Injections of neuromodulators (Botox or Dysport)

What Is Botulinum Toxin?

Botulinum toxin is a purified protein derived from the culture of Clostridium botulinum bacteria. Its medical use was first developed for treating conditions such as strabismus, facial spasms, and eyelid tics. During these treatments, a reduction in wrinkles around the treated eye was observed, paving the way for its aesthetic use in diminishing facial lines. Before-and-after results around the eyes can be very revealing, though outcomes vary from person to person.

The mechanism of the neuromodulator Botox lies in its ability to relax targeted facial muscles. By acting at the neuromuscular junction, the toxin gradually reduces repetitive movements that cause wrinkles, allowing patients to achieve a softer, more refreshed appearance.

Detailed comparison between Botox, Dysport and Nuceiva

The difference between Botox, Dysport, and Nuceiva lies mainly in their formulation, delivery, and kinetics of action, although all three products are forms of botulinum toxin used in cosmetic medicine.

In terms of how long it takes for the effects to appear, Botox generally works within 3 to 7 days, while Dysport can show results slightly faster, often within 2 to 5 days. Nuceiva has a similar onset time, although the response may vary depending on muscle physiology and the area treated. This difference explains why some patients perceive Botox as having a more gradual and sometimes more predictable effect than Dysport.

In terms of duration of action, in clinical practice, the duration of action of Botox, Dysport, and Nuceiva varies depending on the individual, the area treated, and the muscle response. The duration of action of Dysport compared to Botox may seem slightly shorter or longer depending on the individual, which highlights the importance of personalized follow-up.

The diffusion of the product is another key factor. Dysport has a slightly wider diffusion, which can be advantageous for treating large areas such as the forehead. Botox, on the other hand, is often preferred for more precise corrections, particularly in the glabella or crow's feet. Nuceiva falls between the two in terms of diffusion.

The choice of botulinum toxin product also depends on facial anatomy, muscle strength, and the patient's aesthetic goals. For Canadian patients, the cost-benefit analysis is based more on the number of units required than on the price per unit. Certain differences in formulation may influence product diffusion and the clinical response observed, depending on individual characteristics.

Indications for Botulinum Toxin on the Face

Expression lines appear naturally as a result of facial movements. In younger individuals, the skin smooths out after each contraction; over time — often starting in the thirties — elasticity decreases and more permanent creases begin to form.

The main areas treated are typically located in the upper third of the face:

• Horizontal forehead lines (the number of units varies depending on muscle strength and treatment goals).
  
• Frown lines (glabellar wrinkles) between the eyebrows.
  
• Crow’s feet around the outer corners of the eyes.
  

Because of their versatility, neuromodulators such as Botox and Dysport can also address early signs of aging and help prevent deeper lines from forming.
Other Treatable Areas

• Gummy smile – caused by hyperactivity of the upper lip elevators (neuromodulators, Botox) can naturally reduce gum visibility.
  
• Smoker’s lines – fine vertical wrinkles around the lips.
  
• Marionette lines – downward folds at the corners of the mouth caused by repetitive facial movement.
  
• Bunny lines – small wrinkles on the sides of the nose.
  
• Masseter muscle hypertrophy – when overdeveloped, Dysport or Botox injections can slim the lower face and refine the jawline, an effect known as “facial slimming.”

Procedure in Practice

Your professional will observe your facial expressions and skin mobility to determine the areas to be treated. After cleansing and disinfecting the skin, small Botox injections are made into specific muscles responsible for wrinkle formation, sometimes intradermally, depending on the indication

The desired effect begins to appear progressively — around day 3, a subtle relaxation is often noticed, with optimal results visible between 10 to 15 days after treatment. Many patients wonder what to expect after 3 days of (Botox). At that stage, you may notice a mild softening of the treated muscles, though the full effect typically appears after about two weeks.

Benefits of Botulinum Toxin

Botox and Dysport are clinically established neuromodulators with a proven safety profile when performed by a qualified professional. They can help prevent the formation of deeper wrinkles in younger adults and soften existing expression lines in more mature skin. In cases of pronounced wrinkles, Botox can be combined with hyaluronic acid for a comprehensive facial rejuvenation approach — the toxin relaxes the muscles, while the filler smooths and restores volume for a more youthful, natural look.

Tips for a successful treatment

BEFORE: If possible, and according to your professional’s advice, avoid medications that promote bleeding for about a week before your session. The treatment can be performed on both tanned and untanned skin. Ideally, arrive with a clean face; if needed, makeup removal will be provided.

DURING: The session is generally well-tolerated and lasts approximately 15 to 30 minutes, depending on the number of areas treated.

AFTER: Mild, temporary effects may occur — such as headaches, redness, minor swelling, or small bruises at the injection sites.

Following your Dysport or Botox session, your professional will provide personalized post-care instructions to ensure the best possible outcome.

Expected results

Initial improvements are usually visible by day 3, with continued enhancement up to day 14. Wrinkles become less noticeable, and the face appears more relaxed — without any “frozen” look. A follow-up appointment is typically recommended 2 to 3 weeks after the procedure to assess results. The effects generally last 4 to 6 months, after which a new Botox session may be considered to maintain optimal outcomes. Over time, dosage adjustments become more precise, and the muscle movements responsible for wrinkles tend to diminish, extending the duration of results.