A lip flip is a cosmetic treatment in which a small amount of botulinum toxin is injected into the muscle just above the upper lip. This gently relaxes the muscle, causing the upper lip to roll slightly outward.
The result is not added volume, as with dermal fillers, but the appearance of a fuller upper lip because less of the lip rolls inward when talking or smiling.
The treatment is often chosen by individuals seeking a subtle lip enhancement without fillers, or by those who would like to see how a fuller lip appearance may suit them.

Performed using botulinum toxin
Creates a subtly outward-rolling upper lip
No added volume, unlike dermal fillers
Treatment takes approximately 10 minutes
Results are usually visible within 3–7 days
Effects last on average 2–3 months
Suitable for subtle lip enhancement
People may respond differently to a lip flip because anatomy and muscle activity vary between individuals. The treatment relaxes the orbicularis oris muscle using botulinum toxin, allowing the upper lip to tilt slightly outwards. Muscle strength, lip thickness and skin elasticity all influence how visible this effect is. In addition, dosage, injection technique and individual sensitivity can affect both the degree and duration of muscle relaxation. As a result, outcomes and experiences may differ.
The speed at which a lip flip takes effect can vary due to individual biological factors. Botulinum toxin works by blocking the release of acetylcholine between nerve and muscle, but the rate of this process depends on factors such as muscle activity, blood circulation and metabolism. In some individuals, the effect may become noticeable sooner. Dosage and precise injection placement can also influence how quickly the muscle relaxes.
Perceived results may vary due to differences in anatomy and individual expectations. The shape of the upper lip, muscle strength of the orbicularis oris and skin elasticity all affect how much the lip tilts outwards. While botulinum toxin reduces muscle activity, the visible outcome and how it is experienced can differ from person to person. Personal expectations may also influence satisfaction with the result.
Prices for a lip flip can vary between clinics due to differences in costs and professional factors. These may include clinic overheads, practitioner qualifications, product choice and time spent on consultation and aftercare. Dosage and the cost of botulinum toxin can also influence the overall price.
Comparing clinics can help you make an informed decision. Treatment approach, dosage and injection technique may vary, which can influence both results and the likelihood of side effects, such as temporary asymmetry or changes in lip movement. Practitioner experience and aftercare policies may also differ. Reviewing these factors can provide a clearer understanding of what to expect.
Goal: to subtly tilt the upper lip outwards
Treatment duration: 10–15 minutes
Anaesthetic required: usually not
A small amount of botulinum toxin is injected into several points just above the upper lip.
No. The effect is temporary and typically lasts around 2 to 3 months.
With a lip flip, side effects such as mild swelling, redness or a bruised sensation around the upper lip may occur. In rare cases, there may be a temporary change in speech or drinking from a straw may feel slightly more difficult. The risk depends less on the product itself and more on correct dosage, injection technique and knowledge of the anatomy around the mouth. This is why comparing practitioners and clinics is important for both safety and a balanced result.
A less optimal result may present as asymmetry, excessive relaxation of the upper lip or an unnatural feeling when speaking or smiling. In some cases, the lip may feel less controlled during certain movements. This does not necessarily indicate a safety issue, but rather that the dosage or placement may not have been fully balanced. An experienced practitioner can assess this and, if appropriate, adjust the approach in a future treatment.
The amount used varies between individuals and depends on muscle activity and lip shape. On average, between 4 and 10 units are used, distributed across several small injection points above the upper lip. A higher dose does not necessarily produce a better outcome; a precise, lower dose is often used to achieve a subtle and natural-looking effect. The practitioner will determine the appropriate amount during consultation.
The effect of a lip flip is usually noticeable within three to seven days. In the first few days, the muscle may still be partially active. The final result is typically assessed after around 10 to 14 days, once the muscle has fully relaxed and any mild swelling has settled.
A lip flip relaxes the muscle above the lip, allowing the upper lip to roll slightly outwards and appear subtly fuller without adding volume. Lip fillers, by contrast, add volume using hyaluronic acid and can more noticeably change the shape and contour of the lips. A lip flip offers a more subtle effect, while fillers provide more defined volume enhancement. The most suitable option depends on your goals and individual anatomy.
Lip Flip (botulinum toxin)
Russian lips technique
Lip liner correction
A Lip Flip may provide:
A subtly fuller appearance
Less inward rolling of the upper lip
A natural effect when smiling
Duration: typically around 2–3 months
Safety depends on:
Correct dosage
The practitioner’s experience
A thorough consultation
















The effect typically lasts around 2 to 3 months.
Aftercare:
Do not massage the treated area
Avoid lying flat for the first 4 hours
Avoid intense physical activity for 24 hours
Suitable for people who:
Would like a subtly fuller upper lip
Prefer not to use dermal fillers
Notice that the upper lip rolls inward when smiling
Less suitable if:
A significant increase in volume is desired
There is already minimal visible upper lip at rest
The cost of a lip flip can vary between clinics and depends on the amount of botulinum toxin used.
Comparing clinics can help provide insight into pricing, quality and practitioner experience.
| Treatment | Unit | City/country | Price | |
|---|---|---|---|---|
| Lip Flip treatment prices | treatment | United Kingdom | £ 50 | Lowest price |
| Lip Flip treatment prices | treatment | United Kingdom | £ 121 | Average price |
| Lip Flip treatment prices | treatment | United Kingdom | £ 550 | Highest price |
Compare on experience & price Make an appointment immediately
Natural-looking result
Subtle enhancement
No “overfilled” appearance
Clear explanation during the consultation
Transparent pricing
Lip Flip vs lip fillers
A lip flip relaxes the muscle, while dermal fillers add volume.
Lip Flip vs lip liner tattoo
A lip liner tattoo alters colour and contour, but does not affect muscle activity.
Compare based on:
Experience with lip flip treatments
Before and after photos
Transparency about risks
Patient reviews








Dosage approach
Personal assessment
Aftercare policy
Pricing structure








A lip flip uses botulinum toxin to temporarily reduce muscle activity. After injection, the effect usually begins within 2 to 5 days, as the product gradually blocks nerve-to-muscle signalling. The full result is typically visible after 10 to 14 days. At this stage, the upper lip may appear slightly more outward-turned due to reduced muscle contraction.
A lip flip may be effective for individuals whose upper lip rolls inward when talking or smiling. By relaxing the orbicularis oris muscle, the downward pull is reduced. This can make more of the natural lip visible without adding volume. The effect is subtle and varies depending on muscle activity and individual anatomy.
As the muscle is temporarily relaxed, mild functional changes may occur. Some people notice slight difficulty with actions such as whistling, drinking from a straw or clear pronunciation during the first few weeks. The result is temporary and typically lasts around 6 to 8 weeks. If the dosage or placement is not optimal, asymmetry or a limited effect may occur.
After treatment, it is generally advised not to lie down for the first 4 hours to reduce the risk of product migration. Avoid massaging or applying pressure to the treated area, as this may affect distribution. Strenuous exercise and exposure to high heat (such as saunas) are usually avoided for 24 hours. These precautions help minimise the risk of unwanted spread of the product.
Make-up on the lips is usually best avoided for the first 24 hours. Applying pressure or friction too soon could potentially affect product distribution. Allowing a short waiting period gives the botulinum toxin time to bind effectively.
Most aftercare guidance recommends remaining upright for around 4 hours following treatment. During this time, the botulinum toxin begins to bind to nerve endings. Lying down too soon may increase the risk of it spreading to nearby muscles, so avoiding a horizontal position temporarily is advised.
A lip flip is a subtle and temporary treatment using botulinum toxin that can make the upper lip appear fuller without adding volume. It is often chosen by those seeking a natural-looking enhancement without dermal fillers.
Results vary between individuals and depend on factors such as lip shape, muscle strength and practitioner technique. Comparing clinics and prices can help you make an informed and appropriate choice.
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