If the appearance of certain facial lines — such as frown lines, forehead lines or the lines around the eyes — is a concern for you, one of the first questions is usually what non-surgical options exist and whether any of them would be appropriate for you. This article explains, in general terms, how one category of non-surgical injectable treatment for facial lines works, the areas of the face it is used for, what treatment involves and — just as importantly — its limitations and risks, so that any decision you make is an informed one taken with a qualified practitioner.
The medicines used in many injectable treatments for facial lines are prescription-only. By law, we cannot name specific brands, products or quantities in public information. These details, along with whether any treatment is appropriate for you, the potential benefits, the limitations and the risks, are discussed with you during an individual consultation.
There is no result that applies to everyone. Individual results vary and outcomes depend on the individual, so the only way to understand what is realistic for you is an individual assessment. A treatment of this kind is not a way to stop ageing — ageing is a normal process — and it is not suitable for everyone.
People weighing up treatment for the appearance of facial lines often ask how long the results of line-softening treatments last and what the treatment can and cannot do. Because this is a considered medical decision, useful starting points are understanding how the treatment works, how long any result tends to last, what its realistic limits are, and what the risks involve.
What These Treatments Are
This kind of injectable treatment uses a prescription-only medicine to temporarily reduce movement in specific facial muscles, which can soften the appearance of some expression lines. Because the medicine is prescription-only, whether the treatment is appropriate for you — and any details about products or quantities — is determined by a qualified practitioner after assessing your individual circumstances.
How the Treatment Works in General Terms
The medicine works by temporarily reducing the nerve signals that tell certain muscles to contract. When a small amount is placed into a targeted muscle, that muscle’s movement is reduced for a period of time, which can make the overlying expression lines look less pronounced. The same class of medicine is also used in some medical (non-cosmetic) settings — for example, for certain cases of excessive sweating — but whether any use applies to you is a clinical decision.
Treatment involves small injections into specific facial muscles. Commonly discussed areas include the frown lines, forehead lines and the lines around the eyes. Any effect is temporary. Some change may be noticeable within a few days, with the fuller effect developing over roughly two weeks before gradually wearing off. How long that takes differs from person to person and is not guaranteed.
How This Differs from Volume-Adding Treatments
Softening the appearance of movement-related lines is a different aim from restoring lost facial volume, and the two use different types of injectable treatment. A line-softening treatment reduces the muscle movement that causes dynamic (expression) lines; a volume-adding injectable treatment supports areas where the face’s own volume has reduced. Both use prescription-only medicines, so the same rules apply — brands and quantities are not named publicly, and suitability is assessed individually.
Broadly:
- Purpose: line-softening treatments target movement-related lines; volume-adding treatments address volume loss.
- Typical areas: line-softening treatments are most often discussed for the upper face; volume-adding treatments are more often discussed for the mid and lower face.
- Duration: any result from either is temporary, wears off gradually, and varies considerably from person to person.
These are general points, not a recommendation — which, if either, suits you depends on an individual assessment.
How Do These Treatments Work?
The treatment works by temporarily reducing the signals sent to targeted facial muscles so those muscles move less, which can soften the expression lines they create.
Targeting the Muscle Movement Behind Expression Lines
The medicine acts on the nerve endings that trigger muscle contraction. When a small, measured amount is placed into a specific muscle, that muscle relaxes for a time, and the smoother skin over it can look less lined. The effect is localised to the treated muscles.
The treatment is aimed at dynamic lines — the lines that appear with repeated expressions such as frowning, squinting or raising the eyebrows. Areas that are commonly discussed include:
- forehead lines
- frown lines between the eyebrows
- lines around the eyes (crow’s feet)
- bunny lines on the nose
Whether treatment of any area is appropriate is decided individually.
How Long Does It Take to See a Change?
Onset varies between people. Some change may be visible within a few days, and the effect generally develops over about 7–14 days. It tends to be at its most noticeable around two weeks after treatment.
Some people are asked to return for a review at around two weeks so the practitioner can assess how the treatment has settled and discuss whether any adjustment is appropriate. What you notice, and when, can differ from someone else having a similar treatment.
How Long Does Any Result Last?
As a general guide the effect lasts around three to four months for many people, but this is not a guarantee and it varies. Factors that can influence duration include:
- individual metabolism
- the area treated
- the amount used (a clinical decision made individually)
- the strength of the muscle
- previous treatment history
The effect wears off gradually as normal muscle movement returns. Some people find the effect lasts a shorter time, particularly early on. Any decision about repeat treatment should be based on reassessment over time rather than a fixed timetable, and is discussed at review. More frequent treatment is not automatically better and is not without risk.
What These Treatments Are Used For
An injectable treatment of this kind is one option some people consider as part of addressing the appearance of facial lines, alongside non-injectable approaches such as facial rejuvenation treatments. The points below describe the kinds of change the treatment is used for. These are potential outcomes, not guarantees — results vary between individuals, and any potential benefit should be weighed against the risks (covered further below).
Softening the Appearance of Existing Lines
By reducing movement in targeted muscles, the treatment can soften the appearance of some existing expression lines, most commonly around the eyes, forehead and between the eyebrows. Any change develops gradually over the days after treatment rather than immediately. How much difference a person notices — and for how long — varies.
Limiting How Deep Some Lines Become Over Time
Some people choose to have treatment with the aim of limiting how deep certain expression lines become over time. Any effect here is individual and not guaranteed. There is no single “right age” to start, and beginning treatment is a personal decision that should be made after an individual assessment — not because of marketing or social pressure. The treatment is not a substitute for the natural process of ageing and is not something anyone needs.
A Non-Surgical Procedure With Its Own Recovery
The treatment does not involve incisions or general anaesthesia. Many people return to their usual activities the same day, though this is not the case for everyone. Some experience minor redness, swelling or bruising at the injection sites, which usually settles within a day or two. This is a medical procedure, not a casual one: there are aftercare steps to follow and risks to understand (see the risk and aftercare sections below).
A Treatment Planned Around the Individual
An appointment usually begins with an assessment and discussion, followed by the injections if you decide to proceed. The number of injection sites depends on the areas being treated and is decided individually. The change develops gradually over the following days and weeks rather than straight away. Comfort during the procedure differs from person to person, and ways to manage discomfort are discussed beforehand.
Areas of the Face Commonly Discussed
This kind of treatment is discussed in relation to several areas of the face. Whether any area is suitable for you — and whether a particular use is appropriate — is assessed individually, and some uses are more established than others.
Forehead Lines
Horizontal forehead lines form from repeated eyebrow and forehead movement over time. Treatment aims to reduce contraction of the forehead muscle so these lines look softer. Any change usually appears gradually over one to two weeks, and results vary.
Crow’s Feet (Around the Eyes)
These lines radiate from the outer corners of the eyes and become more visible with smiling or squinting. Small, carefully placed injections target the muscle in this area. The aim is to soften the lines while keeping natural expression; how well this is achieved varies between individuals.
Frown Lines (Between the Brows)
The area between the eyebrows can develop vertical lines from repeated frowning, which some people feel gives them a tired or cross look. Treatment targets the muscles responsible for this movement. Careful placement aims to reduce the depth of the lines while retaining natural movement.
Bunny Lines (Nose Wrinkles)
These are the diagonal lines that can appear on the sides of the nose when smiling or scrunching. Small amounts of medicine may be used to soften them. Careful placement is important to avoid affecting nearby muscles.
Lip Lines and Gummy Smile
Fine vertical lines around the mouth, and the amount of gum shown when some people smile, are sometimes discussed at consultation. These areas require particularly careful, conservative dosing, because the muscles around the mouth are involved in speech, eating and drinking, and over-treatment can affect these functions. Whether treatment is appropriate here is an individual clinical decision.
Jaw and Lower Face
Some people ask about the muscle at the angle of the jaw (the masseter). Uses in this area are discussed at consultation and are not appropriate for everyone; some lower-face applications are less established than the common upper-face uses, and any change — for example to the jaw profile — develops gradually over several weeks and varies between individuals. A practitioner will explain what is and is not realistic, and what the alternatives and risks are, before anything is decided.
What to Expect During Treatment
Appointments of this kind are usually short, but they are still a medical procedure involving planning, injections and specific aftercare.
Consultation and Assessment
Our clinicians begin with a facial assessment to understand your concerns and what you are hoping to achieve, and to discuss whether the treatment is appropriate for you. This includes reviewing your medical history — including any medicines or supplements you take — and explaining the benefits, limitations and risks so you can give informed consent.
During this discussion a plan is made for the specific areas being considered. Clinical photographs may be taken to record your starting point and to compare over time; these are for your medical record, not for advertising.
The Process
The area is cleaned first. A topical numbing cream can be used if you would like one. Using fine needles, small amounts of the medicine are placed into the targeted muscles. The number of injections depends on the areas being treated.
The injections themselves usually take around 10–15 minutes. Sensation varies between people — some describe brief pinpricks or mild pressure. If you are anxious about discomfort, discuss it beforehand so it can be managed.
Aftercare and Recovery
Your practitioner will give you aftercare advice specific to your treatment. General guidance often includes, for the first few hours:
- avoid touching, rubbing or massaging the treated areas
- keep your head upright
- avoid strenuous exercise
And for about 24 hours:
- avoid facials or facial massage
- avoid alcohol
- avoid saunas and very hot showers
Minor redness, swelling or bruising at the injection sites usually settles within a day or two. Any change from the treatment generally appears over the following days, with the fuller effect around two weeks. Recovery experiences differ between individuals, and your practitioner is the right person to advise on your situation.
Risks, Side Effects and Safety Considerations
Injectable treatments of this kind have been used in cosmetic medicine for many years, but no medical treatment is risk-free, and having treatment is a considered decision. Risks are lower when treatment is carried out by an appropriately qualified, registered practitioner after an individual assessment, but they are not eliminated. This is why the risks are discussed with you before you consent.
Common Side Effects and Risks
Most side effects are mild and temporary. They can include:
- redness, swelling or tenderness at the injection sites, usually settling within a day or two
- bruising, which can last a little longer
- headache in the first few days, usually mild
Less common effects include temporary drooping of an eyelid or eyebrow, which resolves as the treatment wears off over some weeks, and slight asymmetry of expression. Uncommon effects can include dry or watering eyes, mild flu-like symptoms, or temporary muscle weakness near the treated area.
More serious complications are rare but possible with any injectable treatment. Your practitioner will explain the warning signs to watch for and what to do. If you are ever concerned after a treatment, contact your practitioner.
Who Should Not Have This Treatment
This treatment is not suitable for everyone. It is not recommended if you are pregnant or breastfeeding, and it should be avoided by people with certain neuromuscular conditions (such as myasthenia gravis). Treatment may also not be appropriate for people with:
- an active skin infection at the intended injection site
- a known allergy to any of the ingredients
- certain bleeding or clotting disorders
Some medicines (including certain antibiotics) can interact with the treatment, so it is important to tell your practitioner about everything you take. Active skin conditions in the area may need to be addressed first. Your suitability is assessed individually at consultation — this is a general guide, not a complete list.
How These Treatments Compare With Others
Different cosmetic treatments address different concerns, and no single treatment suits everyone. A line-softening injectable treatment works on movement-related lines; other treatments work in other ways.
Compared With Volume-Adding Treatments
A line-softening treatment reduces muscle movement, whereas a volume-adding treatment supports areas of lost fullness — a different aim, explained further in Understanding Injectable Treatments for Facial Volume and Lines. Any result from either is temporary and varies between individuals, and neither is guaranteed. Volume-adding treatments also use prescription-only medicines, so — as here — brands and quantities are not named publicly, and suitability is assessed at consultation.
Combining Treatments
As part of an individual treatment plan, some people use more than one type of treatment over time to address different concerns. This is always assessed case by case rather than offered as a set package. Depending on the concern, a plan might involve treatments such as laser therapy for skin texture, chemical peels for surface renewal, microdermabrasion for exfoliation, or skin needling for collagen stimulation. Timing between different procedures matters and is planned by your practitioner. What, if anything, to combine is a clinical decision made with you — it is not a requirement, and more treatment is not automatically better.
Considering Treatment in Perth
If the appearance of facial lines is a concern for you, choosing the right provider matters. MedAesthetics has qualified clinics and practitioners across the Perth metropolitan area who provide cosmetic injectable treatments as part of cosmetic medicine.
We suggest choosing a clinic with genuine experience in treatments for facial lines and cosmetic injectable treatments generally, where you are offered a proper consultation and a clear explanation of the benefits, limitations and risks. Useful things to look for include:
- practitioners who are registered with AHPRA (the Australian Health Practitioner Regulation Agency)
- a thorough consultation and individual assessment before any treatment
- clear, honest information about risks, side effects and recovery
- appropriate clinic hygiene and standards
Booking an initial consultation is the sensible first step: it lets a practitioner assess whether a treatment is appropriate for you and explain what it involves. Be cautious about treatment offered by non-medical or unregistered providers, or about decisions made mainly on price. The medicines used are prescription-only and treatment is a considered medical decision — the right choice for you can only be determined through individual assessment. Remember, too, that ageing is a normal process; treatment is a personal choice, not something anyone needs.
