High-intensity Focused Ultrasound

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Overview

High-intensity focused ultrasound is a new FDA-approved skin rejuvenation procedure that uses ultrasound energy to promote collagen production in the skin, used to tighten the skin, reduce fine lines and wrinkles, improve sun damage, etc. You can see improvements after only one session, however, 2-6 treatment sessions, spaced 4 weeks apart, can bring about the best results. The results can last up to three years. You can have touch-up sessions annually to maintain the desired effects.

Everything About High-intensity Focused Ultrasound

Published on 29 Apr 2023 | Last updated on 28 Nov 2022

By Medical Content TeamMedically Reviewed by Dr. Thierry Cahuzac

Fact-checked

High-intensity focused ultrasound (HIFU) is a non-invasive medical procedure that uses focused ultrasound waves to generate heat and target specific tissues in the body. It is primarily used in the field of medicine for therapeutic purposes, but it also has applications in the cosmetic industry, the latter being the main focus of this article. In the cosmetic field, HIFU is commonly used for non-surgical facelifts and skin tightening. By delivering focused ultrasound energy to the deep layers of the skin, HIFU stimulates the production of collagen, a protein that helps maintain the skin's elasticity and firmness. This promotes skin tightening and lifting effects, resulting in a more youthful appearance. The procedure typically involves the use of a handheld device that emits ultrasound waves. The device is guided over the target area, and the ultrasound waves penetrate the skin to reach the desired depth. HIFU is generally considered safe and well-tolerated, with minimal downtime and side effects compared to surgical alternatives.

High-intensity focused ultrasound has various applications in the cosmetic field. Here are some of the main uses:

  • Non-surgical facelift: HIFU is used for non-invasive skin tightening and lifting of the face and neck. By stimulating collagen production in deeper layers of the skin, HIFU can improve skin laxity and reduce the appearance of wrinkles and sagging.
  • Body contouring: HIFU can be used to target specific areas of the body, such as the abdomen, thighs, and arms, for non-invasive fat reduction and body sculpting.
  • Skin rejuvenation: HIFU can improve skin texture and tone by promoting collagen synthesis, reducing fine lines, and tightening the skin.
  • Cellulite reduction: HIFU has been explored as a potential treatment for reducing the appearance of cellulite by targeting the underlying connective tissue.

It is important to note that the specific applications of HIFU may vary depending on the country, regulatory approvals, and individual healthcare providers or cosmetic practitioners. Consulting with a qualified medical or cosmetic professional is crucial to determine the suitability of HIFU for a particular condition or cosmetic concern.

For cosmetic purposes, high-intensity focused ultrasound works by delivering focused ultrasound waves to specific layers of the skin, promoting skin tightening, lifting, and rejuvenation. Here's how HIFU works:

  • Ultrasound energy delivery: A handheld device or applicator is used to emit high-intensity ultrasound waves. The device is guided over the target area, and the ultrasound waves are focused on specific depths within the skin.
  • Targeting the deep layers: HIFU is designed to reach deeper layers of the skin, including the superficial muscular aponeurotic system (SMAS) and the deep dermis. The SMAS is a layer beneath the skin that is typically targeted during surgical facelift procedures. By reaching these deeper layers, HIFU can stimulate collagen production and initiate a natural healing response.
  • Collagen stimulation: The focused ultrasound waves generate controlled heating at the targeted depth. This heat energy causes the existing collagen fibers to contract, leading to immediate tightening effects. Additionally, the thermal energy triggers a wound-healing response, stimulating the production of new collagen over time.
  • Tissue remodeling: The newly generated collagen helps to strengthen and support the skin structure, resulting in improved elasticity, firmness, and a lifted appearance. As collagen production continues in the weeks and months following the treatment, the full effects of skin tightening and rejuvenation become more noticeable.
  • Selective treatment: One of the advantages of HIFU is its ability to precisely target specific areas of concern without affecting the surrounding tissues. This ensures that the energy is focused only on the desired treatment area, minimizing the risk of damage to adjacent structures.

The effects of HIFU treatment are gradual and can continue to improve over several months as collagen remodeling continues. Multiple treatment sessions may be recommended depending on individual needs and goals.

High-intensity focused ultrasound can be suitable for various individuals seeking non-surgical skin tightening, lifting, and rejuvenation. Here are some factors that make someone a potential candidate for cosmetic HIFU:

  • Mild to moderate skin laxity: HIFU is most effective for individuals with mild to moderate skin laxity or sagging. It can help tighten loose skin and improve overall firmness.
  • Facial wrinkles and fine lines: Candidates may have facial wrinkles, fine lines, or creases, particularly in areas such as the forehead, around the eyes, mouth, or neck.
  • Age-related skin changes: HIFU can be beneficial for individuals experiencing age-related changes in the skin, including loss of elasticity, reduced collagen production, and the appearance of jowls or drooping skin.
  • Desire for non-invasive treatment: Candidates who prefer non-invasive procedures and want to avoid surgery or extensive downtime may find HIFU appealing.
  • Good general health: Candidates should generally be in good overall health, without any underlying medical conditions that may interfere with the treatment or healing process.
  • Realistic expectations: Candidates should have realistic expectations about the results of HIFU. While it can provide noticeable improvements, the outcomes may vary depending on individual factors.

It's important to note that specific candidacy requirements may vary depending on individual factors, such as skin type, medical history, and treatment goals. A personalized consultation will help determine whether HIFU is a suitable option and guide the development of an appropriate treatment plan.

The procedure for high-intensity focused ultrasound may vary slightly depending on the specific device and the area being treated. However, here is a general overview of how the HIFU procedure is typically performed for cosmetic purposes:

  • Consultation: Before the procedure, you will have a consultation with a qualified cosmetic practitioner. During this consultation, they will assess your skin condition, discuss your goals and expectations, and determine if you are a suitable candidate for HIFU treatment.
  • Preparation: On the day of the procedure, the treatment area will be cleansed, and a gel or ultrasound coupling agent may be applied to the skin. This gel helps to facilitate the transmission of ultrasound waves and enhances their effectiveness.
  • Targeted treatment: The cosmetic practitioner will use a handheld device that emits focused ultrasound waves. They will carefully guide the device over the target area, focusing on specific depths within the skin. The depth and intensity of ultrasound energy may be adjusted based on the treatment goals and individual factors.
  • Sensations and comfort: During the procedure, you may feel sensations of heat and tingling as the ultrasound energy is delivered to the deeper layers of the skin. Some people may experience mild discomfort, but the procedure is generally well-tolerated. If needed, local anesthesia or pain medication can be administered to ensure your comfort.
  • Treatment duration: The duration of the procedure can vary depending on the size of the treatment area and the specific device being used. It can range from 30 minutes to a couple of hours.
  • Immediate and gradual effects: After the treatment, you may notice immediate tightening and lifting effects due to the contraction of existing collagen fibers. However, the full benefits of HIFU will develop gradually over time as the production of new collagen is stimulated. Most individuals require multiple treatment sessions spaced several weeks apart to achieve optimal results.

It's important to note that the specific details of the HIFU procedure may vary depending on the device used and the treatment area. Your cosmetic practitioner will provide you with detailed instructions and guidance specific to your treatment plan.

Keep in mind that HIFU should be always performed by trained professionals in a medical or cosmetic setting. The specific protocols and techniques may vary depending on the device used and the area being treated. Consulting with a qualified cosmetic practitioner is crucial to determine the suitability and expected outcomes of HIFU for a particular cosmetic concern.

Before undergoing a high-intensity focused ultrasound (HIFU) procedure, here are some things you can expect:

  • Consultation: You will have a consultation with a qualified cosmetic practitioner. During this session, you will discuss your goals, concerns, and expectations for the treatment. The practitioner will assess your skin condition, determine if you are a suitable candidate for HIFU, and explain the procedure, including potential risks and benefits.
  • Medical history and assessment: The practitioner will inquire about your medical history, including any underlying health conditions, previous cosmetic treatments, or allergies. They may also evaluate the specific areas you wish to target with HIFU and assess the current condition of your skin.
  • Pre-treatment instructions: You will receive specific instructions to follow before the procedure. This may include avoiding certain medications, supplements, or skincare products that could interfere with the treatment or increase the risk of complications. You might also be advised to refrain from sun exposure or tanning before the procedure.
  • Skin preparation: On the day of the procedure, the treatment area will be cleansed to remove any dirt, oils, or makeup. The practitioner may apply a gel or ultrasound coupling agent to the skin. This gel helps to enhance the transmission of the ultrasound waves and improve the effectiveness of the treatment.
  • Pain management: Depending on the individual and the specific treatment area, the practitioner may offer pain management options. HIFU is generally well-tolerated, but if needed, local anesthesia or pain medication can be administered to ensure your comfort during the procedure.
  • Consent and discussion: Before the procedure, you will be asked to sign a consent form, indicating that you understand the nature of the treatment, its possible risks, and the expected outcomes. This is an opportunity to ask any remaining questions or clarify any concerns you may have.
  • Treatment plan: The practitioner will discuss the recommended treatment plan, including the number of sessions needed and the interval between treatments. They will also provide information on what to expect during and after the procedure, including potential side effects and post-treatment care.

It's important to follow the instructions provided by your cosmetic practitioner, attend all necessary appointments, and communicate openly about your expectations and concerns. This will ensure that you are fully prepared for the HIFU procedure and have a positive treatment experience.

After undergoing a high-intensity focused ultrasound procedure, here are some things you can expect:

  • Immediate effects: You may notice immediate tightening and lifting effects in the treated area. This is due to the contraction of existing collagen fibers as a result of the ultrasound energy. However, the full effects of HIFU will develop gradually over time as new collagen production is stimulated.
  • Temporary side effects: It is common to experience mild redness, swelling, or tenderness in the treated area immediately after the procedure. These side effects are usually temporary and should subside within a few hours to a few days. Applying a cool compress or taking over-the-counter pain relievers can help alleviate any discomfort.
  • Resume daily activities: HIFU is a non-invasive procedure, and there is typically minimal downtime. You can usually resume your daily activities immediately after the treatment. However, it is advisable to avoid excessive sun exposure, rigorous exercise, and saunas or hot baths for a few days following the procedure.
  • Post-treatment skincare: Your cosmetic practitioner may provide specific instructions for post-treatment skincare. These may include using gentle cleansers, avoiding harsh skincare products, and applying moisturizers or serums to keep the treated area hydrated. It is important to follow these instructions to optimize the healing process and maximize the results.
  • Multiple treatment sessions: Depending on your specific treatment plan and desired outcomes, you may require multiple HIFU sessions. These sessions are typically spaced several weeks apart to allow for collagen remodeling and gradual improvement of the treated area. Your cosmetic practitioner will guide you on the recommended number of sessions for optimal results.
  • Long-term results: The full benefits of HIFU develop gradually over time as collagen production is stimulated and the skin continues to tighten and rejuvenate. The results can last for several months to a year, depending on individual factors such as age, skin condition, and lifestyle. Periodic maintenance treatments may be recommended to sustain the desired outcomes.
  • Follow-up appointments: Your cosmetic practitioner may schedule follow-up appointments to assess your progress, monitor the results, and make any necessary adjustments to your treatment plan. These appointments allow for ongoing evaluation and ensure that you are satisfied with the outcomes of the HIFU procedure.

It is important to communicate with your cosmetic practitioner if you have any concerns, unusual side effects, or questions during the post-procedure period. They will provide guidance, address your concerns, and support you in achieving the best possible results from your HIFU treatment.

The cost of high-intensity focused ultrasound treatment can vary depending on several factors, including the geographic location, the specific area being treated, the reputation and expertise of the provider, and the number of treatment sessions required.

In general, the cost of a single HIFU treatment session can range from a few hundred to a few thousand dollars. The total cost may increase if multiple treatment sessions are recommended for optimal results. Additionally, if HIFU is combined with other cosmetic procedures or treatments, the overall cost may be higher. It's important to keep in mind that cost should not be the sole determining factor when choosing a provider for HIFU treatment. The expertise, qualifications, and reputation of the practitioner are also crucial considerations. It is advisable to schedule a consultation to discuss your specific needs and treatment goals and obtain a personalized cost estimate based on your unique circumstances.

High-intensity focused ultrasound is generally considered a safe and well-tolerated cosmetic procedure. However, like any medical or aesthetic treatment, there are potential risks and side effects to be aware of. Here are some commonly reported risks and side effects associated with HIFU:

  • Mild discomfort: During the procedure, some individuals may experience mild discomfort, tingling, or a warm sensation as the ultrasound energy is delivered to the deeper layers of the skin. However, this discomfort is typically temporary and should subside shortly after the treatment.
  • Redness and swelling: It is common to experience temporary redness and swelling in the treated area immediately after the procedure. This is a normal inflammatory response and typically resolves within a few hours to a few days.
  • Tenderness or sensitivity: The treated area may feel tender or sensitive to touch for a short period following the procedure. This sensitivity is usually temporary and should subside as the skin heals.
  • Bruising: In some cases, minor bruising may occur at the treatment site. This is typically mild and resolves on its own within a few days to a week.
  • Rare adverse events: While rare, there is a small risk of more serious adverse events, such as burns, blisters, or skin damage. These complications are typically associated with improper technique, incorrect settings, or inadequate cooling measures during the procedure. To minimize the risk of such events, it is essential to choose a qualified and experienced cosmetic practitioner.
  • Post-treatment effects: The full effects of HIFU develop gradually over time as collagen production is stimulated. It is important to have realistic expectations and understand that results may vary from person to person. The extent of improvement and duration of results can depend on factors such as individual skin characteristics, age, lifestyle, and overall health.

It is crucial to consult with a qualified cosmetic practitioner who will assess your suitability for the procedure, discuss potential risks, and provide appropriate post-treatment care instructions. By following these instructions and seeking professional guidance, you can minimize the risks and maximize the benefits of HIFU treatment.

High-intensity focused ultrasound and Ultherapy are both non-invasive cosmetic treatments that utilize ultrasound technology to lift and tighten the skin. While they share some similarities, there are also key differences between the two procedures:

  • Technology: Both HIFU and Ultherapy use ultrasound energy to target specific depths of the skin. However, they employ different ultrasound frequencies and delivery methods. HIFU typically utilizes lower ultrasound frequencies, while Ultherapy uses higher frequencies. This difference can affect the depth of penetration and the specific layers of skin targeted.
  • Depth of treatment: HIFU can target multiple layers of the skin, including the deep dermis and superficial muscular aponeurotic system (SMAS). It is capable of reaching depths of 1.5mm, 3mm, and 4.5mm. On the other hand, Ultherapy primarily focuses on the deeper layers of the skin, specifically the SMAS layer, which is targeted at a depth of 4.5mm.
  • Treatment areas: Both HIFU and Ultherapy are commonly used for facial rejuvenation, including areas such as the forehead, cheeks, jowls, and neck. However, HIFU may also be used on other parts of the body, such as the abdomen and arms, for body contouring and skin tightening.
  • Treatment duration: The duration of HIFU and Ultherapy treatments can vary. HIFU treatments typically take around 30 minutes to a couple of hours, depending on the treatment area and the specific device used. Ultherapy treatments usually take around 60-90 minutes.
  • Number of sessions: The number of required treatment sessions may vary for both HIFU and Ultherapy, depending on individual factors and treatment goals. Typically, HIFU requires 1-3 sessions, while Ultherapy often involves a single treatment session.

Post-treatment effects: After HIFU or Ultherapy, it is common to experience temporary side effects such as redness, swelling, and mild discomfort. These effects usually resolve within a few hours to a few days.

High-intensity focused ultrasound and Thermage are both non-invasive cosmetic treatments that aim to tighten and rejuvenate the skin. While they share the goal of skin tightening, there are some differences between HIFU and Thermage:

  • Technology: HIFU uses focused ultrasound energy to target specific depths within the skin, delivering energy to stimulate collagen production and tighten the skin. Thermage, on the other hand, utilizes radiofrequency (RF) energy to heat the deep layers of the skin, promoting collagen remodeling and skin tightening.
  • Depth of treatment: HIFU can target multiple layers of the skin, including the deep dermis and superficial muscular aponeurotic system (SMAS), at depths of 1.5mm, 3mm, and 4.5mm. Thermage, on the other hand, reaches depths of up to 3mm.
  • Treatment areas: Both HIFU and Thermage can be used to treat various areas of the body, including the face, neck, and body. However, HIFU is often used for facial rejuvenation and body contouring, while Thermage is commonly used for facial skin tightening and addressing sagging skin on the eyelids and body.
  • Treatment sensation: The sensation experienced during HIFU and Thermage treatments can differ. HIFU treatments may cause a warm or prickling sensation along with intermittent heat. Thermage treatments involve a cooling mechanism to help counteract the heating sensation from the RF energy.
  • Treatment duration: The duration of HIFU and Thermage treatments can vary. HIFU treatments typically take around 30 minutes to a couple of hours, depending on the treatment area and the specific device used. Thermage treatments usually take around 30 minutes to 2 hours, depending on the treated area and the size of the treatment zone.
  • Number of sessions: The number of required treatment sessions may vary for both HIFU and Thermage, depending on individual factors and treatment goals. HIFU often requires 1-3 sessions, while Thermage usually involves a single treatment session.
  • Downtime and results: HIFU and Thermage are generally associated with minimal downtime. After HIFU, there may be temporary redness, swelling, and mild discomfort. Thermage may cause temporary redness, swelling, or slight bruising. The full results of both treatments develop gradually over several months as collagen remodeling occurs.

How many sessions of HIFU do I need?

The number of sessions required for HIFU can vary depending on individual factors and treatment goals. Typically, 1-3 sessions are recommended for optimal results. 

How long do the results from HIFU last?

The effects of high-intensity focused ultrasound treatment develop gradually over time as collagen production is stimulated and the skin tightens. Generally, the results can last for several months to a year. However, individual factors such as skin characteristics, age, lifestyle, and skincare routine can influence the duration of results. Periodic maintenance treatments may be recommended to sustain the desired outcomes.

Does HIFU hurt?

Some individuals may experience mild discomfort or a sensation of heat as the ultrasound energy is delivered to the deeper layers of the skin. However, the level of discomfort can vary from person to person. To ensure a comfortable experience, a topical anesthetic or pain medication may be applied before the procedure. 

How long does a HIFU treatment take?

The duration of a high-intensity focused ultrasound treatment session can vary depending on the treatment area and the specific device used. Generally, HIFU treatments can take around 30 minutes to a couple of hours. The duration may be longer if multiple areas are being treated or if a larger treatment area is involved.

How soon after HIFU will I see the results?

The results of HIFU treatment develop gradually over time. Some individuals may start noticing initial improvements in skin tightness and lifting immediately after the procedure. However, the full effects of high-intensity focused ultrasound will continue to improve over the following weeks to months as collagen remodeling occurs.

What are the most common target areas of HIFU?

High-intensity focused ultrasound can be used to target various areas of the face and body. The most common target areas for HIFU on the face include the forehead, cheeks, jowls, jawline, and neck. It can also be used for body contouring and skin tightening on areas such as the abdomen, arms, thighs, and buttocks. 

Can I wear makeup after HIFU?

After HIFU, it is generally recommended to avoid wearing makeup immediately after the procedure to allow the skin to properly heal. Your cosmetic practitioner will provide specific post-treatment instructions, including when it is safe to resume wearing makeup. Typically, makeup can be applied the day after the procedure, but it is advisable to use gentle and non-irritating products to avoid any potential skin irritation.

Does HIFU really work?

High-intensity focused ultrasound is a well-established and clinically proven cosmetic treatment that has been shown to effectively tighten and lift the skin. Numerous studies have demonstrated its efficacy in stimulating collagen production and improving skin laxity. However, individual results can vary, and it is important to have realistic expectations.

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