What Specific Skin Conditions Can Be Treated Using A Co2 Laser? Professional Guide To Rejuvenation & Scar Removal

Discover how CO2 lasers treat deep wrinkles, acne scars, sun damage, and skin laxity through advanced resurfacing and collagen stimulation.

What Are The Contraindications For Undergoing A Lipolaser Treatment? Essential Safety Guidelines For Clinics

Learn the critical contraindications for Lipolaser treatments, including health conditions like liver disease and diabetes to ensure patient safety.

How Does A Neodymium Yag Laser Work On The Skin? Deep Skin Treatment Explained

Learn how Nd:YAG lasers use deep penetration and coagulation necrosis to treat hair follicles, vascular lesions, and darker skin tones safely.

What Is Involved In The Chemical Peel Step Of A Hydrafacial? Achieve Deep Pore Clarity With Vortex-Acid Peel

Learn how the HydraFacial Vortex-Acid Peel uses glycolic and salicylic acids to loosen deep impurities without irritation or downtime.

Is Shr Laser Hair Removal Effective For Individuals With Pcos? Achieving Smooth Skin Despite Hormonal Challenges

Discover why SHR laser is effective for PCOS patients. Learn about the treatment timeline, maintenance, and how to manage hormonal hair growth.

What Are The Advantages Of The Cryolipolysis Procedure? Safe, Non-Invasive Fat Removal For Your Clinic

Explore the key benefits of cryolipolysis, including zero downtime, no surgical risks, and permanent fat cell removal for natural body contouring.

What Are The Potential Side Effects Associated With Cryolipolysis? Learn Safety And Recovery Facts

Explore the common side effects of Cryolipolysis, including temporary redness, numbness, and rare risks like PAH, for a safe treatment experience.

What Are The Typical Configurations And Operational Modes Of Nd:yag Lasers? A Guide To Peak Laser Power

Learn about Nd:YAG laser architectures, Q-switching, and diode-pumping strategies to optimize power and wavelength for medical and industrial use.

What Is The Primary Difference In Pulse Duration Between Q-Switched Nd:yag And Picosecond Lasers? Timing Explained

Discover how nanosecond and picosecond pulse durations impact laser precision, treatment speed, and clinical outcomes for pigment removal.

What Are The Advantages Of Using A Picosecond Laser Over Older Laser Technologies? Superior Speed, Safety, And Efficacy

Discover why Picosecond lasers outperform older technology by using photo-acoustic pulses to shatter pigment into dust for faster, safer results.

How Many Sessions Are Typically Required For Nd:yag Laser Hair Removal? Achieve Smooth Skin With 2-6 Initial Sessions

Learn the typical Nd:YAG laser hair removal timeline: achieve significant reduction in 2-6 sessions and permanent results within 9-12 months.

How Safe Is The Use Of Q-Switched Lasers For Tattoo Removal? Discover The Gold Standard In Skin Safety

Learn why Q-switched lasers are the safest choice for tattoo removal, featuring nanosecond precision and selective wavelength technology.

What Is The Benefit Of Using A Vertical Stack Laser In Laser Equipment? Maximize Your Device's Operational Lifespan

Learn how top-tier vertical stack lasers extend the lifespan and durability of professional medical aesthetic equipment for long-term reliability.

What Are The Functions Of The Different Treatment Tips For The Nd Yag Laser? Optimize Pigment Removal & Rejuvenation

Learn how 1064nm, 532nm, and 1320nm tips function in ND Yag Lasers to target tattoos, sun spots, and skin texture for professional clinical results.

What Is The Principle Of Hair Removal Using An 808Nm Diode Laser? Master Selective Photothermolysis For Smooth Skin

Learn how the 808nm diode laser uses selective photothermolysis to target melanin and destroy hair follicles for permanent reduction results.

What Is The Primary Function Of Using 70% Isopropyl Alcohol For Local Cleaning? Ensure Precision In Co2 Laser Therapy

Learn why 70% isopropyl alcohol is vital for degreasing and disinfecting skin to ensure uniform energy absorption in Fractional CO2 Laser treatments.

What Is The Mechanism Of Action Of High-Precision Co2 Fractional Lasers? Revolutionize Atrophic Acne Scar Repair

Learn how CO2 fractional lasers utilize 10,600 nm wavelengths and MTZs to stimulate collagen and effectively treat deep atrophic acne scars.

Why Is A Minimum Incubation Time Of 60 Minutes Required For 5-Ala After Co2 Fractional Laser? Ensure Clinical Efficacy

Learn why the 60-minute incubation for 5-ALA is critical for biochemical conversion to PpIX following CO2 Fractional Laser pretreatment.

How Do Medical-Grade Laser Systems Suppress Hair Growth In Ear Reconstruction? Precision Care For Aesthetic Maintenance

Learn how Ruby, Alexandrite, and Diode lasers use photothermal interaction to suppress hair growth in postoperative ear reconstruction care safely.

What Technical Value Does A 3D Digital Imaging System Provide? Precision Volume Tracking For Keloid Treatment Evaluation

Discover how 3D digital imaging provides quantitative data, volume reduction metrics, and objective evidence for keloid treatment outcomes.

What Role Does Ablative Radiofrequency (Rf) Play In Restoring The Vaginal Microenvironment? Boost Mucosal Defense Today

Learn how Ablative RF restores vaginal health by stimulating glycogen production, balancing pH levels, and rebuilding beneficial bacteria.

What Is The Technical Function Of An 810Nm High-Power Diode Laser? Optimize Your Clinic's Hair Removal Results

Learn how the 810nm diode laser uses selective photothermolysis for deep penetration and safe, effective hair removal for Fitzpatrick types II-IV.

What Are The Clinical Advantages Of Combining Subcision With Co2 Fractional Laser Therapy For Atrophic Scars?

Discover why combining subcision with CO2 Fractional Laser therapy offers superior results for atrophic scars through synergistic collagen remodeling.

Why Are Standard Laser Safety Goggles Sometimes Insufficient For Eyebrow Hair Removal? Prevent Ocular Damage Now

Learn why tissue transmission bypasses standard laser goggles during eyebrow hair removal and how to ensure proper ocular safety.

What Is The Technical Principle Behind High-Power Laser Hair Removal? Master Selective Photothermolysis For Hirsutism

Understand how selective photothermolysis and melanin targeting in high-power laser systems effectively treat hirsutism and permanent hair reduction.

Why Is A Multi-Session Protocol Necessary For Sui Laser Treatment? Ensure Long-Term Pelvic Health And Results

Learn why a multi-session protocol and annual maintenance are essential for managing SUI with laser technology to ensure lasting collagen remodeling.

Why Is The 1064 Nm Wavelength Preferred For Treating Skin Pigment In Darker Skin? Safety & Efficacy Explained

Learn why the 1064 nm wavelength is the gold standard for treating deep pigmentation in Asian and darker skin tones while preventing thermal burns.

What Is The Primary Function Of A 10,600-Nm Co2 Fractional Laser System? Master Skin Resurfacing And Tissue Remodeling

Discover how the 10,600-nm CO2 fractional laser uses fractional photothermolysis to stimulate collagen, treat deep scars, and resurface facial skin.

Why Is The Application Of Topical Anesthetic With Occlusion Necessary? Maximize Co2 Laser Scar Treatment Efficacy

Learn why anesthetic occlusion is essential for CO2 fractional laser scar treatment to ensure deep analgesia and optimal thermal energy delivery.

What Is The Primary Function Of Ablative Fractional Co2 Laser (Afxl) In Skin Cancer? Boost Drug Delivery Efficacy

Learn how AFXL acts as a Laser-Assisted Drug Delivery (LADD) tool to enhance the treatment of superficial BCC and SCCis through skin barrier breach.

What Is The Mechanism By Which Fractional Co2 Laser Promotes Skin Recovery In Vulvar Lichen Sclerosus? Restore Elasticity

Learn how fractional CO2 laser uses segmented ablation and thermal stimulation to remodel collagen and treat Vulvar Lichen Sclerosus effectively.

What Are The Specific Applications Of Using Cross-Polarized Imaging (Cpi)? Master Sub-Surface Skin Analysis

Unlock clinical precision with CPI mode to filter glare, measure erythema, and analyze skin tone uniformity for objective skin assessments.

What Are The Advantages Of Skin Melanin And Erythema Index Testers? Elevate Post-Op Care With Objective Data

Learn how skin melanin and erythema index testers provide precise, objective data for post-operative recovery over subjective visual observation.

How Do Multispectral Skin Analyzers Evaluate Anti-Wrinkle Efficacy For Nanoparticles? Proven Data For Clinical Success

Discover how multispectral skin analyzers provide objective, quantitative data to validate the anti-wrinkle efficacy of cosmetic nanoparticles.

What Key Role Do Microthermal Treatment Zones (Mtzs) Play In Fractional Laser Technology? Enhance Skin Regeneration

Learn how Microthermal Treatment Zones (MTZs) enable rapid healing and superior skin resurfacing through precision fractional laser technology.

What Are The Advantages Of Using Co2 Laser Systems For Treating Linear Or Giant Porokeratosis? Precision Skin Repair

Learn how CO2 laser systems provide precise ablation, minimal scarring, and faster recovery for linear or giant porokeratosis treatments.

Why Does Blood Expulsion During Psf Improve Hair Removal? Maximize Laser Efficiency For Better Results

Learn how Pneumatic Skin Flattening (PSF) removes hemoglobin to clear a path for laser energy, boosting hair removal efficiency and safety.

What Is The Mechanism And Clinical Role Of The Co2 Fractional Laser In Treating Photoaged Skin? Revitalize Skin Aging

Learn how 10600 nm CO2 Fractional Lasers utilize Micro-Thermal Zones and dermal remodeling to effectively treat deep wrinkles and photoaged skin.

Why Are High-Precision Digital Cameras And Standardized Photography Protocols Essential For Clinical Skin Evaluations?

Learn how standardized photography and high-precision imaging provide objective data and scientific rigor for skin tightening treatment evaluations.

What Are The Technical Advantages Of Using Professional Microneedling Tools? Master Precision And Consistent Results

Discover why professional microneedling tools outperform manual injections with superior depth control, consistency, and enhanced patient comfort.

What Technical Advantages Does A Co2 Laser Provide For Acne Inversa? Precision, Hemostasis, And Faster Healing

Learn how CO2 lasers optimize Acne Inversa excision through bloodless surgery, precise tissue vaporization, and reduced postoperative pain.

What Is The Primary Technical Function Of The Ablative Co2 Laser In The Conservative Combined Treatment Of Skin Lesions?

Learn how CO2 lasers optimize skin lesion treatments through precise tumor debulking, hemostasis, and enhanced drug delivery for better outcomes.

What Is The Function Of The 808–810 Nm Diode Laser In Hair Removal? Optimize Results As Hair Characteristics Change

Learn how the 808–810 nm Diode laser acts as a transitional tool to target thinning hair and residual melanin for effective long-term hair removal.

What Is The Primary Mechanism Of Action For Fractional Co2 Laser In Ecd? Dual-Action Treatment Insights

Learn how Fractional CO2 Laser ablation treats ECD through thermal destruction of foamy cells and vascular coagulation for effective plaque reduction.

What Is The Application Value Of Skin Tester Imaging Systems In The Early Screening Of Hidradenitis Suppurativa?

Discover how high-resolution skin imaging detects subclinical inflammation and follicular occlusion to prevent Hidradenitis Suppurativa progression.

Why Is Topical Anesthetic Cream Necessary For Sui Co2 Laser Treatment? Unlock Patient Comfort & Clinical Efficacy

Learn why topical anesthetic is crucial for SUI fractional CO2 laser procedures to manage pain and enable optimal clinical results.

What Is The Mechanism Of Action For A Co2 Fractional Laser? Expert Guide To Skin Rejuvenation Science

Learn how CO2 fractional lasers use selective photothermolysis and microscopic ablation zones to stimulate collagen and repair skin.

Why Is The Fractional Co2 Laser Scanning Process Performed In Two Passes? Optimize Surgical Scar Remodeling Results

Learn why the two-pass fractional CO2 laser technique is essential for disrupting collagen and improving surgical scar recovery outcomes.

Why Must The Carrier Gel And The Chromophore Gel Be Mixed Immediately Before Use? Maximize Fle Potency And Energy

Learn why immediate mixing and 2mm gel thickness are vital for Fluorescent Light Energy (FLE) skin treatments to ensure potency and uniform energy.

Why Is The Application Of Sunscreen Necessary Following A Co2 Fractional Laser Treatment? Prevent Pih And Ensure Healing

Learn why medical-grade sunscreen is essential after CO2 fractional laser to prevent hyperpigmentation and protect your skin's recovery process.

What Is The Technical Significance Of 50-1000 Ms Pulse Widths In Diode Lasers? Optimizing Safety And Results

Learn how adjustable pulse widths (50–1000 ms) in diode lasers optimize thermal relaxation for safer, effective hair removal across all skin types.

What Is The Primary Purpose Of Pre-Cooling In Ruby Laser Hair Removal? Ensure Safe & Painless Treatments

Learn how pre-cooling protects the epidermis, reduces pain, and prevents erythema during Ruby laser hair removal for better clinical results.

What Are The Synergistic Advantages Of Combining Fractional Co2 Laser With Hair Growth Factors? Unlock Follicle Power

Learn how fractional CO2 lasers create micro-channels for deep growth factor delivery, bypassing skin barriers to maximize hair regrowth results.

Why Is A Co2 Fractional Laser More Effective For Deep Periorbital Wrinkles? Achieve Superior Structural Skin Repair

Learn why CO2 fractional lasers outperform other devices for deep wrinkles through ablation and thermal collagen remodeling.

Why Are Professional Injection Or Microneedle Devices Necessary For Mesotherapy In Treating Fphl? Boost Growth Results

Learn how professional microneedle devices bypass the scalp barrier to deliver nutrients directly to follicles for effective FPHL treatment.

What Critical Protective Functions Do Epidermal Cooling Devices Provide? Master Laser Safety & High-Fluence Results

Learn how epidermal cooling acts as a thermal barrier in laser hair removal, enabling higher energy densities while preventing burns and scarring.

What Are The Physical Advantages Of Using A Contact-Type Treatment Head For Removing Eyelid Tattoos? Boost Efficacy

Learn how contact-type treatment heads improve eyelid tattoo removal through mechanical compression, blood displacement, and optimized laser energy.

How Do The Vertical And Horizontal Effects Of Fractional Co2 Laser Systems Treat Atrophic Scars? Master Scar Revision

Learn how Fractional CO2 lasers combine vertical ablation and horizontal coagulation to rebuild collagen and smooth deep atrophic scars effectively.

What Is The Mechanism Of Ttcrf Devices For Vaginal Laxity? Science Of Radiofrequency In Women’s Wellness

Learn how Temperature-controlled Radiofrequency (TTCRF) uses thermal energy to stimulate collagen, treating vaginal laxity and urinary symptoms.

Why Is The Smart Stack Scanning Mode Critical For Fractional Co2? Unlock Precision In Laser Resurfacing

Learn how Smart Stack scanning optimizes Fractional CO2 treatments by balancing pulse depth and thermal control for superior skin remodeling.

What Are The Clinical Advantages Of Using A Vaginal Laser Probe With A Pyramidal-Shaped Tip? Precision 360° Care

Learn how pyramidal-shaped tips enhance vaginal laser treatments with 360-degree emission, eliminating blind spots and manual rotation errors.

How Does The Second-Pass Lf-Hd Scanning Mode Of A Fractional Co2 Laser Improve Scar Appearance? Master Surface Smoothing

Learn how the LF-HD mode of CO2 fractional lasers refines scar texture through high-density superficial ablation and dermal papilla regeneration.

How Does The 10,600 Nm Co2 Fractional Laser Remodel Scars? Transform Chronic Scars With Precision

Learn how the 10,600 nm CO2 fractional laser uses MTZs and thermal stimulation to break down rigid collagen and remodel chronic or hypertrophic scars.

Why Must Anesthetic Residue Be Removed Before Nd:yag Laser? Maximize Safety & Efficacy In Hair Removal

Learn why removing anesthetic cream with medical gauze is critical for Nd:YAG 1,064 nm laser safety, cooling efficiency, and treatment results.

Why Must Patients Be Evaluated For Metal Oxide Tattoos Before Laser Hair Removal? Avoid Permanent Discoloration

Learn why evaluating metal oxide-based tattoos is critical before laser hair removal to prevent irreversible pigment darkening and skin damage.

How Does Pulse And Cw Switching Function In Laser Panels Aid Clinical Application? Mastering Tissue Control

Learn how Pulse and Continuous Wave switching optimizes medical laser treatments by balancing precise tissue ablation with effective coagulation.

Why Is Regular Output Calibration Essential For Medical Laser Safety? Ensure Clinical Precision And Patient Protection

Learn why calibrating medical laser devices is vital to neutralize ±20% manufacturing variances and prevent clinical injuries or treatment failure.

What Is The Primary Role Of A Fractional Co2 Laser In Palmar Hyperhidrosis? Enhance Transdermal Drug Delivery

Learn how Fractional CO2 Lasers create Micro-Thermal Zones to bypass the palmar skin barrier and optimize hyperhidrosis treatments.

How Does The Principle Of Selective Photothermolysis Guide The Application Of Laser Equipment? Master Precise Treatments

Learn how Selective Photothermolysis optimizes wavelength, pulse duration, and fluence for safe, effective pigmented lesion removal.

What Structural Changes Occur In Collagen Components Within Scar Tissue? Optimize Scars With Co2 Fractional Laser

Learn how CO2 Fractional lasers replace disorganized Type III collagen with organized Type I collagen to effectively remodel and flatten scar tissue.

Why Is The Laser Wavelength For Professional Hair Removal Typically 600-1100 Nm? Maximize Results & Safety

Learn why the 600-1100 nm optical window is vital for laser hair removal, ensuring deep penetration while protecting surrounding skin and vessels.

In What Ways Does Fractional Laser Technology Improve Upon Traditional Ablative Lasers? Enhanced Safety And Faster Healing

Discover how fractional lasers outperform traditional ablation through micro-hole technology, rapid recovery, and reduced risks in rejuvenation.

What Is The Logic Behind The 694Nm-1064Nm Wavelength Range In Medical Laser Hair Removal? Expert Technical Insights

Learn how selective photothermolysis and the 694nm-1064nm spectrum optimize melanin absorption and safety for professional laser hair removal.

Why Is A Fractional Co2 Laser Used In Combination With Exosome Gels? Accelerate Acne Scar Healing And Recovery

Discover how fractional CO2 lasers and exosome gels work together to create deep skin channels, boost collagen, and significantly reduce downtime.

How Do Non-Ablative Laser Systems Treat Scars Without Damaging Skin? Master The Art Of Deep Dermal Remodeling

Learn how 1064nm Nd:YAG lasers bypass the epidermis to treat scars through neocollegenesis with minimal downtime and zero surface damage.

What Are The Safety Advantages Of Utilizing Ultra-Short Pulse Technology In Co2 Lasers? Protect Skin While Healing

Learn how ultra-short pulse technology in CO2 lasers minimizes thermal damage and reduces risks like PIH during scar revision procedures.

What Role Does A High-Power Semiconductor Laser System Play In The Hair Removal Process? Boost Clinical Efficiency

Learn how high-power semiconductor lasers use selective photothermolysis and 3000W peak power to achieve faster, clinical-grade hair removal results.

How Do Lllt Devices Contribute To The Combination Treatment Of Fphl? Boost Hair Density With Synergistic Therapy

Learn how Low-Level Laser Therapy (LLLT) and topical treatments work together to stimulate follicles and maximize hair density for FPHL recovery.

What Role Does A Fractional Co2 Laser System Play In Facial Regeneration? Master Dermal Restructuring And Rejuvenation

Explore how Fractional CO2 Lasers drive dermal matrix remodeling, collagen synthesis, and biological skin renewal for clinical-grade rejuvenation.

What Is The Purpose Of Co2 Laser Treatment? Advanced Skin Resurfacing For Texture And Aging

Understand the objectives of CO2 laser treatment, from collagen stimulation and wrinkle reduction to professional acne scar repair.

What Are The Advantages Of A Contact Laser Compared To A Non-Contact Laser? Maximize Energy And Speed Recovery

Learn how contact lasers minimize light scatter and maximize tissue penetration for more efficient, targeted, and faster therapeutic treatments.

How Does Red Light Therapy Contribute To Hair Regrowth? Boost Follicle Energy And Scalp Health

Learn how red light therapy stimulates ATP and reduces inflammation to promote hair regrowth. Discover timelines, protocols, and safety tips.

What Is The Typical Downtime After A Co2 Laser Resurfacing Treatment? Recovery Guide For Clinics And Patients

Understand the 9-day CO2 laser recovery timeline. Learn essential pre-treatment protocols and aftercare strategies for optimal skin regeneration.

How Is The Skin Treatment Adapted For Sensitive Skin? Gentle Solutions For Radiant Results

Learn how sensitive skin treatments use vacuum technology and anti-inflammatory serums to achieve deep cleaning without irritation or redness.

How Should One Prepare For A Laser Hair Removal (Lhr) Session? Essential Pre-Treatment Guide For Safe, Smooth Results

Learn how to prepare for laser hair removal: shaving tips, sun avoidance, and medication guidelines to ensure maximum safety and effectiveness.

What Is The Proposed Mechanism By Which Low-Level Laser Treatment (Lllt) Stimulates Hair Growth? Science Of Hair Regrowth

Learn how LLLT stimulates hair growth through photobiomodulation, ATP production, and reversing follicle miniaturization for thicker, healthier hair.

How Does The Wand-Like Device Used In This Skin Treatment Function? Unlock Deep Pore Infusion Technology

Learn how pneumatic vacuum wands revolutionize skin treatments by simultaneously extracting impurities and infusing nourishing serums deeply.

How Do The 1064 Laser And Pico Laser Compare? Choosing Between Photothermal And Photomechanical Precision

Compare 1064nm and Pico lasers: discover differences in pulse duration, thermal impact, and clinical uses for scars versus tattoo removal.

What Is Radiofrequency (Rf) And Where Does It Fall On The Electromagnetic Spectrum? Explore Its Safe, Low-Energy Power.

Understand Radiofrequency (RF) energy, its place on the EM spectrum, and why its low-energy profile is essential for safe medical and tech applications.

What Is Radiofrequency Energy (Rf Energy)? Discover The Science Of Non-Invasive Skin Tightening

Learn how RF energy uses controlled thermal heat to stimulate collagen production for effective, non-invasive skin tightening and rejuvenation.

What Are The Technical Advantages Of Diode-Pumped Laser Technology? Unlock Precision And Efficiency In Hair Removal

Explore the benefits of diode-pumped technology, including high efficiency, beam stability, and precise pulse control for superior hair removal.

What Are The Fundamental Principles Of Pico-Lasers? Discover The Speed And Precision Of Picosecond Technology

Learn how Pico-lasers use ultra-short pulses and mechanical shattering to treat tattoos, pigments, and skin aging with minimal thermal damage.

Why Is The 10,600 Nm Wavelength Co2 Laser Essential? The Gold Standard For Deep Skin Resurfacing & Collagen Renewal

Learn why the 10,600 nm CO2 laser is the gold standard for ablative skin resurfacing, targeting deep wrinkles, scars, and tissue remodeling.

What Are The Technical Benefits Of Using A 12Mm Spot Size And 80-100 J/Cm2 In Fractional Co2 Laser Treatment?

Learn how a 12mm spot size and 80-100 J/cm² energy density optimize Fractional CO2 Laser treatments for deep dermal remodeling and efficiency.

What Are The Technical Advantages Of Using 650-Microsecond Pulse Technology In Nd:yag Lasers For Surgical Scars?

Learn how 650-microsecond Nd:YAG technology outperforms millisecond lasers by utilizing thermal relaxation time for safer, precise scar revision.

Why Is The Pinhole Technique Using Co2 Laser Commonly Adopted For Syringoma? Discover The Secret To Scar-Free Removal

Learn why the CO2 Laser Pinhole Technique is the gold standard for Syringoma treatment, offering deep tumor removal with minimal scarring risk.

Why Is A Specialized Vaginal Treatment Probe Necessary For Fractional Co2 Laser Therapy? Ensure Safety And Precision

Learn why specialized probes are essential for CO2 laser therapy, ensuring 360-degree coverage and safe tissue regeneration in gynecology.

What Role Does A Medical-Grade Oscillating Cold Air Cooling System Perform During And After Laser Treatment? Elevate Safety

Learn how medical-grade cold air cooling protects the skin, reduces pain, and allows for higher energy laser treatments with faster recovery.

How Does A High-Precision Skin Tester Assist In Clinical Decision-Making And Patient Management? Data-Driven Skin Care

Learn how high-precision skin testers use multi-spectral imaging to provide objective data for personalized clinical treatments and patient trust.

What Is The Physical Principle Behind 800Nm Diode Laser Hair Removal? Master Selective Photothermolysis For Clinics

Learn how the 800nm wavelength targets melanin via selective photothermolysis to disable hair follicles while protecting surrounding skin tissue.