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Lip Fillers Explained: Types, Cost and What to Expect

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Lip Fillers Explained: Types, Cost and What to Expect

Written By Dr Sabika Karim 21st October 2025.

Lip filler is one of the most requested aesthetic treatments in the UK, but it’s also one of the most misunderstood. Done well, lip fillers can add soft volume, define your lip shape or restore balance, with results that look like a refreshed version of you rather than an obvious “filled” look. The difference usually comes down to the product, the technique and the person holding the needle.

Here’s lip fillers explained: the main types and techniques, what they cost, and what to expect before, during and after treatment.

How lip filler works

Most modern lip fillers are made from hyaluronic acid (HA), a sugar molecule that occurs naturally in the skin and helps hold moisture. Filler products use a stabilised form of HA, shaped into a smooth gel that can be placed precisely within the lips.

Once injected, the gel adds volume where it is placed and draws in water, which also gives the lips a hydrated, plumper look. Different products vary in firmness: softer gels suit subtle hydration and natural volume, while slightly firmer gels hold structure along the lip border. Most lip fillers also contain a local anaesthetic to make treatment more comfortable.

Over time, the body gradually breaks the filler down, which is why results are temporary. Because HA filler can be dissolved with an enzyme called hyaluronidase, it is also one of the more adjustable aesthetic treatments.

Before
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After
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Lip filler types and techniques

When people search for lip filler types, they are often looking for named techniques they have seen online. In practice, these are approaches rather than different products, and an experienced practitioner will often combine them.

Natural lip enhancement

Natural lip fillers aim for subtle change. Small amounts of soft filler are placed to add gentle volume and hydration, smooth fine texture and improve balance between the upper and lower lip. This approach suits first-time patients and anyone who wants others to notice they look well, not that they have had treatment.

Border definition

Over time, the edge of the lips (the vermilion border) and the cupid’s bow can become less defined. Border definition uses fine placements along the lip outline to sharpen shape and help reduce the look of lipstick bleed. It is often combined with a small amount of volume for a balanced result.

The Russian lip technique

The Russian lip technique uses vertical placements, from the border into the body of the lip, to add height rather than forward projection. The result is a flatter, more lifted profile with a heart-shaped cupid’s bow. It can look striking on the right lip shape, but it is not suitable for everyone and usually needs a reasonable amount of natural lip tissue to work well.

Comparing lip filler approaches

Approach

Main aim Typical amount Best suited to
Natural enhancement Soft volume and hydration Often 0.5ml to 1ml First-time patients, subtle results
Border definition Sharper outline and cupid’s bow Often 0.5ml Thinning or blurred lip edges
Russian lip technique Lip height and lift Often 1ml or more, built in stages Patients wanting a lifted, defined shape

How a practitioner tailors your lip filler

The most natural results come from treating the lips as part of the whole face rather than in isolation. At your consultation, your practitioner will look at:

  • the proportion between your upper and lower lip, as most balanced lips have a slightly fuller lower lip
  • the width of your lips compared with your nose, chin and jawline
  • your natural lip shape, symmetry and border definition
  • your profile, so the lips do not project too far forward
  • your goals, including any photos you like, and whether they suit your anatomy

This is why the same request, such as “fuller lips”, can lead to very different treatment plans for two different people. You can find out more about our wider approach to dermal fillers.

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How much do lip fillers cost?

Lip filler cost varies depending on the amount of product used, the brand of filler, the experience of the practitioner and whether a review appointment is included. As a general guide, lip filler in London and the South East often ranges from around £200 to £450 for 0.5ml to 1ml, with more complex treatments costing more.

At Skin Medical, lip filler starts from £300, depending on the product chosen. Options include Juvéderm Volbella and Juvéderm Ultra Smile (£300), Definisse Touch (£350), Revanesse Kiss and MaiLi Precise (£400), and Estyme Lips (£450). A consultation is required before treatment, and the consultation fee is redeemable against treatment if you book on the day. Your exact price will be confirmed once your treatment plan is agreed, and you can view all current prices on our pricing page.

It is worth being cautious about very low prices. Cheaper treatments can mean unregulated products, limited medical training or no access to emergency care if something goes wrong. With lips, the quality of the product and the skill of the practitioner matter far more than the price.

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What to expect on the day

Your appointment begins with a consultation covering your medical history, goals and suitability. Your practitioner will then plan the treatment with you before anything is injected.

Numbing cream is usually applied first, and most lip fillers contain a local anaesthetic, so the treatment is generally well tolerated. The injections themselves take around 15 to 20 minutes. You will see a difference straight away, although swelling means your lips will look fuller at first than the final result.

Downtime and lip filler aftercare

Swelling is normal and is usually most noticeable for the first 24 to 72 hours, settling gradually over one to two weeks. Bruising and tenderness are also common and may take a few days to fade.

Typical lip filler aftercare advice includes:

  • avoid strenuous exercise, saunas and hot environments for 24 to 48 hours
  • avoid alcohol for 24 hours, as it can increase swelling and bruising
  • avoid pressing, massaging or kissing for the first day unless advised otherwise
  • avoid lipstick and lip products for the first 24 hours
  • use a cold compress wrapped in a clean cloth to ease swelling
  • book any important events at least two weeks after treatment

A review appointment around two weeks after treatment is a good opportunity to check the result once swelling has settled. At Skin Medical, a follow-up review is included where clinically appropriate.

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How long do lip fillers last?

Lip fillers typically last 6 to 12 months, depending on the product, the amount used and your metabolism. Lips move constantly, so filler tends to break down faster here than in other areas of the face. Many patients choose small top-up treatments to maintain their result rather than starting again from scratch.

How to avoid an overfilled look

An overfilled look usually happens when too much filler is added too quickly, when filler is placed beyond the natural lip border, or when repeated top-ups build up over time without the overall shape being reassessed. Filler that has moved above the lip line, sometimes called migration, can also create a puffy or shelf-like appearance.

You can reduce the risk by:

  • choosing a medically trained practitioner with experience in lip anatomy
  • building volume gradually, often starting with 0.5ml
  • keeping proportions in mind rather than chasing a specific size
  • allowing filler to settle fully before deciding on more
  • having a reassessment before each top-up

If filler has migrated or the result no longer looks right, hyaluronic acid filler can usually be dissolved with hyaluronidase, allowing the lips to be reassessed and, if wanted, treated again more conservatively.

Before
After

Who are lip fillers suitable for?

Lip fillers may suit adults who want to:

  • add volume to naturally thin lips
  • improve symmetry between the upper and lower lip, or between sides
  • define the lip border and cupid’s bow
  • restore hydration and fullness lost with age

Lip filler may not be suitable during pregnancy or breastfeeding, during an active cold sore or infection, or for people with certain medical conditions or allergies. It is also illegal in England to give cosmetic filler to anyone under 18. Your practitioner will review your medical history before treatment.

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If your concern is ageing rather than volume

Some patients are less concerned about size and more bothered by thinning lips, vertical lines around the mouth or lipstick bleed. In these cases, a softer filler, skin boosters or other treatments may be more appropriate than adding volume. Our guide to wrinkled lips and our blog on the causes and treatments for lip lines explain these options in more detail.

Why choose Skin Medical for CoolSculpting in London?

Skin Medical is an award-winning, doctor-led clinic at the William Old Centre, Ducks Hill Road, Northwood HA6 2NP, with free on-site parking. Patients visit us from across London and nearby areas including Rickmansworth, Pinner, Ruislip, Harrow and Chorleywood.

  • Every treatment starts with a consultation focused on proportion and natural-looking results
  • Treatments are led by Dr Sabika Karim and our medical team
  • We use premium, regulated hyaluronic acid fillers, including Juvéderm, Revanesse, MaiLi and Estyme, and Dr Sabika Karim is a trainer and key opinion leader for MaiLi
  • If a result needs adjusting, our filler correction service can review and, where appropriate, dissolve filler

Find out more on our lip fillers page.

Lip Fillers

Frequently asked questions

Do lip fillers hurt?

Most people find lip filler very manageable. Numbing cream is usually applied before treatment, and most lip fillers contain a local anaesthetic that takes effect as the product is injected. You may feel some pressure or brief stinging. Afterwards, the lips can feel tender and swollen for a few days, which usually settles without needing more than simple pain relief.

How long do lip fillers last?

Lip fillers typically last 6 to 12 months. How long yours last depends on the product used, the amount injected, your metabolism and how much your lips move. Because the lips are constantly in use, filler tends to break down faster here than elsewhere on the face, so many patients choose small top-ups to maintain their results.

How much do lip fillers cost?

Lip filler cost depends on the product used, the amount needed and the practitioner’s experience. In London, prices often range from around £200 to £450. At Skin Medical, lip filler starts from £300, depending on the product chosen. Your practitioner will confirm your exact price at consultation once your treatment plan is agreed.

What is the Russian lip technique?

The Russian lip technique uses vertical injections from the lip border into the body of the lip to add height rather than forward projection. This creates a flatter, lifted profile with a defined, heart-shaped cupid’s bow. It does not suit every lip shape, so your practitioner will assess whether it is appropriate for your anatomy and goals.

Can lip fillers look natural?

Yes. Natural-looking lip fillers depend on choosing the right product, using a conservative amount and respecting your facial proportions. Many patients start with 0.5ml and build gradually. A good practitioner will focus on balance between the upper and lower lip and the rest of your face, rather than simply making the lips bigger.

How long does lip filler swelling last?

Swelling is usually most noticeable for the first 24 to 72 hours and gradually settles over one to two weeks. Bruising can also take a few days to fade. A cold compress, avoiding alcohol and strenuous exercise, and keeping your head raised can help. It is best to avoid booking important events within two weeks of treatment.

Can lip fillers be dissolved?

Yes. Hyaluronic acid lip fillers can usually be dissolved with an enzyme called hyaluronidase. This may be used to correct lumps, migration or a result you are unhappy with, and it is also used urgently if a complication affecting blood flow occurs. Your practitioner will assess your lips and explain whether dissolving is appropriate before any treatment.

Can lip filler help with lip lines?

Lip filler can sometimes soften fine lines by restoring hydration and support, but vertical lines around the mouth often respond better to a tailored approach. This may include very soft fillers, skin boosters or treatments that improve skin quality. Your practitioner will recommend the most suitable option based on whether your concern is volume, lines or both.

Book a lip filler consultation

Whether you want subtle hydration, better definition or more volume, the best results start with a proper plan. At a consultation, we will assess your lips and facial proportions, explain your options and map out a natural-looking approach that suits you. Contact us on 01923 590 057 to book, or visit our lip fillers page to learn more.

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