NEUROMODULATORS · TREATMENT
Lip flip
A lip flip aims to reveal a little more of the upper lip by relaxing selected muscle activity. It changes lip movement rather than adding filler volume.

Is it right for me?
It may be considered when the upper lip rolls inward on smiling. It is not suitable for everyone who wants larger lips, and lip function must be considered.
Treatment is unsuitable with an infection at the injection site or allergy to the proposed product. Neuromuscular illness, swallowing or breathing problems and medicines that affect muscle function need specific review. Pregnancy and breastfeeding require discussion because safety data are limited; elective treatment may be deferred.
Evidence and realistic expectations.
A lip flip is an off-label use of many botulinum toxin products, with less clinical evidence than established upper-face indications. It is not equivalent to lip filler.
Any extra lip show is usually subtle. Temporary weakness can affect drinking, speech or lip closure; a larger dose is not automatically a better result.
Risks to understand.
Bruising, headache, asymmetry and unwanted muscle weakness can occur. Depending on the area, this can affect the eyelids, smile, chewing or neck. Rare spread of toxin effect can cause serious weakness. Trouble speaking, swallowing or breathing after treatment needs immediate medical attention.
What to expect.
Consultation
Discuss your concern, medical history, previous treatments and what you would like to preserve. Dr. Roy will explain suitable options, alternatives, risks and fees before you decide.
Treatment
Following an assessment of your smile and lip movement, a small number of botulinum toxin injections are placed around the upper lip.
Recovery
Allow for temporary injection marks or bruising. Dr. Roy will explain activity and aftercare advice for the areas treated; do not plan around a promise of zero downtime.
Results and review
A change may appear over the following days and is assessed after it has settled. The effect is temporary; a reliable duration cannot be promised across different products and treatment plans.
Number of visits
A review helps decide whether you like the effect before considering maintenance.
Good questions.
Clearer decisions.
What can lip flip address?
Upper-lip show when smiling. A lip flip aims to reveal a little more of the upper lip by relaxing selected muscle activity. It changes lip movement rather than adding filler volume.
Who might be a suitable candidate?
It may be considered when the upper lip rolls inward on smiling. It is not suitable for everyone who wants larger lips, and lip function must be considered.
What happens during the appointment?
Following an assessment of your smile and lip movement, a small number of botulinum toxin injections are placed around the upper lip.
How much recovery time should I allow?
Allow for temporary injection marks or bruising. Dr. Roy will explain activity and aftercare advice for the areas treated; do not plan around a promise of zero downtime.
When could I see a change?
A change may appear over the following days and is assessed after it has settled. The effect is temporary; a reliable duration cannot be promised across different products and treatment plans.
How many visits might I need?
A review helps decide whether you like the effect before considering maintenance.
Can I drink or pronounce words normally afterward?
Temporary lip weakness may make drinking through a straw, whistling or some lip movements more difficult. Discuss those activities before deciding on treatment.
What is the cost of lip flip?
Contact the clinic for current fees. Ask for the price of the consultation, each proposed treatment, any planned review and any optional additional steps before deciding. No fixed fee is published on this page.
General patient information. A consultation is needed to determine your suitability. Treatment choices and outcomes vary.
Further reading: Botulinum toxin: patient questions · Botulinum toxin: example US prescribing information and area-specific warnings. These sources do not endorse the clinic. Regulatory information from other countries is identified as such.
Evidence and copy checked 2026-09-16.
Related care.
Request a consultation.
Ask about lip flip with Dr. Roy. Choose your topic, then review and send your request on WhatsApp.
A conversation first.
Take the time you need.
A consultation is a chance to discuss options, risks and costs. You can ask about a simpler plan or decide not to proceed.