Non-ablative fractional lasers cause microscopic injury to the deeper layer of skin - the dermis. They can help with scars and skin aging and are generally safe with a few days of downtime.
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Fractional ablative lasers are highly effective for skin resurfacing and the treatment of scars, however the recovery time and risks mean that they are not suitable for all patients. This led to the development of non-ablative fractional lasers. Whilst these generally will not achieve the same degree of improvement as fractional ablative lasers they can cause significant improvement with minimal downtime and low risks – even in pigmented skin types. I use the Palomar ICON and the Lumenis Resurfx.
Fractional non-ablative lasers create microscopic columns of thermal injury in the skin leaving the outer layers intact. This stimulates collagen production and promoting skin resurfacing with minimal downtime.
Indications for Fractional Non-Ablative Laser Treatment
Fractional non-ablative lasers are primarily used to treat skin conditions that require collagen stimulation or skin resurfacing with minimal downtime. Some common indications for this treatment include:
Fine lines and wrinkles
Acne scars
Surgical or traumatic scars
Mild to moderate sun damage and age spots
Skin texture irregularities
Enlarged pores
Skin tightening and rejuvenation
They can also help with pigmentation, however will generally be less effective than more specialist treatments for this indication.
What to Expect During Treatment
Your skin will be cleaned and a topical anesthetic may be applied to minimize discomfort during the procedure. The laser deliver controlled pulses of energy to the targeted areas. Several passes may be required in each area. Immediately after the treatment the skin appears red and slightly swollen, similar to sun burn.
The initial healing process for fractional non-ablative laser treatment takes a few days with most of the redness and swelling settling with a few days and the skin returning to normal within a week in most cases.
Improvements in the skin appearance continue to develop for 6 or more weeks after treatment as new collagen is formed with most patients needing a course of several treatments to see improvement.
Risks and Side Effects
Risks include pigmentary disturbance (the skin may be lighter, darker or redder) usually this will be temporary, however rarely this may be permanent. Other rare risks include scarring or keloid scarring, grid marks and Herpes (cold sore) virus reactivation or other infection. You will be asked to sign a consent form on the day of treatment. This contains a full list of potential risks. Please read this carefully prior to attending for the procedure:
Questions about non-ablative fractional lasers
What is non-ablative fractional laser treatment?
Non-ablative fractional laser treatment is a laser procedure that targets skin concerns, such as fine lines, wrinkles, acne scars, sun damage, and skin texture irregularities. The treatment stimulates collagen production and promotes skin resurfacing without removing the skin's outer layers.
How does non-ablative fractional laser treatment work?
The erbium glass laser emits controlled pulses of light that create microscopic columns of thermal injury in the deeper layers of the skin while leaving the outer layers intact. This process stimulates collagen production and promotes skin resurfacing, improving the appearance of the skin.
Is non-ablative fractional laser treatment painful?
Some patients may experience mild to moderate discomfort during the treatment, often described as a sensation of heat or prickling. Topical anesthetics or cooling devices can be used to minimize discomfort during the procedure.
How many treatments are needed for optimal results?
The number of treatments required varies depending on the specific skin concern and the individual's response to the treatment. On average, most patients require 3-6 sessions, spaced 4-6 weeks apart, to achieve optimal results.
What should I expect during the recovery period?
After a non-ablative fractional laser treatment, patients will generally experience temporary redness and swelling in the treated area. These side effects usually resolve within a day or two. It is essential to follow aftercare instructions, such as avoiding sun exposure and using sunscreen, to minimize the risk of complications.
How long do the results of non-ablative fractional laser treatment last?
For some patients, the results can be long-lasting, while others may require maintenance treatments to maintain the desired appearance.
Is non-ablative fractional laser treatment suitable for all skin types?
Non-ablative fractional laser treatment is safe and effective for most skin types.
Can non-ablative fractional laser treatment be combined with other treatments?
Yes, non-ablative fractional laser treatment can be combined with other treatments such as pulsed dye laser treatment or intense pulsed light treatment.
How much does non-ablative fractional laser treatment cost?
The cost of non-ablative fractional laser treatment varies depending on factors such as the size of the treatment area and the number of sessions required. You will be provided with a quotation for treatment after your consultation. A guide to prices is available here.
About Dr Magnus Lynch
MA(Cantab) DPhil(Oxon) MRCS FRCP
I am a London-based Consultant Dermatologist and Dermatological Surgeon. I am highly experienced in skin cancer diagnosis, Mohs micrographic surgery, acne, rosacea, acne scarring and laser treatments. I studied at the Universities of Cambridge and Oxford, and completed my dermatology training and Mohs fellowship at the prestigious St John's Institute of Dermatology. I graduated from medical school in 2003 and have worked exclusively in Dermatology since 2012.
I lead a research team at King's College London investigating the molecular biology of skin cancer. In recent years I have been involved in Media Appearances, including the Channel 5 series 'Skin A&E', where I perform skin surgeries and treat various skin conditions.
My NHS practice is at Guy's Hospital. I consult with private patients at OneWelbeck (near to Bond Street station) and on Harley Street. Book A Consultation.
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