Most laser resurfacing works by heating the skin. That heat is what prompts collagen production, and it is also what causes the redness, the swelling and the week of recovery that follows.
Cool Laser takes a different route to a similar destination. It resurfaces without the same thermal load, which changes what recovery looks like and changes who the treatment is suitable for.
What is Cool Laser?
A resurfacing treatment that removes the outermost layer of skin using a cold ablation process rather than a heating one.
Conventional ablative lasers vaporise tissue with heat, and that heat spreads a short distance into the surrounding skin. The spread is not wasted, since it contributes to the tightening effect, but it is also responsible for most of the downtime and for the risk of pigment change afterwards.
Cold ablation removes the tissue while transferring far less heat into what remains. The surface is treated, the layer beneath is disturbed less, and the skin has less thermal injury to recover from.
What that means in practice
Shorter recovery, lower risk of post-inflammatory pigmentation, and a treatment that suits skin types where heat-based resurfacing needs more caution. The trade is that a treatment producing less thermal injury also produces less of the tightening that comes from it, so it is not a like-for-like replacement for deeper resurfacing.
What does it treat?
- Dull, tired-looking skin and uneven tone
- Superficial pigmentation and sun damage
- Fine lines and early textural change
- Rough or congested surface texture
- Enlarged-looking pores
It is a skin quality treatment rather than a corrective one. People who have it are usually not fixing a defined problem so much as improving how their skin looks overall, and that is a legitimate reason to have something done.
What it does not do
Deep acne scarring, established wrinkles and significant laxity all sit deeper than a surface treatment reaches. Where those are the concern, CO2 resurfacing goes further, and Morpheus8 works at a depth this does not.
Being told a gentler treatment will fix a deep problem is the most common way people end up disappointed, and it is usually the clinic’s fault rather than the device’s.
What does a session involve?
Numbing cream first, left to work for around half an hour. The treatment itself is quick, typically fifteen to twenty minutes for a full face.
Most people describe it as warm and prickling rather than painful, and notably more comfortable than heat-based resurfacing, which is the point. Cool air is used through the session.
What is the recovery like?
Redness afterwards, similar to mild sunburn, generally settling within a day or two rather than persisting for a week. The skin feels tight and dry, and there is usually light flaking over the following days rather than the sheet peeling associated with deeper ablative treatments.
Most people are back to normal activity immediately and back in makeup within a couple of days, though follow the clinic’s guidance rather than assuming a date.
Sun protection matters for weeks afterwards, not days. Newly resurfaced skin pigments readily, and treating pigmentation then exposing the skin to sun undoes the point of the treatment.
How many sessions?
It is generally a course rather than a single treatment, which follows from being a lighter approach. The number depends on your skin and what is being addressed, and it is agreed at consultation rather than sold as a package.
Results build over the weeks after treatment as the skin repairs, so the useful comparison is a photograph taken at the start rather than a daily assessment in the mirror.
Who does it suit?
People who want visible improvement without a week out of circulation. That covers a lot of ground: anyone who cannot take downtime for work, anyone with an event a few weeks away, and anyone nervous about more aggressive resurfacing who would rather begin somewhere gentler.
The lower thermal load also makes it a consideration where heat-based resurfacing needs more caution. That is a clinical judgement made at consultation and confirmed by patch test, not something to conclude from an article.
When it is not appropriate
Active infection or inflammation in the area, a recent tan or sun exposure, pregnancy, and certain medications all need discussing beforehand. Mention any history of cold sores, since preventative medication is usually given. A patch test is carried out before treatment in every case.
How it compares with other light resurfacing
LaseMD is non-ablative, meaning it heats without removing tissue, and it includes a serum applied through the channels it creates. Cool Laser is ablative, removing the surface layer, but with far less heat than conventional ablative treatment.
Both are light-downtime treatments delivered in courses, and they overlap in what they address. Which suits you depends on your skin, what is being treated and how it has responded to previous treatment, which is exactly the sort of thing an assessment settles and an article cannot.
Where it fits in a plan
Light resurfacing is often one component rather than the whole answer. It combines with treatments addressing different things: something for laxity, something for redness, something for pigment sitting deeper than a surface treatment reaches.
Sequencing and spacing matter when treatments are combined, and skin needs to recover fully between resurfacing sessions of any kind.
Getting assessed
Whether this is the right treatment depends on what is causing the appearance you want to change and how much recovery you can accommodate. Those two together decide it, more than any feature of the device.
Pulse Light Clinic is CQC-registered and doctor-and-nurse-led, and has been treating skin in London since 2001. You can read more about Cool Laser and how it is delivered here.
Book a consultation to have your skin assessed before starting a course.
