In this article, we will delve into the 10 most frequently asked questions about long-pulse lasers. From their applications to their underlying principles and so on. we’ll explore the fascinating world of these powerful laser systems. So, let’s get started!
1.What’s the principle of long pulse alexandrite laser?
The treatment principle of the long pulse alexandrite laser relies on the selective absorption of the laser light by melanin in the skin. This selective absorption allows for targeted treatment of pigmented lesions, such as hair removal, age spots, sun spots, freckles, skin rejuvenation and vascular veins, without causing significant damage to the surrounding healthy tissue. The laser energy is converted to heat, which breaks down the targeted pigment, allowing it to be absorbed and removed by the body’s natural processes.
In detail procedure for example,
Hair removal:
1. Wavelength: The laser operates at a wavelength of 755 nanometers (nm), which is selectively absorbed by the melanin pigment found in the hair follicles.
2. Melanin absorption: The melanin in the hair follicles and surrounding skin absorbs the 755nm laser energy, while the surrounding healthy skin has lower absorption at this wavelength.
3. Thermal damage: The absorbed laser energy is converted into heat, which damages the hair follicles and inhibits future hair growth, while minimizing damage to the surrounding skin.
4. Selective photothermolysis: The principle of selective photothermolysis is illustrated, where the laser energy is selectively absorbed by the target chromophore (melanin) without causing significant damage to the surrounding tissues.
5. Hair follicle structure: A cross-section of the skin showing the hair follicle structure and the targeting of the laser energy to the melanin-rich areas within the follicle.
6. Gradual heating: In the case of long-pulse alexandrite lasers, the diagram could illustrate the gradual, controlled heating of the targeted structures over an extended duration, rather than instantaneous heating.
The principle of using an alexandrite laser for the removal of age spots (also known as solar lentigines) and vascular lesions (such as spider veins) is based on the selective absorption of the laser energy by the target chromophores (light-absorbing molecules) within these lesions.
Age spots, Sun spots, freckles:
– Principle: Age spots are caused by localized accumulations of melanin pigment in the skin.
– Wavelength: The alexandrite laser operates at a wavelength of 755 nanometers (nm), which is selectively absorbed by the melanin pigment in the age spots.
– Selective absorption: The melanin in the age spots absorbs the laser energy more strongly than the surrounding healthy skin, causing targeted thermal damage to the pigmented lesions.
– Mechanism: The absorbed laser energy heats up the melanin, leading to the fragmentation and destruction of the melanin-containing cells, which are then gradually cleared by the body’s natural processes.
The use of alexandrite lasers for skin rejuvenation is based on the principle of selective photothermolysis, where the laser energy is selectively absorbed by specific target chromophores (light-absorbing molecules) in the skin.
Skin Rejuvenation:
1.Melanin absorption:
– Alexandrite lasers have a wavelength of 755 nm, which is strongly absorbed by melanin, the main chromophore responsible for skin pigmentation.
2. Selective photothermolysis:
– The laser energy is absorbed by the melanin, causing it to heat up and transfer the thermal energy to the surrounding tissue.
– This targeted heating can stimulate various skin rejuvenation processes, such as collagen remodeling and improved skin texture.
3. Skin resurfacing:
– The laser energy can also induce a controlled injury to the superficial layers of the skin, triggering a wound healing response that leads to the removal of damaged or aged skin cells and the stimulation of new collagen production.
Vascular lesions (spider veins):
– Principle: Vascular lesions, such as spider veins, are caused by the dilation or malformation of small blood vessels in the skin.
– Wavelength: The alexandrite laser’s 755 nm wavelength is also well-absorbed by the hemoglobin, the oxygen-carrying pigment in red blood cells.
– Selective absorption: The hemoglobin in the dilated blood vessels within the vascular lesions absorbs the laser energy more strongly than the surrounding healthy tissue.
– Mechanism: The absorbed laser energy heats up and damages the blood vessel walls, causing them to collapse and be reabsorbed by the body, leading to the reduction or elimination of the vascular lesions.
The selective absorption of the 755 nm laser energy by the target chromophores (melanin for age spots and hemoglobin for vascular lesions) is the key principle that allows the alexandrite laser to effectively treat these skin conditions without causing significant damage to the surrounding healthy tissue.
The controlled delivery of laser energy and the gradual heating and destruction of the targeted structures, combined with the body’s natural clearing mechanisms, are the underlying principles that make the alexandrite laser an effective treatment option for age spots and vascular lesions.
2.How many sessions for the alexandrite laser treatment?
Hair removal
The number of sessions required for alexandrite laser hair removal can vary depending on several factors, but generally, the following guidelines apply:
1. Hair growth cycle:
– Hair follicles have different growth cycles, with some being in the active growth phase (anagen) and others in the resting phase (telogen).
– The alexandrite laser is most effective on hairs in the active growth phase, as it can target the melanin-rich follicles.
– To treat all the hair follicles, multiple sessions are typically needed, spaced 4 weeks apart, to target the hair in different growth phases.
2. Hair thickness and coarseness:
– Coarse, thick hair may require more treatment sessions compared to fine, thin hair.
– Thicker hair follicles absorb more laser energy, making them more susceptible to damage, but also require more energy to be effectively treated.
3. Skin tone and hair color:
– The alexandrite laser is most effective on individuals with lighter skin tones and darker hair colors, as the contrast between the melanin in the hair and the surrounding skin is higher.
– Individuals with darker skin tones or lighter hair colors may require more sessions or may not be suitable candidates for alexandrite laser treatment.
4. Treatment area:
– The number of sessions can also depend on the size and location of the treatment area.
– Larger areas, such as the legs or back, may require more sessions compared to smaller areas like the upper lip or chin.
Generally, for most individuals, a series of 6-8 treatments spaced 4 weeks apart is recommended for effective and long-lasting hair removal using an alexandrite laser. However, the exact number of sessions may vary based on the individual’s characteristics and the specific treatment response.
Age spots, Sun spots, freckles:
– For age spots or solar lentigines, typically 2-6 sessions are required to achieve satisfactory results.
– The exact number of sessions may depend on the size, depth, and severity of the age spots, as well as the individual’s skin type and response to treatment.
– Lighter, more superficial age spots may require fewer sessions, while deeper, more stubborn lesions may require more treatments.
– Sessions are typically spaced 4-8 weeks apart to allow for the body’s natural clearing of the targeted pigment.
The number of sessions required for alexandrite laser skin rejuvenation and tattoo removal can vary depending on several factors:
Alexandrite Laser Skin Rejuvenation:
– The number of sessions typically ranges from 3 to 6 treatments, spaced 4 to 6 weeks apart.
– Factors that can influence the number of sessions include:
– Skin type and condition: Patients with more severe sun damage, wrinkles, or pigmentation may require more sessions.
– Desired level of improvement: Patients seeking more dramatic results may need a higher number of treatments.
– Individual response to treatment: Some patients may respond better or faster to the laser treatment than others.
The general guidelines for alexandrite laser skin rejuvenation are:
– 3-4 sessions for mild to moderate skin concerns
– 5-6 sessions for more advanced skin conditions
After the initial treatment series, some patients may opt for maintenance treatments every 6 to 12 months to sustain the results.
Vascular lesions (spider veins):
– For vascular lesions, such as spider veins, 2-6 sessions are generally recommended.
– The number of sessions may depend on the size, location, and severity of the vascular lesions, as well as the individual’s skin tone and response to treatment.
– Smaller, more superficial spider veins may require fewer sessions, while larger or deeper vascular lesions may need more treatments.
– Sessions are typically spaced 4 weeks apart to allow the damaged blood vessels to be adequately reabsorbed by the body.
It’s important to note that the number of sessions can vary significantly from individual to individual, and the treatment plan should be tailored based on the specific condition and response to treatment.
Additionally, maintenance treatments may be required periodically to address any new or recurrent lesions that may develop over time.
It’s recommended to consult with an experienced dermatologist or laser specialist to determine the appropriate treatment plan and number of sessions required for your individual case of age spots or vascular lesions.
3.How to buy alexandrite laser hair removal machine? Purchase, where to buy?
Here are the steps to purchase an alexandrite laser hair removal machine:
1. Determine your budget and financing options:
– Alexandrite laser machines can be a significant investment, ranging from USD5,000 to USD150,000 or more.
– Explore financing options, such as equipment leasing or medical equipment loans, to spread the cost over time.
– Consider factors like the expected return on investment (ROI) and the potential revenue the laser can generate for your practice.
2. Evaluate the manufacturer’s support and service:
– Look for a manufacturer that provides comprehensive training, technical support, and ongoing maintenance services.
– Ensure that the company has a reliable service network and can provide prompt assistance if any issues arise.
3. Obtain the necessary regulatory approvals:
– Ensure that the alexandrite laser device you purchase is approved by the relevant regulatory authorities, such as the FDA in the United States.
– Familiarize yourself with the licensing and certification requirements for operating a laser hair removal device in your jurisdiction.
4. Schedule a demonstration and consultation:
– Request a demonstration of the laser device to assess its performance and user-friendliness.
– Consult with the manufacturer to discuss your specific needs, treatment protocols, and any potential customization options.
5. Consider the accessories and consumables:
– Inquire about the availability and cost of accessories, such as different handpieces, cooling systems, and protective eyewear.
– Understand the ongoing costs of consumables, such as replacement parts and any required maintenance or calibration.
6. Ensure proper installation and staff training:
– Coordinate with the manufacturer to ensure the laser device is properly installed and integrated into your practice.
– Arrange for comprehensive training for your staff on the safe and effective use of the alexandrite laser.
By following these steps, you can make an informed decision when purchasing an alexandrite laser hair removal machine that best fits the needs and requirements of your medical or aesthetic practice.
4.Which laser is better diode or alexandrite? Sporano ice laser vs alexandrite
Both diode and alexandrite lasers are commonly used for hair removal, and each has its own advantages and disadvantages. The choice between the two depends on various factors, including the patient’s skin and hair characteristics, as well as the practitioner’s preferences and experience. Here’s a comparison of the two laser types for hair removal:
Diode Laser:
1. Wavelength: Diode lasers typically operate in the wavelength range of 800-810 nm.
2. Skin type suitability: Diode lasers are generally suitable for a range of skin types (up to Fitzpatrick skin type V, can’t use on dark skin type VI).
3. Hair thickness: Diode lasers are effective for treating coarse, thick hair.
4. Penetration depth: Diode lasers have a deeper penetration into the skin, allowing them to target the hair follicles more effectively.
5. Treatment speed: Diode lasers can often achieve faster treatment times compared to alexandrite lasers.
6. Treatment experience: Its ICE touch cooling, slide with ultrasound gel. Needs the clean before and after.
Alexandrite Laser:
1. Wavelength: Alexandrite lasers operate at a wavelength of 755 nm, some combined 1064nm.
2. Skin type suitability: Alexandrite lasers are most suitable for individuals with lighter skin tones (Fitzpatrick skin types I-IV), while 1064nm laser most suitable for darker skin types IV~VI.
3. Hair color: Alexandrite lasers are highly effective for treating darker hair, as the 755 nm wavelength is strongly absorbed by melanin.
4. Precision: Alexandrite lasers are often considered more precise in targeting the hair follicles, leading to better treatment outcomes.
5. Potential for better long-term results: Some studies suggest that alexandrite lasers may provide better long-term hair removal results compared to diode lasers.
6. Treatment experience: Long pulse alexandrite laser use fiber optic technology, no need touch of skin, no need ultrasound gel. Treatment experience better.
In general, the choice between diode and alexandrite lasers for hair removal depends on the individual patient’s characteristics, such as skin type, hair color, and hair thickness. Practitioners with experience in both laser types can assess the patient’s suitability and make an informed decision on the most appropriate laser for their needs.
It’s important to note that both diode and alexandrite lasers can be effective for hair removal when used by experienced practitioners, and the overall treatment outcome also depends on factors such as the practitioner’s technique, treatment parameters, and the patient’s response to the therapy.
5.Alxandrite laser before and after? does it safe and permanent hair removal? after care?
Alexandrite laser hair removal can provide significant and long-lasting results, but it’s important to understand the before, during, and after aspects of the treatment. Here’s a summary:
Before the treatment:
– Avoid sun exposure and tanning for 2-4 weeks prior to the treatment, as this can increase the risk of side effects.
– Shave the treatment area within 24-48 hours before the appointment to allow the laser to target the hair follicles effectively.
– Inform the practitioner of any medications, medical conditions, or previous skin treatments that could affect the procedure.
During the treatment:
– The practitioner will use the alexandrite laser to target the melanin in the hair follicles, which absorb the laser energy and get disabled.
– The treatment can be slightly uncomfortable, but the practitioner will use cooling techniques to minimize discomfort.
– The number of pulses and the intensity of the laser will be adjusted based on your skin type and hair characteristics.
After the treatment:
– Redness, swelling, and mild discomfort are common and usually subside within a few hours to a few days.
– The treated hair may appear to continue growing for a week or two, but it will eventually shed as the follicles are damaged.
– Gradual hair reduction is typically observed over multiple treatment sessions, with the best results achieved after 4-6 treatments.
Effectiveness and safety:
– Alexandrite laser hair removal is generally considered safe and effective for individuals with lighter skin tones (Fitzpatrick skin types I-IV). While yag laser for skin types IV~VI
– The results are not permanent, as new hair growth can occur over time. However, the hair that regrows is often finer and lighter in color.
– With proper care and maintenance, the hair reduction achieved with alexandrite laser can be long-lasting, with some patients experiencing significant hair reduction for several years.
Aftercare:
– Avoid sun exposure and tanning for 2-4 weeks after the treatment to prevent discoloration or other complications.
– Use a gentle, fragrance-free moisturizer and avoid irritating the treated area.
– Avoid hot showers, saunas, and strenuous exercise for 24-48 hours after the treatment.
– Follow any specific aftercare instructions provided by the practitioner.
Overall, alexandrite laser hair removal can be a safe and effective option for hair reduction, but it’s important to follow the guidance of an experienced practitioner and adhere to the pre- and post-treatment care recommendations.
6.Do u need to shave before alexandrite laser?
Yes, it is generally recommended to shave the treatment area before undergoing alexandrite laser hair removal. Shaving the hair prior to the treatment is an important step for a few key reasons:
1. Improved laser energy absorption:
– The melanin in the hair follicle is the target chromophore (light-absorbing substance) for the alexandrite laser.
– When the hair is shaved, the laser energy can penetrate directly to the hair follicle, allowing for more efficient absorption and targeting of the melanin.
– Leaving the hair unshaved can result in the laser energy being reflected or absorbed by the hair shaft instead of penetrating to the follicle.
2. Reduced risk of epidermal damage:
– Longer, unshaved hair can act as a conduit, transferring the laser energy to the skin surface and potentially causing superficial burns or other unwanted effects.
– Shaving the hair minimizes this risk by removing the hair shaft and preventing the direct transfer of laser energy to the epidermis.
3. Better treatment visualization:
– Shaving the area allows the practitioner to clearly see the treatment area and ensure even coverage of the laser energy.
– This improved visualization helps the practitioner target the treatment accurately and avoid missed spots.
4. Improved comfort and safety:
– Shaving the hair before the treatment can reduce the sensation of the laser pulse, making the procedure more comfortable for the patient.
– It also prevents any potential smoke or debris from the vaporized hair from irritating the skin during the treatment.
It is typically recommended to shave the treatment area within 24-48 hours prior to the alexandrite laser hair removal session. This allows the hair to be short enough to facilitate optimal laser absorption and treatment efficacy, while also minimizing any discomfort or potential side effects.
Always follow the specific instructions provided by the laser practitioner or clinic, as they may have additional recommendations or requirements regarding pre-treatment hair removal.
7.How many famous brand of alexandrite laser?
There are several well-known and reputable brands that offer alexandrite laser systems for hair removal and other cosmetic applications. Here are some of the most famous and widely used alexandrite laser brands:
1. Candela:
– Candela is a leading manufacturer of medical laser systems, including the GentleLASE and GentleLASE Pro alexandrite laser platforms.
– Candela’s alexandrite lasers are known for their high-performance, safety, and efficacy in various aesthetic treatments.
2. Cynosure:
– Cynosure is another prominent brand in the medical aesthetic industry, offering the Elite+ alexandrite laser system.
– The Elite+ combines the 755 nm alexandrite wavelength with the 1064 nm Nd:YAG wavelength, providing versatility for treating a range of skin conditions.
3. Deka:
– Deka is an Italian manufacturer of medical and aesthetic laser devices, including the Motus AX alexandrite laser.
– The Motus AX is known for its innovative technology, such as the use of a fractional handpiece and advanced cooling systems.
4. Cutera:
– Cutera is a well-recognized brand in the cosmetic laser industry, offering the enlighten III alexandrite laser system.
– The enlighten III combines the 755 nm alexandrite wavelength with a 1064 nm Nd:YAG wavelength, allowing for versatile applications in hair removal, pigment reduction, and other aesthetic treatments.
5. Lumenis:
– Lumenis is a leading global manufacturer of medical laser and energy-based devices, including the LightSheer Duet alexandrite laser system.
– The LightSheer Duet is designed for safe and effective hair removal, featuring advanced cooling technology and customizable treatment parameters.
These are some of the most prominent and widely used alexandrite laser brands in the medical aesthetic market. Each brand offers unique features, technologies, and treatment capabilities, so it’s important to consult with an experienced practitioner to determine the most suitable alexandrite laser system for your specific needs and desired outcomes.
8.How to use alexandrite laser?
Using an alexandrite laser for hair removal involves the following general steps:
1. Preparation:
– Shave the treatment area within 24-48 hours prior to the appointment.
– Avoid sun exposure and tanning for 2-4 weeks before the treatment.
– Inform the practitioner of any medications, medical conditions, or previous skin treatments that could affect the procedure.
2. Consultation and assessment:
– The practitioner will assess your skin type, hair characteristics, and treatment goals to determine the appropriate laser settings.
– They may also perform a test patch on a small area to evaluate your skin’s response to the laser.
3. Skin cooling:
– The treatment area will be cooled using a specialized cooling device or cryogenic cooling spray to minimize discomfort and protect the skin during the laser treatment.
4. Laser application:
– The practitioner will guide the laser handpiece over the treatment area, delivering precise pulses of laser energy to the hair follicles.
– The laser energy is absorbed by the melanin in the hair, which converts to heat and damages the follicle.
5. Monitoring and adjustments:
– The practitioner will closely monitor your skin’s response and adjust the laser settings as necessary to optimize the treatment.
– They may also use various techniques, such as overlapping laser pulses or adjusting the laser fluence (energy density), to ensure even coverage and optimal results.
6. Cooling and post-treatment care:
– After the treatment, the area will be cooled again to soothe the skin and reduce any immediate side effects.
– The practitioner will provide instructions on proper post-treatment care, such as avoiding sun exposure, using gentle skincare products, and managing any temporary side effects.
It’s important to note that the specific steps and techniques may vary depending on the practitioner, the type of alexandrite laser system being used, and the individual’s skin and hair characteristics.
Proper training and experience are essential for the safe and effective use of an alexandrite laser. Patients should always follow the guidance and instructions provided by a licensed and qualified medical professional when undergoing alexandrite laser hair removal or any other laser-based aesthetic treatment.
9.How much does alexandrite laser treatment cost?
The cost of alexandrite laser hair removal can vary depending on several factors, including:
1. Geographic location:
– Prices tend to be higher in major metropolitan areas and coastal cities compared to rural or suburban areas.
– The overall cost of living and the specific market conditions in a region can impact the pricing.
2. Practitioner’s experience and expertise:
– Treatments performed by highly experienced and specialized practitioners, such as dermatologists or plastic surgeons, may be more expensive than those done by less experienced providers.
3. Number of treatment areas:
– The cost is typically based on the size of the treatment area, with larger areas like the legs or back being more expensive than smaller areas like the upper lip or underarms.
4. Number of treatment sessions:
– Most hair removal treatments require a series of 4-6 sessions, and the total cost is calculated based on the number of sessions needed to achieve the desired results.
5. Type of laser used:
– While alexandrite lasers are a specific type of laser, there may be variations in the technology and features between different laser models, which can affect the pricing.
6. Facility and equipment costs:
– The overhead costs of the medical or aesthetic practice, including the investment in high-quality laser equipment, can influence the final treatment cost.
On average, the cost of alexandrite laser hair removal can range from $150 to $500 per treatment session, depending on the factors mentioned above. For a full course of treatment (typically 4-6 sessions), the total cost can range from $600 to $2,500 or more.
It’s important to note that the cost can vary significantly between different practitioners and locations, so it’s recommended to research and compare prices in your local area before committing to a treatment plan. Additionally, some clinics or practitioners may offer package deals or financing options to make the treatments more affordable for patients.
10.Uses of alexandrite laser in dermatology?
Alexandrite lasers have a wide range of applications in dermatology, mainly focused on various cosmetic and aesthetic treatments. Some of the key uses of alexandrite lasers in dermatology include:
1. Hair removal:
– Alexandrite lasers are one of the most commonly used laser types for long-term hair reduction and removal.
– The 755 nm wavelength of the alexandrite laser is particularly effective in targeting and disabling the melanin-rich hair follicles.
– It is commonly used for hair removal on various body areas, including the face, legs, underarms, and bikini line.
2. Pigment reduction:
– Alexandrite lasers can be used to treat various types of pigmentary lesions, such as age spots, sun spots, and freckles.
– The laser energy is absorbed by the melanin in the targeted pigment, causing it to break down and be eliminated by the body’s natural processes.
3. Tattoo removal:
– Alexandrite lasers are effective in removing certain types of tattoos, particularly those with blue or green pigments.
– The laser energy targets and breaks down the tattoo ink particles, allowing the body to clear them over time.
4. Vascular lesion treatment:
– Alexandrite lasers can be used to treat small blood vessels and vascular lesions, such as spider veins, cherry angiomas, and telangiectasias.
– The laser energy is absorbed by the hemoglobin in the blood vessels, leading to their coagulation and eventual disappearance.
5. Skin rejuvenation:
– Alexandrite lasers can be used in combination with other laser modalities for skin rejuvenation treatments, such as improving skin texture, reducing fine lines and wrinkles, and evening out skin tone.
6. Acne treatment:
– Some studies have suggested that alexandrite lasers may have a role in the treatment of acne by targeting and reducing the activity of the sebaceous glands.
It’s important to note that the use of alexandrite lasers in dermatology requires specialized training and expertise, as well as the careful selection of parameters and protocols to ensure safe and effective treatments for each patient’s specific needs and skin type.