In short. What a resurfacing laser reaches that a peel cannot: wrinkles present at rest, textural scarring and deeper sun damage, and the open healing it requires.

Key points

  • Everything about resurfacing follows from its depth: the size of the change, the days of open healing, the infection risk, and the pigment risk.
  • A plan that offers the depth without the healing has not described the treatment.
  • A plan that offers the healing without the depth is describing a peel.

A resurfacing laser removes skin to a controlled depth and remodels what lies beneath. That one sentence carries both what the treatment can do and what it costs. It is the option for problems that sit deeper than the surface layers, and the depth that makes it effective is the same depth that makes the healing long.

What it reaches

Wrinkles that are present at rest, which by definition lie below the surface, soften because the skin around them is rebuilt rather than because the surface is replaced. Textural scarring improves for the same reason: the irregularity is in the deeper layers and in how the skin healed originally, and reaching that depth is what changes it. Sun damage that has gone beyond the surface, and pigment that a peel could not lift, are also within range. The change is structural in a way a peel's change is not.

Depth is what you are buying, and what you are paying

Everything about resurfacing follows from its depth: the size of the change, the days of open healing, the infection risk, and the pigment risk. A plan that offers the depth without the healing has not described the treatment. A plan that offers the healing without the depth is describing a peel.

What it costs in healing

The skin is open rather than flaking. It weeps, it crusts, and it needs washing and dressing on a schedule for the first days. It stays red for weeks after the surface has closed, and the redness fades gradually over months rather than days. Infection is a real risk while the skin is open, and it is one of the reasons the aftercare instructions matter as much as the treatment. Antiviral cover is usual if you carry the cold sore virus, because the injury can trigger a flare.

What lies beyond its reach

It does not tighten loose skin or reposition anything that has descended; those are surgical findings. It does not remove broken vessels reliably. It does not make a scar disappear, only improve it, and how much it improves varies between individuals and between scars. And it does not stop the skin ageing, so the result is durable rather than permanent.

What to settle before resurfacing

  • How deep the treatment will go, and why that depth rather than a shallower one.
  • What the first week of healing will actually look like, hour by hour, and who reviews the skin during it.
  • Whether antiviral cover is needed, and what the plan is if the pigment changes or a scar begins to form.

Resurfacing is the right option when the problem sits below the surface and the healing is acceptable, and the wrong one when the problem is superficial and a lighter plan would reach it. The resurfacing pages cover the treatment itself, the acne scar pages cover textural scarring, and the aftercare pages describe the days that follow.

Related reading

Frequently asked questions

What can resurfacing do that a peel cannot?

Reach deeper. A resurfacing laser removes skin to a controlled depth and remodels what lies beneath, which is what makes it the option for a wrinkle present at rest, for textural scarring, and for sun damage that has gone beyond the surface. A peel works on the layers above those, so it improves the surface over a problem rather than the problem itself.

How long is the healing after resurfacing?

Days to weeks, and it is open healing rather than flaking. The skin weeps, crusts and needs washing and dressing on a schedule; it stays red for weeks after the surface has closed and gradually settles over months. Infection is a real risk while the skin is open, and antiviral cover is usual if you carry the cold sore virus. The number of days cannot be shortened by planning.

Is the result permanent?

The problem treated does not come back in the same form, which is a genuine difference from a peel. What continues is ageing: the skin keeps changing, sun damage keeps accumulating unless it is prevented, and new lines form. So the result is durable rather than permanent, and a patient who does not protect the skin from the sun will lose much of what the treatment bought.

Risks & Limitations

  • Both options work by injuring the skin deliberately, and pigment change is the risk they share. The risk rises with depth and is materially greater in darker skin tones, and conservative settings there are the clinical plan rather than a compromise.
  • Post-inflammatory pigment change may take months to settle and may not settle completely. Treating it is harder than preventing it, and treating it with a further injury carries its own risk.
  • Deeper treatment leaves skin open rather than flaking. Infection is a real risk while the skin is open, and an untreated infection can lead to scarring that is permanent.
  • A cold sore flare can be triggered by either option in a patient who carries the virus. Antiviral cover before treatment reduces the risk rather than treating an outbreak that has already begun.
  • Scarring after resurfacing is uncommon and is more likely after a deeper treatment, after an infection, or in a patient with a keloid tendency.
  • Healing takes as long as it takes. Redness after resurfacing lasts for weeks and fades over months, and no clinician can shorten it or promise a date at which the skin will look unremarkable.
  • Neither option reverses sun damage permanently. Pigment can return, the skin continues to age, and a result that is not protected with sun avoidance and sunscreen will not hold.
  • Neither option tightens loose skin or repositions tissue that has descended. Those are surgical findings, and a plan that promises them with a peel or a laser has promised something the depth cannot deliver.

When to Seek Care

  • Increasing pain, spreading redness, warmth or swelling in the treated area, particularly with a fever.
  • Discharge that changes in colour or smell, or a wound that is not closing as expected.
  • A cold sore outbreak after treatment, which needs antiviral treatment rather than time.
  • A treated area becoming darker or lighter than the surrounding skin, because early pigment change is easier to manage.
  • A firm, raised or thickening area in the treated skin, or a scar beginning to overgrow.
  • Blistering, crusting or a burn that is not healing — contact the treating team the same day.

References & Further Reading

  • American Academy of Dermatology (AAD) — chemical peeling and laser resurfacing guidance
  • International Society of Aesthetic Plastic Surgery (ISAPS) — global standards of practice
  • National Institute for Health and Care Excellence (NICE, UK) — relevant guidance
  • Cochrane Library — systematic reviews in skin resurfacing and pigment disorders

Medically reviewed by Ke He, MD (何锞), Deputy Director & Head of Skin & Laser Aesthetics. Last reviewed: 19 September 2026.

This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.