age.
• Understand that the goal is refreshment and proportion, not a new face.

Treatment is usually postponed or avoided if you

• Are pregnant or breastfeeding.
• Have a cold sore, acne flare or infection in or near the area.
• Have an active autoimmune condition, or a history of reactions to fillers or lidocaine.
• Have dental treatment planned within about two weeks, which many practitioners avoid because of infection risk.
• Take blood-thinning medicines or supplements; these increase bruising and must be discussed, never stopped without medical advice.
• Are under 18. The Botulinum Toxin and Cosmetic Fillers (Children) Act 2021 made cosmetic filler injections for under-18s illegal in England.
• Feel pressure to change your appearance, or are seeking repeated treatment for a feature others do not notice.

NHS advice suggests being clear about why you want a procedure, understanding all costs including maintenance, and taking time to decide. A responsible injector will sometimes recommend less filler, a different treatment, or none at all.

How long do dermal fillers last?

Visible results from hyaluronic acid filler typically last 6 to 18 months, depending on the product, area and how much movement there is. But the gel can remain far longer: an MRI review found filler in all 33 patients at least two years after mid-face treatment, and in one case up to 15 years.

Lips move constantly and have a rich blood supply, so filler there tends to look softer sooner. Cheeks, temples and chin, where product sits deeper on bone, usually hold their shape longer. Your metabolism, the volume placed and the gel’s firmness all play a part, so the same product can behave differently in two people.

That finding, from a 2024 review of MRI scans, challenges the idea that filler simply disappears within a year. The authors suggest reconsidering routine “refill” schedules. In practice it means an honest injector keeps a record of how much you have had in each area and resists topping up just because a calendar date has passed. Accumulated filler is one of the main causes of the heavy, overfilled look, and it is avoidable.

What happens during a dermal filler appointment? Step by step

A filler appointment includes a medical history and full-face assessment, photographs, consent and written pricing, then treatment with a fine needle or blunt cannula, usually with local anaesthetic in the gel. Injecting takes around 15 to 45 minutes depending on the areas, followed by aftercare advice and a review.

1. Consultation and history

   Your practitioner asks about your health, medicines, allergies, previous filler and dental plans, and what you want to change. NHS guidance suggests asking the product name, where it came from, and the practitioner’s qualifications and experience.

2. Full-face assessment

   Your face is assessed at rest, while talking and smiling, and from the side. Photographs create a baseline. The plan usually prioritises structure before individual features.

3. Consent, plan and price

   You agree the areas, product and approximate volume, discuss risks including rare vascular complications, and receive the price in writing. You should be able to take time to decide.

4. Preparation

   The skin is thoroughly cleaned. Numbing cream may be applied, and most modern HA fillers contain lidocaine, a local anaesthetic.

5. Injection

   Small amounts are placed slowly with a needle or cannula, checking symmetry as the practitioner goes. Cannulas are often chosen for higher-risk areas.

6. Aftercare and review

   You leave with written aftercare and an emergency contact. A review at around two to four weeks, once swelling has settled, allows any small refinement.

Recovery after dermal fillers: what is normal?

Most people return to normal activities the same day. Swelling, tenderness and bruising are common and usually settle within a few days, although lips and under-eyes can stay swollen for up to a week or two. Severe or worsening pain, colour change or vision problems are not normal.

• Avoid touching, pressing or massaging the area unless your injector advises it.
• Skip strenuous exercise, saunas, steam rooms and alcohol for about 24 hours.
• Avoid facials, facial massage and dental work for around two weeks if possible.
• Sleep with your head slightly raised for the first night if the lips or under-eyes were treated.
• Use a cold compress wrapped in a cloth for comfort in short intervals.

Are dermal fillers safe? Complications and what the evidence shows

Filler is usually safe in trained hands, but complications can be serious. The most important is vascular occlusion, when filler blocks a blood vessel. A study of 1.7 million syringes found it in about 1 in 6,410 needle and 1 in 40,882 cannula injections, and 85% of occlusions had no long-term effects.

The same JAMA Dermatology study found that cannula injections had 77.1% lower odds of occlusion than needles, and that injectors with more than five years’ experience had 70.7% lower odds than less experienced colleagues. Nasolabial folds and lips were the areas most often affected, while the most severe occlusions occurred at the glabella, between the brows.

Can dermal fillers be dissolved? Hyaluronidase explained

Yes, if the filler is hyaluronic acid. An enzyme called hyaluronidase, a prescription-only medicine in the UK, breaks down HA gel and keeps working for about 24 to 48 hours. It is used for emergencies, lumps, migration or a result you dislike. Biostimulatory fillers cannot be dissolved.

Hyaluronidase has been used in medicine since 1949. Published guidance from UK aesthetic complications experts notes that it has a very short half-life but a clinical effect lasting 24 to 48 hours, and that it can break down both injected filler and some of your natural hyaluronic acid, which recovers. Using it to dissolve cosmetic filler is an off-licence use, which your practitioner should explain as part of consent.

• Allergy: the incidence of hypersensitivity is widely quoted at about 0.1%. People allergic to bee or wasp stings may be at higher risk, and a skin test may be used before non-emergency treatment.
• Timing: results are often visible within a day or two; a second session is sometimes needed.
• Re-treatment: most practitioners wait around two weeks, once swelling has settled, before placing new filler conservatively.
• Prescribing: because hyaluronidase is prescription-only, a practitioner who cannot access it promptly cannot manage an HA emergency themselves.

At Levirgo, our filler dissolving service corrects overfilled areas, uneven results and complications from treatment elsewhere. If you have had filler you are unhappy with, a consultation starts with finding out what product was used, where and when.

Are dermal fillers regulated in the UK? How to choose an injector

Not tightly, yet. Unlike botulinum toxin, dermal fillers are not prescription-only, and there are currently no specific legal controls on who can inject them in England, apart from the under-18 ban. The government plans a local authority licensing scheme, so choosing a registered, trained professional is essential.

A House of Commons Library briefing explains that there are no specific controls on who can offer non-surgical cosmetic procedures, and that practitioners may choose voluntary registers such as the Joint Council for Cosmetic Practitioners (JCCP) and Save Face. Section 180 of the Health and Care Act 2022 allows a licensing scheme. In August 2025 the Department of Health and Social Care announced that lip and facial fillers will come under a new local authority licensing system, and that the highest-risk procedures, such as fillers injected into breasts, buttocks and genitals, will be restricted to qualified healthcare professionals in CQC-registered providers.

1. Check professional registration with the GMC, NMC, GDC or GPhC, and ask about specific filler training and how long they have been injecting.
2. Ask about emergencies: do they keep hyaluronidase on site, have a written vascular occlusion protocol, and have a prescriber available?
3. Ask the product name and where it came from, as NHS guidance recommends.
4. Avoid red flags: short-course-only training, parties, voucher deals, home or hotel treatments, and practitioners who only advertise on social media.
5. Expect a full-face assessment, a written plan and price, and time to decide.
6. Confirm aftercare, a review appointment and an out-of-hours contact.

How much do dermal fillers cost in London?

In London, lip filler typically costs £250 to £450, cheek, chin or jawline filler £300 to £550 per ml, and tear trough or non-surgical rhinoplasty £400 to £800. Dissolving with hyaluronidase is usually £150 to £350 per area. Prices are indicative and confirmed after assessment.

Because filler often lasts a year or more, the cost per month can be lower than it first appears: £450 of cheek filler lasting 15 months is about £30 a month. Very cheap filler is a false economy if it leads to dissolving and redoing. Compare filler with other options in our guide to non-invasive facial rejuvenation costs.

Dermal fillers vs anti-wrinkle injections, skin boosters and HIFU

Fillers restore volume and structure. Anti-wrinkle injections relax movement lines. Skin boosters and polynucleotides improve skin quality, and HIFU tightens mild laxity. Choosing the wrong tool, such as filler for movement lines or crepey skin, is a common cause of disappointing or unnatural results.

Why choose Levirgo for dermal fillers in Knightsbridge?

Levirgo Aesthetics Clinic at 6 Beauchamp Place, Knightsbridge SW3 1NG, a short walk from Harrods and Knightsbridge Underground station, offers full-face assessment, conservative hyaluronic acid filler, hyaluronidase on site with an emergency protocol, filler dissolving and clear written pricing.

• Whole-face planning that balances proportions rather than chasing one feature.
• Conservative volumes, a review at two to four weeks and a record of lifetime filler by area.
• Low-pressure technique and cannulas in higher-risk areas where appropriate.
• Hyaluronidase on site and a written vascular emergency protocol.
• Filler dissolving and correction, including for treatment received elsewhere.
• Honest advice when anti-wrinkle injections, skin boosters or no treatment would suit you better.

Beauchamp Place runs off Brompton Road, a few minutes on foot from Knightsbridge station on the Piccadilly line. Patients often visit from Belgravia, Sloane Square and Kensington. Browse more face treatments, or book a consultation to talk through a plan.