Can Yag Laser Be Used For Welding? A Guide To Precision Welding Solutions

Discover how Nd:YAG lasers enable precise, strong welds with minimal heat distortion, ideal for spot welding and imperfect part fit-up.

Where Is Nd:yag Laser Most Commonly Used? Revolutionizing Non-Invasive Eye Surgery

Discover the key applications of Nd:YAG lasers in ophthalmology, including posterior capsulotomy and peripheral iridotomy for precise, non-invasive procedures.

How Does The Yag Laser Work? Precision Through Photodisruption, Not Heat

Discover how YAG lasers use photodisruption to create microscopic shockwaves for precise medical procedures like eye surgery, without thermal damage.

How Often Do You Need To Get A Yag Laser? A Permanent Solution For Cloudy Vision

YAG laser capsulotomy is a one-time, permanent procedure to correct cloudy vision after cataract surgery. Learn why the cloudiness doesn't return.

What Are The Advantages Of Laser Machine? Unlock Precision, Speed, And Automation

Discover the key benefits of laser machines: unmatched precision, high-speed processing, and automation for superior manufacturing and design.

What Are The Side Effects Of Q-Switch Laser? A Guide To Safe, Effective Treatment

Learn about common and rare Q-switch laser side effects like redness, swelling, and pigment changes, and how to minimize risks for safe treatment.

Why Am I Not Seeing Results After A Co2 Laser? Your Patience Is The Key To Long-Term Skin Rejuvenation

Learn why CO2 laser results take time. Discover the 3-phase healing process and realistic timeline for collagen remodeling, from 1 month to 6+ months.

What's The Worst Day After A Co2 Laser? Day 2 Is The Peak Of Recovery

Discover why Day 2 is the most challenging after a CO2 laser, with peak swelling and redness, and learn how to manage recovery effectively.

Why Is Laser Energy Density Controlled At 15 J/Cm² For Eyeliner Tattoo Removal? Ensuring Safety And Precision

Learn why 15 J/cm² is the critical safety threshold for eyeliner tattoo removal to prevent scarring and protect delicate meibomian glands.

Where Is The Nd:yag Laser Most Commonly Used? The Key To Non-Invasive Eye Surgery

Discover the primary use of Nd:YAG lasers in ophthalmology for procedures like posterior capsulotomy and laser iridotomy to restore vision.

What Role Does The Microsecond Pulse Mode Of An Nd:yag Laser Play In Scar Treatment? Unveiling Genesis Mode Benefits

Learn how the Nd:YAG microsecond pulse (Genesis Mode) repairs skin and treats scars through non-ablative thermal induction and collagen renewal.

How Does A 360-Degree Probe Improve Vaginal Co2 Laser Outcomes? Achieve Uniform Tightening And Professional Results

Discover how 360-degree probes ensure uniform energy distribution, global tissue remodeling, and faster procedures in vaginal CO2 laser treatments.

How Does Non-Ablative Er:yag Laser Compare To Traditional Methods In Repairing Vaginal Mucosa? A Modern Comparison

Learn how non-ablative Er:YAG laser therapy compares to traditional surgery for vaginal mucosal repair, focusing on safety and regeneration.

How Can The Initial Application Of An Ablative Laser Be Used To Enhance The Effects Of Topical Anesthesia Creams? Maximize Numbing

Discover how a low-energy laser pass increases skin permeability, allowing topical anesthesia to penetrate deeper for faster and more effective numbing.

What Advantages Do Picosecond Laser Devices Offer? Superior Pigment Clearance With Reduced Heat Risk

Learn how picosecond lasers use photoacoustic effects to shatter pigment into dust, offering faster clearance and higher safety than traditional lasers.

What Are The Technical Advantages Of Using A 1064 Nm Q-Switched Nd:yag Laser For Treating Deep Dermal Hyperpigmentation?

Explore why the 1064 nm Q-Switched Nd:YAG laser is the gold standard for deep pigment removal, offering superior penetration and safety for all skin.

What Are The Primary Advantages Of Utilizing A Long-Pulse 1064Nm Nd:yag Laser System For Treating Pca?

Discover how long-pulse 1064nm Nd:YAG lasers treat Primary Cicatricial Alopecia by targeting inflammatory loci and preserving the epidermis.

Why Is The Nd:yag Laser System Necessary For Deep Vascular Malformations? The Key To Deep Vessel Occlusion

Learn why the 1064 nm Nd:YAG laser is essential for treating deep, large-diameter vessels through superior tissue penetration and deep coagulation.

What Is The Role Of The Ktp Crystal In A Q-Switched Frequency-Doubled Nd:yag Laser? Unlock Multi-Color Tattoo Removal

Learn how the KTP crystal enables 532nm green light in Nd:YAG lasers, making it possible to effectively treat red and warm-toned tattoo pigments.

How Does The Co2 Fractional Laser Improve Hs Prognosis? Advanced Solutions For Scar Remodeling And Lesion Removal

Learn how CO2 fractional lasers improve Hidradenitis Suppurativa outcomes through precise ablation, fibrosis reduction, and rapid skin healing.

Why Is The 585 Nm Wavelength Utilized In Medical Lasers For Treating Port Wine Stains? Achieve Precise Vascular Clearing

Learn why the 585 nm wavelength is the gold standard for Port Wine Stain treatment through selective photothermolysis and targeted absorption.

What Is The Role Of Gel In Laser Hair Removal? Enhance Optical Coupling And Skin Protection

Learn how colorless gel acts as an optical coupling medium and thermal barrier to maximize laser efficiency and patient safety.

What Are The Benefits Associated With Hydrodermabrasion? Unlock Radiant, Hydrated Skin With Non-Invasive Technology

Discover how hydrodermabrasion combines exfoliation and deep hydration to treat acne, signs of aging, and dullness for a glowing complexion.

How Is The Nd:yag Laser Used To Treat Hyperpigmentation? Advanced 1064Nm Solutions For Clear Skin

Learn how Nd:YAG laser 1064nm technology targets deep melanin to eliminate hyperpigmentation and dark circles with precision and safety.

How Does A Q-Switched Nd:yag Laser Treat Acne And Scars? Achieve Flawless Skin With Advanced Dermal Remodeling

Learn how the 1064nm Q-switched Nd:YAG laser targets deep dermis to eliminate acne bacteria and stimulate collagen for effective scar reduction.

What Is The Future Potential Of Lasers In Medicine? Unlocking Precision With Ultra-Short Pulse Technology

Explore the future of medical lasers: from ultra-short pulse precision to advanced diagnostics like OCT and non-invasive cosmetic treatments.

How Do Pico Laser Machines Work? Discover The Revolutionary Photomechanical Technology For Skin Renovation

Learn how Pico laser machines use ultra-short pulses and pressure waves to shatter pigment and stimulate collagen without heat damage.

What Does Skin Rejuvenation With Q-Switched Lasers Entail? Revitalize Your Skin With Targeted Precision

Learn how Q-switched laser rejuvenation repairs skin, stimulates collagen, and removes pigmentation with minimal downtime for a youthful glow.

How Does A Pico Laser Treat Pigmentation Issues? Unlock The Power Of Picosecond Technology For Clearer Skin

Learn how Pico laser uses photomechanical energy to shatter melanin into dust-like particles for natural, non-thermal pigment removal.

What Is The Recovery Process And Aftercare For A Pico Laser Treatment? Fast Healing & Pro Care Tips

Learn the Pico laser recovery timeline, essential aftercare steps, and how to protect your skin results with minimal downtime for peak performance.

What Clinical Evidence Supports The Effectiveness Of Laser Caps For Hair Loss? Proven Results For Regrowth & Density

Discover clinical research on laser caps for hair loss. Learn how these devices improve hair density and thickness for androgenetic alopecia.

How Long Do The Results Of A Cryolipolysis Treatment Last? Discover Permanent Body Sculpting Solutions

Learn why Cryolipolysis results are permanent and how to maintain your sculpted figure through effective body contouring technology.

What Are The Contraindications For Fractional Co2 Laser Treatment? Essential Safety Guide For Clinic Owners

Understand the key contraindications for fractional CO2 laser, including medications, skin conditions, and safety protocols for optimal healing.

What Follow-Up Appointments Are Required After A Fractional Co2 Laser Treatment? Essential Post-Care Timeline

Learn the 3 critical follow-up stages after fractional CO2 laser treatment to ensure safety, monitor healing, and maximize collagen remodeling results.

What Is The Mechanism Of The 532 Nm Nd:yag Picosecond Laser? Shatter Red & Orange Tattoo Ink With Precision

Learn how 532 nm Nd:YAG picosecond lasers use photomechanical effects to shatter red and orange tattoo inks for faster, safer skin clearance.

What Is The Primary Application Of The Q-Switched Nd:yag Laser? Master Advanced Pigment And Tattoo Removal

Discover how Q-Switched Nd:YAG lasers utilize dual wavelengths to effectively treat tattoos, birthmarks, and hyperpigmentation with precision.

What Specific Conditions And Pigment-Related Problems Can Be Treated With The Q-Switched Nd:yag Laser? | Belis Guide

Discover how Q-Switched Nd:YAG lasers treat tattoos, freckles, acne scars, and vascular lesions with precision and professional-grade performance.

What Is Fat Freezing, Also Known As Cryolipolysis? Sculpt Your Body With Advanced Non-Invasive Cooling

Learn how cryolipolysis uses controlled cold to permanently eliminate fat cells and achieve targeted body contouring results.

How Do Non-Ablative Lasers Differ From Classic Ablation Lasers? Compare Recovery, Safety, And Pulse Technology

Learn the key differences between non-ablative and ablation lasers, focusing on recovery time, safety risks, and pulse mode technology.

How Does Hydrodermabrasion Address Skin Conditions Beyond Acne? Transform Texture, Aging, And Pigmentation

Discover how hydrodermabrasion treats hyperpigmentation, fine lines, and uneven texture through gentle exfoliation and deep serum infusion.

What Physical Mechanism Causes Retinal Damage From A 750-Nm Alexandrite Laser? Understanding Selective Photothermolysis

Learn how the 750-nm Alexandrite Laser causes retinal damage through selective photothermolysis and thermal injury to melanin-rich ocular tissues.

What Is The Role Of Topical Local Anesthesia In The Treatment Of Facial Verruca Plana? Essential Guide For Precision

Learn how topical anesthesia optimizes facial Verruca Plana laser treatments by enhancing patient comfort, precision, and clinical efficiency.

How Does The Combination Of A Fractional Co2 Laser System And Exosomes Facilitate Acne Scar Repair? Superior Synergies

Learn how fractional CO2 lasers and exosomes work together to remodel acne scars, boost collagen, and reduce downtime for faster skin recovery.

What Is The Purpose Of Using A 1 Cm2 Area Grid Tool In Hre Evaluation? Achieve Objective Clinical Accuracy

Learn how the 1 cm2 area grid tool standardizes Hair Reduction Efficiency (HRE) evaluation through precise hair counting and baseline tracking.

How Does A Picosecond Laser Equipped With A Diffractive Lens Array Improve Acne Scar Treatment? The Pico-Dla Advantage

Learn how Pico-DLA lasers use LIOB technology to remodel acne scars deep within the dermis with minimal downtime and lower PIH risk.

What Is The Significance Of Controlling The Pulse Dwell Time During A Fractional Co2 Laser Treatment? Expert Insights

Learn why pulse dwell time is critical for balancing ablation and coagulation in Fractional CO2 laser treatments to ensure safety and efficacy.

What Is The Mechanism Of Action For Ablative Fractional Co2 Lasers? Transform Scars With Advanced Remodeling

Learn how fractional CO2 lasers treat scars through physical micro-ablation and biological collagen remodeling for smoother, healthier skin.

What Are The Advantages Of Medical Co2 Laser Equipment? Eradicate Deep Fistulas With Precision & Faster Healing

Discover why CO2 lasers outperform traditional incision and drainage for treating deep fistulas, ensuring precision and preventing recurrence.

How Do Near-Infrared Laser Systems Achieve Dermal Remodeling? Unlock The Power Of Controlled Photothermal Injury

Discover how Er:Glass lasers (1540-1550 nm) trigger collagen regeneration and dermal remodeling while preserving the skin's surface.

What Role Does Tor Play In Transdermal Drug Delivery? Unlock Deep Dermal Absorption With Fractional Laser Technology

Learn how the Temporary Opening of the Epidermal Barrier (TOR) uses fractional lasers to deliver large-molecule drugs directly into the deep dermis.

How Does The Scanning Control System Of A Fractional Laser Optimize The Tissue Healing Process? Advanced Thermal Management

Learn how non-sequential scanning in fractional lasers prevents heat buildup and preserves healthy tissue to accelerate skin re-epithelialization.

What Are The Technical Advantages Of Pulsed Co2 Laser Mode For Xanthelasma? Enhance Precision And Safety

Learn why pulsed CO2 laser mode is superior for Xanthelasma removal, offering thermal control, reduced scarring, and precise tissue ablation.

What Is The Role Of External Laser In Dpla? Enhance Surgical Precision With Tissue Conditioning

Learn how external laser irradiation in DPLA creates fat cell micropores to enhance suction efficiency and optimize surgical outcomes.

What Are The Technical Considerations For Setting A 30 To 40Ms Pulse Width In Akn Laser Therapy? Optimize Treatment

Learn why a 30 to 40ms pulse width is essential for treating Acne Keloidalis Nuchae (AKN) by matching thermal relaxation time for deep destruction.

Why Is The Precise Adjustment Of Dot Power And Dwell Time Critical During Fractional Co2 Laser Procedures? Master Safety

Learn why calibrating power and dwell time in CO2 laser treatments is vital for tissue remodeling, safety, and preventing thermal damage.

Why Are Fractional Co2 Laser Systems Superior To Cryotherapy For Hair Regeneration? Deep Follicle Stimulation Benefits

Discover why Fractional CO2 Lasers outperform cryotherapy in hair regeneration through precision dermal targeting and superior follicle stimulation.

What Are The Technical Advantages Of The Pulsed Beam Mode In Co2 Fractional Laser Systems? Precision Meets Safety

Learn how pulsed beam mode in CO2 fractional lasers prevents thermal damage and accelerates recovery compared to continuous wave systems.

Which Physical Properties Do Diode Lasers Utilize For Vaginal Tissue Regeneration? Restore Internal Health With Heat

Learn how diode lasers use specific wavelengths and uniform thermal energy to boost blood flow, release cytokines, and restore vaginal tissue.

What Clinical Benefits Do Portable Medical-Grade Nd:yag Laser Devices Provide? Boost Clinical Efficiency & Versatility

Discover how portable Nd:YAG lasers enhance aesthetic practices through 1064nm deep penetration, dual-wavelength flexibility, and optimized workflow.

How Does Fractional Ablative Er:yag Laser Equipment Differ From Co2? Key Physics And Precision Differences Explained

Learn the technical differences between Er:YAG and CO2 lasers, focusing on water absorption, thermal damage, and skin resurfacing precision.

What Role Does The Q-Switched Laser System Play In Tattoo Removal? Master Deep Pigment Elimination

Learn how Q-switched lasers use photoacoustic shockwaves to shatter tattoo ink and deep melanin without damaging surrounding skin tissue.

What Are The Advantages Of A Co2 Laser Scanner For Scalp Adenomas? Precision And Speed For Large Lesions

Learn how high-precision scanning units in CO2 laser systems automate the treatment of large scalp sebaceous adenomas for superior aesthetic results.

How Do Laser Wavelength Parameters Affect Gsm Treatment Penetration? Optimize Your Clinic's Aesthetic Results

Learn how 10,600nm and 2,940nm wavelengths dictate penetration depth and thermal diffusion for effective GSM and vaginal atrophy treatments.

What Are The Technical Advantages Of Fractional Co2 Laser Systems Over Traditional Lasers? Precision Scar Revision

Learn why Fractional CO2 lasers outperform traditional ablation for burn scars through faster healing and reduced risk of hyperpigmentation.

What Role Does An Integrated Cold Air Skin Cooling System Play In Laser Hair Removal? Ensure Safety And Higher Efficacy

Discover how integrated cold air cooling protects the skin, enables higher laser energy, and improves patient comfort in hair removal procedures.

What Is The Clinical Significance Of Adjusting Energy Density And Dot Spacing In Fractional Laser Treatment? Tips

Learn how adjusting energy density and dot spacing in fractional lasers balances penetration and safety for psoriasis plaque treatment.

What Are The Unique Technical Advantages Of Carbon Dioxide (Co2) Laser Equipment In Managing Diffuse Actinic Cheilitis?

Discover how CO2 laser equipment uses precise depth control and selective photothermal action to effectively treat Actinic Cheilitis lesions.

What Are The Technical Advantages Of Using A Picosecond Nd:yag Laser? Superior Eyebrow Removal For Dark Skin

Learn why Picosecond Nd:YAG lasers outperform nanosecond systems for Fitzpatrick III-IV skin by utilizing photoacoustic effects over heat.

What Is The Physiological Function Of Fractional Co2 Laser For Gsm? Advanced Vaginal Remodeling Explained

Learn how fractional CO2 lasers treat GSM by triggering collagen synthesis, angiogenesis, and mucosal thickening for non-hormonal restoration.

Why Is The Long-Pulse 1064Nm Nd:yag Laser System Considered Safer For Treating Darker Skin Types? | Expert Safety Guide

Learn why the 1064nm Nd:YAG laser is the gold standard for Fitzpatrick IV-VI skin, offering deep penetration with minimal risk of burns or PIH.

What Is The Mechanism Of Action For The Fractional Caloric-Tensor Laser In Vaginal Tightening? Science Of Tissue Repair

Learn how fractional lasers use thermal energy to contract collagen and stimulate regeneration for non-surgical vaginal tightening and repair.

What Is The Operating Principle Of Q-Switched Lasers In The Treatment Of Melasma? Master Selective Photothermolysis

Learn how Q-switched lasers use photoacoustic effects and nanosecond pulses to treat Melasma by shattering pigment with minimal thermal damage.

How Do Picosecond Lasers Differ From Traditional Nanosecond Lasers? Discover The Future Of Tattoo Removal

Learn how picosecond lasers use photoacoustic waves to shatter pigment into dust, offering faster results and less heat damage than nanosecond lasers.

What Are The Specific Mechanisms Of 532Nm And 1064Nm Wavelengths In Q-Switched Nd:yag Lasers? Master Precision Pigment Removal

Learn how 532nm and 1064nm wavelengths work in Q-switched Nd:YAG lasers to treat epidermal and dermal pigmentation safely and effectively.

What Makes The Long-Pulse Nd:yag Laser Essential For Treating Deep Vascular Networks? Mastering Deep Tissue Penetration

Learn how the 1064 nm Nd:YAG laser effectively treats deep blue-toned vessels in rosacea through superior penetration and thermal destruction.

What Are The Advantages Of A 1,064-Nm Picosecond Laser Vs Q-Switched? Advanced Pigment Shattering Tech

Learn why 1,064-nm picosecond lasers outperform Q-switched systems in pigment removal using photomechanical effects for safer, faster clearance.

What Are The Advantages Of Medical-Grade Fractional Co2 Laser Systems? Learn Why Mtzs Outperform Traditional Ablation

Discover how Fractional CO2 Lasers use Micro-Ablative Treatment Zones to treat acne scars and keloids with faster healing and lower risk.

What Is The Fundamental Difference Between Picosecond Lasers And Ablative Lasers? Photoacoustic Vs Photothermal Rejuvenation

Learn how picosecond lasers use photoacoustic shockwaves versus the photothermal heat of ablative lasers for effective skin remodeling and repair.

What Is The Clinical Significance Of Spot Size And Pulsed Mode On A Fractional Co2 Laser? Master Scar Revision Precision

Learn how adjusting spot size and pulsed mode on Fractional CO2 lasers optimizes scar treatment depth, safety, and collagen remodeling results.

How Does The Superficial Ablation Mode Of A Medical-Grade Fractional Laser Facilitate Epidermal Repair? Master Surface Renewal

Learn how superficial ablation vaporizes damaged cells and uses MTZs to trigger rapid epidermal repair and skin tightening.

What Are The Technical Advantages Of Fractional Co2 Laser Systems? High-Efficacy Scar Repair For Clinics

Explore how Fractional CO2 Laser systems use microscopic thermal zones to treat atrophic acne scars through deep collagen remodeling and faster healing.

Why Are Medical-Grade Fringe Projection Scanning Systems Used For Scar Evaluation? Get Data-Backed Fractional Results

Discover why 3D fringe projection is the gold standard for quantifying fractional laser outcomes using micron-level Sz and Smax metrics.

What Role Do Medical Laser Systems Play In Congenital Melanocytic Nevi? Advanced Pigment & Recurrence Management

Discover how medical laser systems like CO2 and Nd:YAG refine pigment, prevent recurrence, and serve as vital tools in nevus management.

What Are The Primary Differences In The Absorption Mechanisms Of Er:yag Vs. Co2 Fractional Lasers In Scar Treatment?

Understand the differences between 2,940 nm Er:YAG and 10,600 nm CO2 lasers, focusing on water absorption, thermal damage, and clinical outcomes.

Why Is A Cooling Or Icing Stage Essential During Laser Treatments? Ensuring Safety & Efficacy In High-Precision Lasers

Learn why cooling is critical for laser safety, preventing burns, reducing pain, and enabling higher energy for better clinical results.

What Are The Benefits Of Using An 830 Nm Near-Infrared Diode Laser Source For The Reflection Imaging Of Skin Tissue?

Learn how 830 nm NIR lasers provide deep tissue penetration and high-contrast imaging for BCC detection and pigment analysis.

Why Is The Application Of High-Concentration Topical Anesthetic Cream With Occlusion Necessary Before Fractional Co2 Laser?

Learn why occlusion and high-concentration anesthetics are critical for deep dermal penetration and effective Fractional CO2 laser treatments.

What Are The Macroscopic And Microscopic Effects Of The Nd:yag Laser On Tissues? Insights For Clinical Excellence

Explore the deep tissue effects of Nd:YAG lasers, from coagulation necrosis and acute eschars to long-term dense fibrosis and healing cycles.

What Are The Common Applications Of Q-Switched Lasers? Explore High-Precision Medical & Industrial Uses

Discover the diverse applications of Q-switched lasers, from professional tattoo removal and dermatology to precision industrial marking and LIDAR.

What Is The Risk Of Laser-Induced Damage In Q-Switched Lasers? Protect Your Optics With Expert Mitigation

Learn about laser-induced damage risks in Q-switched lasers and how resonator design and mode area management protect your optical components.

How Can Significantly Larger Pulse Energies Be Obtained From A Q-Switched Laser? Scale Power With Mopa Systems

Learn how to maximize Q-switched laser pulse energy using MOPA architecture, Active Q-switching, and Ytterbium-doped media for peak performance.

What Is A Q-Switched Laser? Unlock Advanced Pigment And Tattoo Removal Technology

Learn how Q-switched lasers use high-power nanosecond pulses for effective tattoo removal, pigment treatment, and skin rejuvenation.

How Much Weight Or How Many Clothing Sizes Can Be Lost With Cryolipolysis? Sculpt Your Body & Drop 1-2 Sizes

Learn why Cryolipolysis is for fat reduction, not weight loss. Discover how to drop 1-2 clothing sizes by eliminating 20%-80% of targeted fat cells.

What Is The Typical Duration Of The Cryotherapy Phase In A Cryolipolysis Session? Optimize Your Clinic's Workflow

Understand the 35-minute standard cooling cycle for cryolipolysis and how multiple applications affect total appointment time for patients.

How Do Q-Switched Lasers Treat Benign Pigmented Lesions? Discover The Science Of Precision Skin Clearance

Learn how Q-Switched lasers use nanosecond pulses and the photoacoustic effect to shatter pigment and clear lesions safely.

How Are Lasers Used In Aesthetics Classified? Safety Precautions For Class Iv Aesthetic Laser Systems

Learn about laser classifications in aesthetics, why Class IV lasers dominate the market, and essential eye safety protocols for clinics.

How Are Nd: Yag Lasers Utilized For Treating Fungal Nail Infections? Effective 1064Nm Laser Solutions

Learn how Nd:YAG 1064nm lasers use photothermal energy to penetrate nail plates and eliminate fungal infections without invasive surgery or drugs.

Why Are Nd: Yag Lasers Considered Safe For Use In All Seasons? Maintain Your Treatment Schedule Year-Round

Learn why ND: YAG lasers are safe for year-round use by minimizing pigmentation risks and ensuring uninterrupted treatment schedules even in summer.

What Scientific Observation Led To The Development Of Cryolipolysis? Discover The Secret Of Popsicle Panniculitis

Learn how the observation of 'popsicle panniculitis' led to cryolipolysis, the science of selective fat freezing and non-invasive body contouring.

What Are The Primary Functions Of A Professional Nd:yag Laser Machine? Master Tattoo Removal And Skin Rejuvenation

Learn how professional ND:YAG laser machines work to remove tattoos, eliminate deep pigmentation, and stimulate collagen for skin rejuvenation.