Wrinkle injectable treatment works by temporarily reducing the activity of the treated muscle, which softens the expression lines caused by repeated muscle movement. At Core Aesthetics, clinical decisions follow a consultation-first approach and conservative treatment philosophy.
Wrinkle injectable treatment is one of the most commonly performed cosmetic procedures in Australia and one of the most searched topics before a first consultation. Understanding how it works helps you make a more informed decision about whether it is appropriate for your situation and what to expect from the process.
The Mechanism: How It Works
Wrinkle injectable treatment uses a prescription medicine that temporarily reduces the activity of the treated muscle. The medicine works by blocking the chemical signal between the nerve and the muscle in the treated area. Without this signal, the muscle cannot contract as strongly, which reduces the repeated creasing of the overlying skin that creates expression lines.
“Good information changes the quality of the decision.”
The effect is temporary. The body gradually breaks down the medicine over a period of months and the muscle returns to its normal level of activity. This is why wrinkle treatment requires regular maintenance rather than being a one time procedure.
Which Lines It Addresses
Wrinkle treatment is most effective for expression lines, which are lines caused by repeated muscle movement. The most commonly treated areas are the forehead, where horizontal lines form from raising the brows, the glabella between the brows where frown lines develop from repeated concentration or frowning, and the outer corners of the eyes where crows feet form from smiling and squinting.
Wrinkle treatment is less effective for static lines that are present at rest regardless of expression, lines caused primarily by volume loss or skin laxity, and texture changes related to sun damage or skin quality. These concerns require different assessment and different approaches.
Read about the specific treatment areas at Core Aesthetics: forehead linesfrown linescrows feet and masseter.
What Treatment Does Not Do
Wrinkle injectable treatment does not add volume to the face. It does not lift the skin. It does not remove lines that are already deeply established at rest. It does not permanently change the muscle and it does not affect skin quality. These distinctions are important for setting realistic expectations before a consultation.
At Core Aesthetics, Corey explains clearly at consultation what treatment can and cannot achieve for your individual face and the specific lines you are concerned about.
The Timeline: What to Expect
Wrinkle treatment does not produce immediate visible results. The effect develops gradually over the 7 to 14 days following treatment as the medicine takes full effect in the treated muscle. The full result is typically visible at two weeks.
Results last approximately 3 to 4 months for most clients before muscle activity gradually returns. Returning for maintenance treatment before the full effect has worn off tends to produce more consistent results over time. Read more about how long wrinkle treatment lasts.
The Clinical Importance of Individual Assessment
Because different people have different muscle strengths, different patterns of movement and different facial structures, wrinkle treatment is not a one dose fits all procedure. The appropriate dose and placement for your individual muscles is determined at consultation through direct assessment of your movement patterns and facial anatomy.
At Core Aesthetics, Corey assesses the full upper face before making any recommendation, including how different areas relate to each other and how treatment in one area may affect adjacent areas. This is why the consultation is the foundation of every appointment rather than a formality before proceeding to treatment.
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Related: Read more about wrinkle treatment at Core Aesthetics and book a consultation at Core Aesthetics, Oakleigh.
General Information Only. This article is general in nature and does not replace a consultation with a qualified health practitioner. Treatment outcomes, suitability and risks vary by individual. Any medical or prescription treatment options can only be discussed and provided where clinically appropriate following an individual assessment.
Safety, Suitability and Clinical Assessment
All aesthetic treatment procedures carry risk. The suitability assessment at consultation identifies any contraindications or relative risk factors specific to your circumstances, including medical history, current medications, previous procedures, and anatomical features that may affect the risk profile for a given treatment area. This information is reviewed before any treatment is planned.
For certain conditions and medications, injectable treatments are not appropriate, or require modification of technique or timing. For others, the treating practitioner may recommend that you consult with your primary healthcare provider before proceeding. These are clinical judgements that can only be made with accurate, complete medical history information, which is why the consultation history taking process is thorough.
Complication recognition and initial management are part of the clinical competency required of practitioners performing injectable treatments under AHPRA’s September 2025 guidelines for nonsurgical cosmetic procedures. The practitioner at Core Aesthetics holds current training in this area and maintains the relevant management supplies on site. Understanding that risk exists and is actively managed is more useful than assuming risk does not exist.
Review Appointments and Ongoing Care
A review appointment at four to six weeks is a standard part of every treatment cycle at Core Aesthetics. The review is not contingent on whether you have concerns, it is a clinical standard that applies to every patient. At review, the practitioner assesses the result across all treated areas, compares the outcome to the pretreatment clinical photographs, identifies any asymmetry or variation in response between sides, and determines whether any adjustment is appropriate within the same treatment cycle.
The review is also where longitudinal data about how your specific anatomy responds to treatment is recorded. Over multiple treatment cycles, this accumulated data allows the practitioner to refine the dosing and approach to better match your individual response pattern, which is one of the most significant advantages of maintaining a consistent treating practitioner rather than moving between clinics.
If you have any concerns in the period between your treatment and your review appointment, contact the clinic directly. The practitioner who treated you has the clinical context to respond accurately to any post treatment question, which is preferable to relying on general online information that may not reflect your specific situation.
What the Assessment Covers
The assessment at the consultation appointment is a face wide evaluation, not a focused review of only the area you have identified as a concern. This full face approach is deliberate: anatomical features interact with each other, and addressing one area in isolation, without understanding the broader facial context, can produce results that look disproportionate even when the individual area was technically treated well.
The practitioner evaluates facial symmetry, bone structure, soft tissue distribution, skin quality, and the dynamic movement patterns associated with each treatment area. The history taking covers your current medications, any previous injectable or surgical procedures, relevant health conditions, and any prior reactions or complications. From this assessment, the practitioner develops a treatment plan that reflects your specific anatomy and circumstances.
Results vary between individuals. What the assessment finds in one patient may be different from what it finds in another patient with a similar presenting concern, which is why templated treatment protocols are not used here. All treatments at Core Aesthetics are consultation based and individually assessed.
The Long-Term Approach
Most patients who pursue aesthetic treatment are thinking about the long term, even when they are not sure how to articulate that. The question is not just “what can I have done today” but “how do I age well over the next decade”. Those are different questions, and they require different conversations.
At Core Aesthetics, the planning conversation is oriented towards the long term. What does gradual maintenance look like over several years? Which areas are the highest priority given current changes? When should treatment begin, and when is it appropriate to wait? What is the realistic trajectory if treatment is maintained consistently versus started later?
These questions are best answered in the context of an individual assessment, because the answers depend on anatomy, rate of change, starting point, and personal goals, all of which vary. The consultation is where that conversation happens. Results vary between individuals, and a long term plan reflects that variability rather than applying a standard approach.
Understanding How Wrinkle Treatment Works at a Cellular Level
Wrinkle treatment uses a prescription injectable that temporarily interrupts the signal between the nerve and the muscle. The active substance blocks the release of acetylcholine at the neuromuscular junction, the chemical messenger that triggers muscle contraction. Without this signal, the targeted muscle relaxes. The skin above it, no longer creased by repeated movement, gradually softens.
This effect is temporary because the body regenerates the nerve terminals that were blocked. Axonal sprouting, the regrowth of nerve endings, is the mechanism by which muscle activity slowly returns, typically over three to five months. The pace of recovery varies between individuals and between treatment areas.
Understanding this mechanism matters for treatment planning. wrinkle treatment works on muscles. It does not replace volume, improve skin texture, or address structural concerns. For lines that are visible at rest, not just during expression, a different assessment is needed, and volume treatment or other approaches may be more appropriate.
The Role of Facial Mapping in Wrinkle Treatment
Effective wrinkle treatment begins with a detailed understanding of how a specific person’s face moves. The same treatment applied to two different people can produce very different outcomes because the underlying anatomy, muscle size, attachment points, the relationship between muscles, varies considerably from person to person.
At Core Aesthetics, the pretreatment assessment includes observing movement patterns, identifying which muscles are contributing to the lines of concern, and understanding how treatment in one area might influence adjacent muscles. For example, treating the forehead without accounting for the brow position can produce a result that looks heavy or drops the brow unexpectedly. Treatment planning that ignores these relationships is a common source of dissatisfaction.
Facial mapping is not a visual tool, it is a clinical one. The goal is to understand function, not just appearance. A treatment plan designed around function is more likely to produce a result that looks natural and balanced, because it works with how the face moves rather than simply suppressing whatever is visible.
What Results Can Realistically Be Expected
Wrinkle treatment is effective at softening dynamic lines, lines that appear during expression. For most people, consistent treatment over time produces a visible reduction in the depth of these lines even at rest, as the skin is given repeated periods of reduced mechanical stress.
However, there are realistic limits. Lines that have been present for many years and are deeply etched into the skin may not fully resolve with wrinkle treatment alone. Very deep static lines, visible without any movement, often require additional approaches, which are discussed at consultation. wrinkle treatment cannot restore lost volume, improve skin quality, or address structural changes associated with ageing.
Results vary between individuals. Factors that influence outcomes include muscle mass and activity, metabolic rate, skin quality, and the specific area treated. At Core Aesthetics, results are reviewed at a follow up appointment at four to six weeks to assess the outcome and determine whether any adjustment is appropriate.
Safety, Complications, and Clinical Oversight
Wrinkle treatments are among the most extensively studied injectable treatments in cosmetic medicine. Serious adverse events are rare when treatment is performed by a trained, registered practitioner working within a clinical framework. The most common side effects are minor and temporary: bruising, redness, or tenderness at injection sites.
More significant complications, such as ptosis (drooping of the eyelid or brow), asymmetry, or an overcorrected result, do occur and are related to dose, placement, and individual anatomy. These risks are explained at consultation, documented in the consent process, and managed at the follow up appointment if they arise. At Core Aesthetics, Corey provides emergency contact protocols and clear instructions for who to contact if a concern develops between appointments.
Certain health conditions and medications affect suitability for wrinkle treatment. A full medical history review is part of every consultation. Treatment is not offered where there is clinical uncertainty about safety, and patients are referred to their treating doctor when appropriate.
Clinical accountability and how Wrinkle dosing is decided
The wrinkle treatment guidance in “How wrinkle Treatments Work” is informed by how Corey Anderson, AHPRA registered nurse (NMW0001047575), approaches neuromodulator dosing at Core Aesthetics: low to moderate units, conservative on first time treatments, and reviewed at two weeks before any top up. wrinkle treatment is a neuromuscular intervention, and the same units can read very differently on two patients depending on muscle mass, baseline expression patterns, metabolism, and prior treatment history. Results vary between individuals, which is why the two week review appointment exists and why dosing decisions evolve across the first three or four treatments rather than being set once.
Specific to how wrinkle treatments work: wrinkle dosing decisions at Core Aesthetics start conservatively, low to moderate units for first time patients, with a two week review built into the protocol so any top up is informed by how the patient actually responded rather than by a generic dosing chart. Some patients are highly sensitive responders and need less than the typical starting dose; some are slower responders and benefit from a top up at the two week mark. The body of literature on neuromodulator dosing supports the two week review as a clinical reference point, not a marketing concept. The wrinkle treatment Melbourne page covers a related wrinkle decision in more depth.
Patients reading this page who want to verify Corey Anderson’s AHPRA registration can do so directly on the AHPRA public register at ahpra.gov.au using registration number NMW0001047575. The Core Aesthetics clinic operates from 12A Atherton Road, Oakleigh VIC 3166, Tuesday to Saturday, by consultation appointment. All new patient treatment at Core Aesthetics follows a structured clinical consultation, consistent with the September 2025 AHPRA cosmetic procedures guidelines. Treatment may be scheduled for the same day as consultation or at a subsequent appointment, depending on clinical assessment and individual circumstances. Patients with questions about the content on this page can raise them at consultation; the practitioner is happy to walk through any clinical reasoning that the written content does not fully capture. Results vary between individuals, and the consultation is the appropriate place to discuss what those individual variations mean for a specific person’s treatment plan.
Is this for you?
Consider booking a consultation if
- You are 18 or older and in good general health
- You have visible expression lines, forehead creases, frown lines, or crows feet, and want to understand your clinical options
- You prefer a consultation based approach where treatment follows individual assessment
- You want to understand how wrinkle treatment might fit into a longer term facial plan
This may not be for you if
- You are pregnant, trying to conceive, or breastfeeding
- You have a known neuromuscular condition such as myasthenia gravis or Lambert-Eaton syndrome
- You have an active skin infection, inflammation, or unhealed wound in the potential treatment area
- You are currently taking aminoglycoside antibiotics or other medications that potentiate neuromuscular blockade
- You are under 18 years of age
Suitability is confirmed at consultation. This list is general guidance, not a substitute for clinical assessment.
Frequently asked questions
What happens at the cellular level when wrinkle treatment is placed?
The injectable compound temporarily blocks the chemical signal between nerves and muscle cells in the treated area. With the signal interrupted, the muscle cannot contract as forcefully. Reduced contraction over weeks softens the dynamic lines those movements produce.
Is the effect permanent?
No. The treatment effect is temporary. The body gradually restores the chemical signal over months and the muscle returns to baseline activity. Retreatment intervals settle into an individual pattern over the first one to two cycles. Results vary between individuals.
Does the muscle weaken permanently with repeated treatment?
Long term repeated treatment can lead to gradual muscle volume reduction in some clients (similar to disuse from immobilisation), particularly in larger muscles. For smaller facial muscles this effect is more variable. Each client’s response is observed across cycles. Results vary between individuals.
Can the body build resistance to wrinkle treatment?
A small percentage of clients develop antibodies that reduce the effectiveness of the treatment over time. This is more associated with very high doses and frequent retreatment. Conservative dosing and appropriate intervals reduce this risk. Results vary between individuals.
Why does wrinkle treatment not work on all wrinkles?
Wrinkle treatment addresses dynamic lines produced by muscle movement. Static lines etched into the skin from years of repeated movement, sun damage, or skin elasticity change may not soften with this treatment alone. The consultation distinguishes between types. Results vary between individuals.
How does this treatment differ from facial volume treatment?
Wrinkle treatment reduces muscle activity that produces lines. Facial volume treatment adds volume or structural support beneath the skin. They address different mechanisms and often work alongside each other in a combined plan when the assessment supports it.
Who decides wrinkle dosing at Core Aesthetics?
Wrinkle dosing decisions are made by Corey Anderson, AHPRA registered nurse (NMW0001047575), under nurse prescribing scope. Core Aesthetics starts conservatively for first time patients with low to moderate units, then reviews response at two weeks before any top up. Some patients are highly sensitive responders; others need a slightly higher dose to reach the same observable effect. Results vary between individuals, and the two week review is built into the protocol for that reason.
How is the right number of units determined?
Unit count is decided at consultation based on muscle mass, baseline expression patterns, prior treatment history, and the patient’s goals. Generic dosing charts are a starting point, not a final answer. Core Aesthetics tends to start lower than typical for first time patients, with a two week review to assess response and decide on any top up.
Should I have wrinkle treatment if I want to prevent lines rather than treat existing ones?
Preventative treatment may be considered when muscle activity is consistently creating early dynamic lines, but whether it is appropriate depends on individual anatomy, age, skin quality and treatment goals. A clinical assessment is required to determine whether treatment makes sense at this point, and what dose and timing would be appropriate for your situation.
Is it safe to have wrinkle treatment while taking blood-thinning medications or supplements?
Certain medications and supplements, including aspirin, ibuprofen, fish oil, vitamin E and some herbal supplements, can increase bruising risk after any injectable treatment. You will be asked about these at your consultation. In most cases, treatment can proceed, though timing and approach may be adjusted. Always disclose your full medication and supplement list before any injectable appointment.