A laser peel is a skin resurfacing procedure that uses focused light energy to remove damaged outer layers of skin and stimulate new collagen growth underneath. Also called laser resurfacing, it treats wrinkles, acne scars, uneven texture, sun damage, and age spots. The procedure ranges from gentle, no-downtime treatments to aggressive full-face resurfacing that requires weeks of healing.
How a Laser Peel Works
The laser emits a precise beam of light that is absorbed by water molecules inside your skin cells. When those water molecules absorb the energy, they superheat almost instantly, turning to gas and vaporizing the cells in a controlled, layer-by-layer peeling effect. This removes the damaged outer skin (the epidermis) while delivering heat into the deeper layer (the dermis) beneath it.
That deeper heat is what makes a laser peel more than just exfoliation. The thermal energy causes existing collagen fibers to contract and tighten on the spot, then triggers your body to produce fresh collagen over the following weeks and months. New collagen production continues well after the procedure itself, which is why final results often don’t appear for three to six months. As the treated area heals, the skin that grows back is smoother, firmer, and more even in tone.
Ablative vs. Non-Ablative Lasers
Laser peels fall into two broad categories based on how aggressively they treat the skin.
Ablative lasers physically vaporize and remove the epidermis. They produce the most dramatic results, often in a single session. The tradeoff is a longer recovery: treated skin is typically swollen and raw, and new skin takes 7 to 10 days to cover the area. Full healing, including the fading of redness, takes at least a month and sometimes several months.
Non-ablative lasers leave the skin’s surface intact. Instead of removing tissue, they deliver controlled heat into the dermis to stimulate collagen remodeling from the inside. Recovery is minimal. Your skin may be pink or slightly swollen for a few hours, and most people return to their normal routine the same day. The results are subtler, though, and you’ll typically need two to four sessions spaced over weeks or months to see noticeable improvement.
Fractional Technology
Many modern laser peels use a fractional approach, whether ablative or non-ablative. Instead of treating the entire surface uniformly, a fractional laser creates thousands of tiny columns of treated skin separated by untouched skin in between. Those islands of healthy tissue act as a reservoir for healing, allowing your skin to recover much faster than it would from a traditional full-surface ablative treatment.
Fractional ablative lasers offer a middle ground: more dramatic results than a non-ablative laser, with less downtime than a traditional full ablative peel. They do still require two to four sessions for optimal results, and some redness and peeling should be expected for a week or so after each treatment.
CO2 vs. Erbium Lasers
The two most common ablative laser types are CO2 (carbon dioxide) and Erbium YAG. CO2 lasers are the more aggressive of the two. Each pulse vaporizes skin to a depth of 20 to 30 micrometers, with residual heat penetrating 100 to 150 micrometers deeper. That extra thermal energy produces significant collagen tightening but also means more swelling and a longer recovery.
Erbium YAG lasers vaporize only about 3 to 5 micrometers per pass, with thermal damage reaching 10 to 40 micrometers deep. They’re considered the better tool for more superficial resurfacing. Research comparing the two found that when settings are calibrated to produce equivalent tissue injury, healing times and cosmetic improvement are essentially the same, with differences in redness resolving by about six weeks. In practice, your provider chooses between them based on how deep your skin concerns go and how much downtime you can tolerate.
What a Laser Peel Treats
Laser peels are used most commonly for fine lines and wrinkles, particularly around the eyes and mouth. They’re also effective for acne scarring, rough or uneven texture, age spots, and sun-damaged skin. Ablative treatments produce the most visible improvement for deeper wrinkles and scars, while non-ablative or light fractional treatments work well for early signs of aging, mild texture issues, and overall skin tone.
The collagen remodeling triggered by a laser peel doesn’t just address surface damage. The new collagen that forms includes the structural types responsible for skin firmness and elasticity, which is why treated skin often looks and feels tighter, not just smoother.
Skin Tone and Safety
Laser peels carry a higher risk of pigment changes for people with medium to dark skin tones, roughly Fitzpatrick skin types IV through VI. The laser energy is absorbed not only by water but also by melanin, the pigment that gives skin its color. More melanin means more energy absorption, which increases the chance of post-treatment darkening (hyperpigmentation) or, less commonly, lightening of the treated area.
This doesn’t make laser peels off-limits for darker skin, but it does require careful planning. Providers often prescribe a skin-lightening agent for several weeks before and after the procedure to reduce pigmentation risk. Cooling the skin during treatment also helps protect against pigment disruption. If you have a deeper skin tone, look for a provider with specific experience treating skin of color with lasers.
Preparation and Aftercare
You’ll need to adjust your skincare routine before a laser peel. Retinoids should be stopped 5 to 7 days beforehand because they increase cell turnover, leaving skin thinner and more reactive. The same goes for chemical exfoliants like AHAs, BHAs, and enzyme-based products. Physical scrubs should also be paused during that window to avoid over-sensitizing the treatment area.
After an ablative treatment, the skin is essentially an open wound. Expect it to look red, feel tight, and swell noticeably for the first day or two. Peeling and flaking begin around days three through five as the old tissue sheds. New skin typically covers the area within 7 to 10 days, though redness can persist for weeks. Your provider will likely apply a thick ointment and cover the area with a protective dressing. Sun exposure is a serious concern during healing because new skin is extremely vulnerable to UV damage and pigment changes.
Non-ablative treatments require almost no special aftercare. You may notice mild swelling or pinkness for a few hours, but ice packs and your normal skincare routine are usually sufficient.
Cost
The average cost of a laser resurfacing procedure is $1,829, according to the American Society of Plastic Surgeons. That figure varies widely depending on the type of laser, the size of the treatment area, and your geographic location. A single full-face ablative CO2 treatment will typically cost more than a fractional or non-ablative session, but non-ablative treatments often require multiple sessions, so the total investment can be comparable. Laser resurfacing is considered cosmetic, so insurance does not cover it.