01 · Target
Dynamic wrinkles
Wrinkles visible in expression — forehead lines, frown lines between the eyebrows, crow's feet — respond best to the injection. Static wrinkles, by contrast, are addressed with other approaches.
Face treatments · Medical injections
Botox® and botulinum neurotoxins, supervised by a physician in Laval.
At Photoderma, Botox® injections are performed by Dr Yoel Moyal, the physician in charge of injectable treatments and a specialist in advanced injection techniques. Every session begins with a medical evaluation to establish a personalized plan: area to treat, dosage, follow-up schedule.
- Injecting physician Dr Yoel Moyal
- Approved products Botox® · Dysport®
- Average effect ≈ 4 months
- Return to activities Immediate
Understanding the treatment
How does Botox® act on expression muscles?
Botulinum neurotoxins such as Botox® or Dysport® act as a muscle relaxant. They neutralize the muscle's contraction at the precise spot where the needle is placed: the skin regains a smoothed appearance, the face looks rested.
The injection deactivates, in a localized and temporary way, the nerve signal that tells the muscle to contract. It targets dynamic wrinkles — those shaped by facial expressions — notably the frown lines between the eyebrows. The effect sets in within a few days and then fades gradually over about four months.
02 · Action
Neuromuscular block
The toxin is deposited into the targeted muscle. The contraction eases without affecting skin sensitivity: the face keeps its overall mobility and expression.
03 · Duration
≈ 4 months of effect
The smoothing effect sets in gradually over a few days and then diminishes over about four months, as the muscle regains its usual activity. A new treatment plan can then be discussed.
04 · After the session
Immediate return
The procedure is short, non-surgical, described in clinic as quick and without significant pain. Return to activities is immediate, following the post-care instructions provided by the team.
Clinical protocol
Why a medical evaluation precedes every injection
The clinic applies the rules that govern injections for aesthetic purposes. Every session begins with a meeting with Dr Moyal, who establishes an individualized treatment plan: products, dosage, follow-up cadence.
The former collective prescriptions written for aesthetic purposes no longer apply. Every person, whether an ongoing follow-up or a first session, must undergo a prior medical evaluation before any injection.
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Step one
First contact
Call 450 314-3200 or send a request from the Contact us page. Reception opens your file, notes your goals and offers an evaluation slot.
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Step two
Medical evaluation with Dr Moyal
The physician examines the area to treat, reviews your medical history and current treatments, answers your questions and determines whether the injection is appropriate. They choose the product — Botox® or Dysport® — suited to your situation.
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Step three
Individualized treatment plan
A written plan is established for you: targeted areas, dosage, schedule of appointments to follow. It can be carried out by Dr Moyal themselves or be the subject of an individual prescription issued to a nurse or an auxiliary nurse, with reference to a protocol.
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Step four
Injection and post-care instructions
The injection is performed at the clinic. You receive the instructions for the hours that follow — gestures to avoid, skin care, timeline to review the effect — and a follow-up date is booked in the calendar if necessary.
Dosage remains the key to the outcome: it is meticulously chosen during the session, between you and the physician, according to the area's mobility, muscle strength and the desired effect.
Questions before your session
Frequently asked questions · Botox / Injection
Why does a medical evaluation precede every injection at Photoderma?
Since the update of the rules governing aesthetic injections, the former collective prescriptions no longer apply. Every patient — including follow-ups — must meet Dr Moyal for a prior evaluation. An individualized plan is then established before any treatment.
How long does the Botox® effect last after the injection?
The smoothing effect sets in within a few days and lasts on average four months. It then fades gradually, as the targeted muscle regains its usual activity. A new appointment can then be planned with Dr Moyal based on your treatment plan.
Is the injection painful? Can one resume activities right away?
The session is described in clinic as quick and without significant pain. Return to activities is immediate after the injection. However, the post-care instructions provided by the team — gestures to avoid, skin care — must be followed in the hours after the treatment.
What is the difference between Botox® and Dysport® for frown lines?
Both products are type A botulinum neurotoxins used to relax expression muscles. The choice depends on the area, the desired cadence and your profile. Dr Moyal selects the suitable product during the medical evaluation prior to the treatment.
Who performs the injections at Photoderma clinic?
The injections are performed by Dr Yoel Moyal, the physician in charge of injectable treatments at Photoderma and a specialist in advanced injection techniques. An experienced technician guides you for the preliminary information, appointment booking and post-care follow-up.
Before any injection
Plan your medical evaluation.
Reception arranges a meeting with Dr Moyal before any treatment. You leave the appointment with a personalized treatment plan — and the follow-up slots are booked right afterwards.
Medicard financing available on all medical-aesthetic treatments · medical consultation included.