Fractional Laser Treatments: Technology Guide & Treatment Results 2025
Complete guide covering CO2, Erbium, and non-ablative fractional lasers for skin resurfacing, scar reduction, and wrinkle improvement


By Dr. Sarah Chen, Dr. Jennifer Park
MD, FAAD • MD, PhD
TL;DR
17 min read
Fractional laser treatments use a pattern of microscopic treatment zones that leave surrounding tissue intact, enabling faster healing and reduced side effects compared to traditional full-surface laser resurfacing. Available in ablative (CO2, Erbium) and non-ablative modes, fractional lasers treat only a fraction of the skin surface while stimulating collagen production throughout. This technology effectively treats wrinkles, scars, sun damage, and skin texture irregularities with less downtime than traditional resurfacing.
Key Takeaways:
- 1
Fractional lasers treat only a fraction of skin surface, leaving surrounding tissue intact
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Available in ablative (removes skin) and non-ablative (heats without removal) modes
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Ablative fractional lasers (CO2, Erbium) provide more dramatic results with 7-14 days downtime
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Non-ablative fractional lasers offer minimal downtime (1-2 days) with more gradual results
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Effectively treats wrinkles, scars, sun damage, and skin texture irregularities
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Stimulates collagen production throughout treated and surrounding areas for comprehensive improvement
Fractional laser treatments use advanced laser technology to create microscopic treatment zones in the skin, leaving surrounding tissue intact for faster healing. This approach allows for deep skin resurfacing with reduced downtime compared to traditional ablative lasers.
What is Fractional Laser Technology? Fractional laser technology treats only a fraction of the skin surface at a time. The technology works by delivering laser energy in a grid pattern, creating controlled micro-injuries that stimulate the body's natural healing process and collagen production.
Technology Advantages
- Precise Treatment: Targets specific areas without affecting surrounding skin
- Faster Recovery: Untreated skin helps accelerate the healing process
- Customizable: Adjustable depth and coverage for optimal results
Types of Fractional Lasers
CO2 vs Erbium vs Non-Ablative
- CO2 Fractional Laser (10600nm): Ablative fractional laser using carbon dioxide for deep skin resurfacing and the most dramatic results. Best for deep wrinkles, acne scars, severe sun damage.
- Erbium Fractional Laser (2940nm): Gentler ablative option with less downtime than CO2, ideal for moderate skin concerns. Best for fine lines, mild to moderate scars, age spots, and sensitive skin.
- Non-Ablative Fractional Laser: Non-invasive treatment that stimulates collagen without damaging the skin surface. Best for mild wrinkles, pore size reduction, and overall skin quality improvement.
Treatment Process & Aftercare
Consultation (30 min): Skin analysis and treatment plan development.
Preparation (20 min): Skin cleansing and numbing cream application.
Treatment (30-60 min): Fractional laser application with precise settings.
Recovery (Ongoing): Post-treatment care and healing instructions. Redness, swelling, and skin peeling are common during the initial healing phase.
Before & After Care Requirements
Before Treatment:
- Avoid sun exposure for 2-4 weeks before treatment
- Stop using retinoids and exfoliating products 1 week prior
- Arrive with clean, makeup-free skin
After Treatment:
- Keep skin moisturized and protected from the sun at all times
- Avoid picking or scratching treated, peeling areas
- Use only gentle, fragrance-free skincare products
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