December 18, 2025
What is the difference between Fraxel laser and UltraPulse CO2 laser?
Laser skin treatments have transformed the way we approach ageing, scarring, and skin rejuvenation.If you’re exploring advanced laser skin treatments, you’ve likely come across two popular options: Fraxel laser and UltraPulse CO2 laser. Both are highly effective for skin rejuvenation, but they work in very different ways and are designed to treat different skin concerns.
Understanding the difference between these two treatments can help you make a confident, informed decision. In this guide, we break everything down in clear, simple language so you know exactly what to expect and which option may suit your skin best.
How These Lasers Work: Technology Breakdown
Fraxel Laser: Gentle, Fractional Renewal
Fraxel laser is a fractional, non-ablative laser treatment. This means it treats microscopic areas of the skin while leaving surrounding tissue untouched. The laser creates controlled micro-injuries beneath the skin’s surface, stimulating natural collagen production without removing the top layer of skin.
Because the skin’s surface remains mostly intact, healing is quicker and the risk of complications is lower. Results develop gradually over time as new collagen forms.
Fraxel laser is commonly used to improve:
Fine lines and early wrinkles
Mild acne scarring
Pigmentation and sun damage
Uneven skin tone and texture
It is an excellent choice for patients looking for subtle, natural-looking improvements with minimal disruption to their daily routine.
UltraPulse CO2 Laser: Deeper Skin Remodeling
UltraPulse CO2 laser is a fractional ablative laser and is considered one of the most advanced resurfacing technologies available. Unlike Fraxel, it works by removing tiny columns of damaged skin tissue while heating deeper layers to stimulate intense collagen regeneration.
This deeper penetration allows UltraPulse CO2 laser to treat more severe skin concerns in fewer sessions. The treatment is more intensive, but the results can be dramatic and long-lasting.
UltraPulse CO2 laser is particularly effective for:
Deep wrinkles and fine lines
Moderate to severe acne scars
Sun-damaged and ageing skin
Skin laxity and rough texture
Different treatment depths can be customised depending on your skin condition and goals, making it a highly versatile option when performed by experienced professionals.
Treatment Experience: What to Expect
Sessions & Timeline
Fraxel Laser
Typically requires a course of 3 to 5 treatments
Sessions are spaced several weeks apart
Results develop gradually as collagen rebuilds
Downtime is usually mild, lasting a few days
UltraPulse CO2 Laser
Often delivers significant improvement in 1 or 2 sessions
Healing time is longer, usually around 10 to 14 days
Redness may persist for several weeks as the skin remodels
Results continue to improve over several months
Your practitioner will advise on the most suitable treatment schedule based on your skin’s needs.
Comfort & Sensation During Treatment
Fraxel laser treatment is generally well tolerated. A topical numbing cream is applied beforehand, and most patients describe the sensation as warmth or mild tingling.
UltraPulse CO2 laser is more intensive. Stronger numbing agents or additional pain management may be used to ensure comfort. While the treatment is more involved, careful aftercare helps ensure a smooth recovery.
Results: What Each Laser Can Achieve
Fraxel laser offers gradual improvements that look natural and refreshed. It is ideal for maintaining skin quality, preventing early signs of ageing, and improving texture over time.
UltraPulse CO2 laser delivers more visible resurfacing and tightening. It is often chosen by patients seeking noticeable correction of deeper wrinkles, scarring, or significant sun damage.
In summary:
Fraxel provides subtle, progressive results with minimal downtime
UltraPulse CO2 offers more dramatic improvement with longer recovery
Both treatments stimulate collagen and improve overall skin quality
The right choice depends on your skin concerns, expectations, and lifestyle.
Choosing the Right Treatment for Your Skin
There is no single “best” laser treatment for everyone. The ideal option depends on your skin type, concerns, and how much downtime you can manage.
When Fraxel Might Be Best
You want minimal downtime
You have mild to moderate skin concerns
You prefer gradual, natural-looking results
You are maintaining skin health and texture
When UltraPulse CO2 Might Be Best
You have deeper wrinkles or acne scars
You want more noticeable results in fewer sessions
You are comfortable with a longer recovery period
You are seeking advanced skin resurfacing
In some cases, a combination approach may be recommended to achieve optimal results over time.
Trending Questions Answered
Is one laser better than the other?
Neither treatment is universally better. Fraxel and UltraPulse CO2 lasers are designed for different skin concerns. The best option depends on your individual needs and treatment goals.
How long does it take to see results?
Fraxel results appear gradually over weeks as collagen builds. UltraPulse CO2 results are noticeable once healing is complete, with continued improvement over several months.
Are the results permanent?
Both treatments provide long-lasting improvement, but the natural ageing process continues. Maintenance treatments and good skincare can help prolong results.
FAQs
Are these laser treatments safe?
Yes, when performed by experienced medical professionals. A thorough consultation ensures the treatment is suitable for your skin type and concerns.
Can these treatments be used on all skin tones?
Fraxel is generally suitable for a wider range of skin tones. UltraPulse CO2 laser requires careful assessment, particularly for deeper skin tones, to minimise pigment changes.
What is the recovery process like?
Fraxel recovery is usually quick, with redness lasting a few days. UltraPulse CO2 laser requires more downtime, including redness, peeling, and sensitivity during healing.
Can I wear make-up after treatment?
After Fraxel, make-up is usually possible within a few days. After UltraPulse CO2 laser, make-up should be avoided until the skin has fully healed.
Thinking About Laser Treatment in London?
At Dr L’Art Clinic London, every laser treatment plan is carefully tailored to your skin, goals, and lifestyle. Whether you are considering the gentle rejuvenation of Fraxel laser or the advanced resurfacing power of UltraPulse CO2 laser, our experienced team will guide you through every step.
If you are unsure which treatment is right for you, we recommend booking a personalised consultation at Dr L’Art Clinic London. Our specialists will assess your skin and create a treatment plan designed to deliver safe, natural, and long-lasting results.











