Quick answer
Lip filler uses hyaluronic acid to hydrate the lips, define their contour or add some volume, in line with your facial proportions. It is a medical procedure performed with topical anaesthetic and takes about 30 to 45 minutes. Results are temporary and it always starts with an assessment.
What lip filler is
It is the injection of a hyaluronic acid gel into the lips, at points and in amounts defined by the doctor. It can be used to hydrate dry lips, define the contour, correct small asymmetries or restore volume lost with age.
Who it may suit
It may suit people whose lips feel thin, lack definition or have vertical lines around the mouth. It is not suitable during pregnancy or breastfeeding, with active cold sores or other infections in the area, among other situations the doctor checks at the consultation.
Want to know if it suits you? See our Hyaluronic acid page or book an assessment.
How the session works
- A conversation about what you are looking for and an examination of the whole face.
- Topical anaesthetic for comfort.
- Hyaluronic acid injected in small amounts, checking the result throughout.
- Aftercare advice for the following days.
Recovery and aftercare
Swelling, tenderness and sometimes small bruises are normal in the first days. For the first 24 to 48 hours, avoid intense exercise, excessive heat (sauna, strong sun) and pressing on the lips. The doctor will tell you when to come back for review.
A natural result: what matters
A balanced result depends more on planning than on quantity. That is why the assessment considers how the lips relate to the nose, chin and the rest of the face. See also how facial harmonisation works.
Frequently asked questions
Does it hurt?
Topical anaesthetic is used and many products contain anaesthetic. Most people describe a tolerable discomfort.
How long does it last?
It is temporary. Duration varies with the product, metabolism and habits; the doctor explains what to expect in your case.
Can I go back to work the same day?
Usually yes, although swelling may be visible for the first few days.
Is it reversible?
Hyaluronic acid can be dissolved with a specific enzyme if the doctor considers it necessary.
Take the first step with an assessment
At the consultation, the doctor examines you, explains the options and tells you clearly what is and is not suitable in your case.
Reference sources: Infarmed — Medicines information (SmPC and leaflet) · NHS — Cosmetic procedures · American Academy of Dermatology
Informational content prepared by the Mya Clínica team. It does not replace a medical consultation. Results vary from person to person and are not guaranteed. Mya Clínica · CÉLULA ÁUREA – UNIPESSOAL LDA · ERS registration E178305, E178306, E178307 · Operating licence no. 26007/2025.
