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Botulinum Toxin for Shoulder: Costs, Benefits, and Patient Eligibility

Side view woman with hydrated skin

Botulinum toxin, widely recognised for its aesthetic applications, has expanded beyond traditional facial treatments to offer innovative solutions for body contouring, including shoulder slimming. This post explores the aesthetic use of botulinum toxin for slimming the shoulders, providing insights into its benefits, costs, and patient eligibility. We speak to Dr Justin Boey, an international medical speaker and certified botulinum toxin expert who trains other doctors and dentists in the Asia-Pacific region. This guide aims to inform those interested in achieving slimmer, more defined shoulders through this non-invasive method.

What is Botulinum Toxin?

Botulinum toxin, a potent neurotoxic protein, has been utilised in various medical and cosmetic procedures due to its ability to induce temporary muscle relaxation. Originally used for treating muscle spasms and other neurological conditions such as strabismus and blepharospasm, it quickly became a valuable tool in the medical field.

Its cosmetic applications have upgraded over the years, particularly in facial aesthetics, where it is widely used to reduce wrinkles, fine lines, and other signs of ageing. This is achieved by temporarily paralysing the underlying muscles, resulting in a smoother and more youthful appearance.

Recently, its use has extended beyond facial treatments to include shoulder slimming. This innovative application involves injecting the toxin into specific muscles of the shoulders, thereby reducing their width through targeted muscle relaxation. This procedure is becoming increasingly popular among individuals seeking a more streamlined and proportionate silhouette.

How Does Botulinum Toxin Achieve Shoulder Slimming?

The primary mechanism of action for botulinum toxin involves blocking the release of acetylcholine, a neurotransmitter responsible for muscle contraction. When injected into specific shoulder muscles, such as the trapezius muscle, it reduces muscle activity, leading to a slimmer appearance over time. The process involves multiple injections administered by an aesthetic practitioner, targeting areas where muscle bulk contributes to shoulder width.

Benefits of Shoulder Slimming with Botulinum Toxin

Undergoing shoulder slimming with botulinum toxin injections offers several advantages:

  • Slimmer and more defined shoulders
  • Potential reduction in neck and shoulder pain or tension
  • Enhanced jawline and neckline definition (where applicable)

These benefits underscore the appeal of botulinum toxin as an effective non-surgical solution for those seeking aesthetic improvements in shoulder contouring.

Costs of Botulinum Toxin for Shoulder Slimming

The cost of botulinum toxin shoulder slimming varies based on several factors:

Dosage Needed

The amount of botulinum toxin required varies based on individual muscle bulk, the severity of the treated condition, and the desired aesthetic results. A personalised consultation with a medical professional is necessary to determine the appropriate dosage.

Clinic Location

Prices for botulinum toxin injections may change depending on the geographic location. Urban centres or clinics in high-demand areas tend to charge higher fees. Additionally, the clinic’s prestige and reputation can also influence pricing.

Practitioner’s Expertise

Fees for botulinum toxin treatments can vary significantly depending on the practitioner’s experience, qualifications, and reputation in the field. Highly experienced practitioners with specialised training may charge more, reflecting their expertise and success rates.

Below is a cost summary table:

Potential Risks and Side Effects

While botulinum toxin treatments are generally safe and effective for reducing wrinkles and other signs of ageing, potential risks and side effects can occur. It is important to be aware of these possibilities before undergoing the procedure. Common side effects include:

  • Temporary bruising or redness at the injection site usually resolves within a few days.
  • Headache may occur shortly after the treatment and typically subsides on its own.
  • Difficulty swallowing is a rare but serious side effect that may require medical attention.

Discussing these potential risks with your aesthetic practitioner before treatment is vital to ensure you are fully informed and can make the best decision for your health and beauty goals. Always choose a qualified and experienced professional to minimise the risk of complications.

Who is Eligible for Shoulder Slimming with Botulinum Toxin?

Suitable candidates for shoulder slimming with botulinum toxin typically include individuals who:

  • Seek to reduce shoulder width for aesthetic reasons, such as wanting a more balanced and proportionate appearance.
  • Experience discomfort due to bulky muscles, which may cause pain or restrict shoulder movement during daily activities or exercise.
  • They are in good overall health, ensuring they can safely undergo the procedure without adverse effects and achieve the best possible results.

Safety Considerations

Those who are pregnant, breastfeeding, or have certain neuromuscular conditions may not be eligible for this treatment. Conditions such as myasthenia gravis, Lambert-Eaton syndrome, and other neuromuscular disorders can increase the risk of complications. Therefore, a thorough consultation with an experienced aesthetic professional is necessary to assess individual health backgrounds and determine suitability for the treatment. This ensures that the procedure is both safe and effective for each individual.

Botulinum Toxin Shoulder Slimming Treatment Procedure

Close up studio portrait of brunette woman with clean skin with closed eyes, isolated over white

The shoulder slimming procedure with botulinum toxin involves the following steps:

  1. Preparation: This stage involves a thorough consultation and assessment of the trapezius muscle by a medical professional to determine the areas requiring treatment.
  2. Injection: Multiple small injections are carefully administered into the trapezius muscle or other targeted areas to ensure optimal distribution of the treatment.
  3. Duration: The entire procedure typically lasts between 30 to 45 minutes, depending on the specifics of the individual case and the areas being treated.
  4. Post-Injection: Following the injections, patients are monitored for any immediate adverse reactions to ensure their safety and well-being before they are allowed to leave.

Is the shoulder slimming procedure with botulinum toxin painful?

Patients may experience minimal discomfort akin to a pinprick during the injection. This sensation is typically brief and manageable. To further ensure patient comfort, practitioners often use numbing agents or ice packs to minimise discomfort. In some cases, they may also apply a topical anaesthetic before the injection or gently massage the area afterwards to alleviate any residual soreness. These additional steps help make the procedure as comfortable as possible for the patient.

How long do the results of shoulder slimming with botulinum toxin last?

The results of shoulder slimming with botulinum toxin generally last 3-6 months. Factors such as dosage, individual metabolism, and muscle activity can influence the longevity of the effects. Higher dosages may result in longer-lasting outcomes, but this varies from person to person. Additionally, individuals with higher muscle activity may notice a quicker return to baseline than those with lower muscle activity. Regular follow-up treatments are often recommended to maintain desired results.

How often will I need to repeat the treatment to maintain the slimming effect?

Treatments should be repeated every 3-6 months to maintain the slimming effect, as the aesthetic practitioner advises. This recommended frequency helps to optimise the results and ensure the desired look is consistently achieved. Regular follow-up sessions are crucial, as they allow the practitioner to monitor progress, make necessary adjustments to the treatment plan, and provide ongoing guidance. These sessions ensure sustained results and help clients stay on track with their aesthetic goals, ultimately enhancing their overall satisfaction and confidence.

Post-treatment of Shoulder Slimming with Botulinum Toxin

After a shoulder slimming procedure with botulinum toxin, it is essential to follow the post-treatment care instructions provided by the aesthetic practitioner. This includes the following:

  • Avoiding strenuous activities for 24 hours, post-procedure is crucial to ensure proper healing and reduce the risk of complications. This includes not participating in heavy lifting, intense workouts, or physically demanding tasks.
  • Refraining from massaging or applying pressure to the treated area is essential to prevent displacement or irritation. This means you should be gentle while washing your face and avoid sleeping on the treated side.
  • Following any additional aftercare instructions provided by the practitioner, such as using prescribed topical treatments or attending follow-up appointments, will aid in achieving the best possible results and maintaining the treated area’s health.

Botulinum Toxin vs. Other Aesthetic Shoulder Treatments

Alternative treatments for aesthetic shoulder adjustments include liposuction and cryolipolysis. Below is a comparative table:

How to Decide if Shoulder Slimming is Right for You?

Choosing whether shoulder slimming with botulinum toxin treatment is suitable involves:

  • Consulting with an aesthetic practitioner, such as Dr. Justin Boey at Sozo Aesthetic Clinic, to assess individual goals and eligibility.
  • Evaluating personal aesthetic goals, expectations, and potential benefits versus risks.


Botulinum toxin offers a promising solution for those seeking to slim down their shoulders and enhance shoulder aesthetics. By understanding the benefits, costs, patient eligibility, and treatment process, individuals can make informed decisions about incorporating this procedure into their aesthetic regimen. Contact our professional aesthetic practitioner for personalised advice and consultations, who can guide you toward achieving more defined and slimmer shoulders.


Medical Director

After graduating from the National University of Singapore, Dr Boey’s journey in aesthetics brought him to esteemed institutions such as Harvard Medical School, American Academy of Aesthetic Medicine and Queen Mary University of London in diverse cities like Seoul, London, Boston and New York.