Chemical Peel Before and After: Results by Peel Depth

A light peel is the superficial class: it penetrates the epidermis only.

The typical agents are alpha hydroxy acids — glycolic at 30 to 50%, lactic, and mandelic at 40% — plus the beta hydroxy acid salicylic at 30%, and pyruvic acid at 50%.

Dull complexion, rough skin and fine lines are among the entries on the American Academy of Dermatology's (AAD) list of what dermatologists use chemical peels for.

That list covers chemical peels as a class — the AAD does not sort the uses by peel depth — so which of them a light peel can address in your case is a question for your provider.

The before-and-after that matters here is a series, not a single visit.

The AAD says 3 to 5 light peels every 2 to 5 weeks may be needed; each session heals in 1 to 7 days, with redness and then scaling that lasts 3 to 7 days, and makeup usually goes back on immediately or the next day.

That schedule is the context for photos of this class: a single-visit before-and-after shows one step of a series, so the comparison that carries the most information is before the series against after it.

A medium peel reaches the full epidermis and the papillary dermis.

The most common medium-depth agents today are 70% glycolic acid and 35 to 50% TCA (trichloroacetic acid), often applied over a primer such as Jessner's solution.

With TCA, the percentage is the depth: 10 to 20% is used as a superficial peel, 35 to 50% is medium-depth, and 50% or higher is deep — one review describes 40% TCA as a "borderline medium-depth" peel.

The "after" arrives through a real healing phase: the AAD gives 7 to 14 days to heal. "After a medium or deep peel, you will have downtime," the AAD says plainly.

On the AAD's use list for chemical peels, the pigment-and-texture entries are age spots, discoloration, melasma, sun damage and fine lines; the list is for peels as a class rather than depth by depth, so which of them a medium peel can address for your skin is a question to put to your provider.

What can also show is on the AAD's side-effect list: persistent redness that may last months, temporary skin darkening, and, with medium and deep peels, lighter skin color.

Unlike a deep peel, a medium peel can be repeated.

A deep peel reaches down to the mid-reticular dermis, the deepest of the three classes.

Its agents are TCA above 50% or a Baker-Gordon phenol (croton oil) peel — though high-concentration TCA deep peels have fallen out of favor because of frequent complications, a high incidence of scarring and unpredictable depth.

The setting tells you how different this class is.

The AAD: a deep peel is done under general anesthesia and must be performed in a surgical setting, treated one small section at a time to limit effects on the heart and lungs.

The "after" is the longest of the three: the AAD gives 14 to 21 days to heal.

It is also one-shot — the AAD says a person can have only one deep peel.

Nothing in the sources this page draws on describes deep phenol peels as a med spa service.

The pigment risk is not even across skin tones either: deep phenol peels are not recommended for darker skin types IV to VI because of the high risk of prolonged or permanent pigment changes.

The AAD's list of what dermatologists use chemical peels for is the frame for every before-and-after here: some types of acne, age spots, discoloration, dull complexion, fine lines (especially under the eyes and around the mouth), freckles, melasma, rough skin and sun damage.

Peels are cosmetic, and insurance does not cover cosmetic treatments.

Acne. For depressed acne scars, the AAD's example plan is 3 to 5 mild peels given every 2 to 4 weeks, after 2 to 4 weeks of pre-peel priming and sun protection.

For active acne rather than scars, the trial base is modest: a 2018 BMJ Open review of 12 randomized trials (387 participants) found the commonly used peels appear similarly effective and well tolerated for mild-to-moderate acne vulgaris, graded the evidence very low to moderate, and could not show any one peel superior.

The ceiling matters too — ASPS says peels cannot remove deep scars.

Pigment. For melasma, the AAD treats peels as an add-on to prescription creams and sun protection, and says results usually take 3 to 12 months.

The one head-to-head we found is a 100-patient study cited in the Rendon 2010 review: 10 to 15% TCA worked faster than 55 to 75% glycolic, but relapse was more common after TCA — 25% versus 5.9%.

That is one small study, not a rule.

Wrinkles. The AAD's fine-line use is specific — lines under the eyes and around the mouth — and ASPS is specific about the limit: peels cannot treat deep facial lines or wrinkles, and cannot significantly tighten loose or sagging skin.

The AAD: most results are not permanent because skin continues to age, and people with lots of sun damage or actinic keratoses will likely keep developing new spots.

Depth is the first question to put to any provider, because the class you are quoted sets the healing schedule and the number of visits.

Ask which acid, at what concentration, and which depth class the provider places it in.

Two checks belong to the photos.

First, treat a gallery as advertising: under the FTC's Endorsement Guides (16 CFR 255.2), an ad that features one consumer's experience is likely read as showing what consumers will generally achieve, and an advertiser who cannot substantiate that should clearly disclose the generally expected results.

A caption such as "results not typical" does not adequately reduce that impression, the FTC says.

So the useful question is not "how good is that photo" but "what result is generally expected for someone with my concern and skin type."

Second, supervision: FDA has not approved any chemical peel products, and on July 30, 2024 the agency warned consumers not to buy or use certain peel products without professional supervision.

For darker skin tones, the AAD's advice is a dermatologist experienced in peeling darker skin: people with skin of color can safely have chemical peels, it says, but without that experience permanent pigment problems can develop.

For the rest of the picture — types and agents, cost, the day-by-day recovery schedules and the side-effect lists — our chemical peel guide covers what this page sets aside.