Chemical Peel Types: Depths, Acids and How to Choose
Chemical peels fall into three types by depth: superficial, medium and deep. The deeper the peel goes, the more dramatic the result, but the longer the recovery and the higher the risk. Within each depth, the acid matters too. Glycolic acid is a superficial peel. TCA (trichloroacetic acid) is typically used for medium-depth work. Phenol-based formulas are for deep peels. This guide explains each type, what it treats, how TCA and glycolic compare, and what to check before you book in Dubai.
TL;DR
- Peels are classed by how deep they penetrate: superficial (epidermis), medium (down to the papillary dermis) and deep (mid-reticular dermis).
- Superficial peels, such as glycolic or salicylic acid, suit dullness, mild pigmentation and acne. Medium peels, usually TCA, suit deeper lines and uneven tone.
- TCA can work faster than glycolic acid on stubborn melasma, but with a higher relapse rate and more need for careful handling.
- Darker skin tones (Fitzpatrick III to VI) carry a higher risk of pigmentation changes and scarring with medium and deep peels, so depth must be chosen with care.
- In Dubai, a face-to-face consultation with a DHA-licensed professional must come before any peel.
Table of Contents
- How chemical peels are classified
- Superficial peels
- Medium-depth peels
- Deep peels
- TCA peel vs glycolic: which is right?
- Which peel suits which concern?
- Skin tone and peel safety
- Recovery and aftercare by depth
- What to expect in Dubai: rules and consultation
- Our perspective
- Book a peel consultation at Yoyimé Clinic
- FAQ
- Sources
How chemical peels are classified
A chemical peel applies an acid solution that causes controlled exfoliation, so new skin forms in its place. Doctors group peels by how far the solution reaches. A practical review of chemical peels describes three levels: superficial peels reach the epidermis, medium peels reach from the epidermis through the papillary dermis, and deep peels reach the mid-reticular dermis.
The same review notes that depth is set by the cumulative dose: the concentration of the acid and the number of passes over the skin. Downtime and the chance of side effects rise in step with depth. That is why the same acid can behave as a gentle peel in one protocol and a stronger peel in another.
| Superficial | Medium | Deep | |
|---|---|---|---|
| Reaches | Epidermis | Epidermis to papillary dermis | Mid-reticular dermis |
| Typical agents | Glycolic, salicylic, lactic, mandelic acids | TCA (often 35 to 50%), sometimes combined with another agent | Phenol-based formulas |
| Results | Subtle, built over a series | Visible, more pronounced | Most dramatic |
| Recovery | Shortest | Longer | Longest, with greater risk |
Superficial peels
Superficial peels, often called lunchtime or refresher peels, use a mild acid to work on the outer layer of skin. Glycolic acid is the best-known example: it is an alpha-hydroxy acid (AHA) and, according to the practical review, it must be neutralised after application. Salicylic acid is a beta-hydroxy acid often chosen for oily, acne-prone skin.
According to a peer-reviewed review of current practice, superficial peels can address:
- mild photoageing and fine lines
- roughness
- solar lentigines (sun spots)
- acne vulgaris and mild acne scarring
- melasma and mild dyschromia
- post-inflammatory hyperpigmentation
The trade-off is subtlety. A superficial peel gives gradual improvement, so it is normally done as a series rather than once. For many people in Dubai’s climate, that gentler rhythm fits a working week well, because downtime is minimal.
Medium-depth peels
Medium peels reach further into the skin and are the usual choice when a superficial peel is not enough. TCA is the typical agent. The same review of current practice lists what medium peels can address:
- mild to moderate photoageing
- fine lines and wrinkles
- solar lentigines
- melasma
- mild to moderate dyschromia
- seborrhoeic keratoses
- superficial atrophic scars
Because the peel goes deeper, expect more visible peeling and a longer healing period than with a lunchtime peel. Higher concentrations also bring higher complication risk, which is why the strength and the number of passes are decided by the doctor after assessing your skin, not by a menu.
Deep peels
Deep peels, typically phenol-based, reach the mid-reticular dermis. According to the same review, they can address severe photoageing and advanced wrinkles, pigmentary disorders, premalignant skin tumours and scars. They give the most dramatic change, but they also carry the greatest risk and the longest recovery. For most people looking for a natural refresh, the choice is realistically between superficial and medium depth, and a doctor will tell you if a deeper approach is even appropriate.
TCA peel vs glycolic: which is right?
This is the comparison most readers want, and the answer depends on the concern and on your skin.
| Glycolic acid | TCA | |
|---|---|---|
| Depth | Superficial | Commonly medium, at 35 to 50% |
| Class | Alpha-hydroxy acid | Trichloroacetic acid |
| Handling | Needs neutralising after application | Higher strengths carry greater complication risk |
| Melasma | Slower improvement | More rapid improvement, but a higher relapse rate |
| Best for | Dullness, texture, mild pigmentation, acne | Deeper lines, uneven tone, superficial scars |
The melasma finding comes from a trial by Kalla and colleagues, discussed in a review of glycolic acid peels: TCA improved melasma faster than glycolic acid but relapsed more often. The practical lesson is to match the agent to your condition and your goal, not to assume stronger is better. If you want to understand your pigmentation first, our page on melasma treatment in Dubai explains how we approach it.
Which peel suits which concern?
- Acne and post-acne marks: superficial to medium-depth peels are the preferred range, according to a review of peels in acne, which says deep peels should largely be avoided in darker skin because of scarring risk.
- Dullness and rough texture: a superficial peel, repeated as a series.
- Fine lines and sun damage: superficial peels for mild changes, medium-depth for more established ones.
- Melasma and uneven tone: careful selection of agent and depth, as above.
- Body areas: the skin on the back, chest, underarms and bikini line behaves differently from the face, so these areas have their own protocols. We offer a back chemical peel, chest chemical peel, underarm chemical peel and bikini chemical peel.
Skin tone and peel safety
Skin tone changes how a peel should be planned. The review of current practice states that Fitzpatrick skin types III to VI have a greater risk of pigmentary dyschromias and scarring with medium and deep peels. Many residents of the UAE fall in this range, so depth selection is not a detail: it is the central safety decision. A good plan often starts superficial and builds gradually.
Who should not have a peel
The same review lists active infection, open wounds, pregnancy and isotretinoin therapy within the previous six months as absolute contraindications for medium-depth and deep peels. The acne-focused review also flags active infections, pregnancy and a history of keloid scarring as concerns, and finds the evidence insufficient to require delaying peels after isotretinoin. Because the two sources differ on isotretinoin, tell your doctor about any current or recent use of it, along with any history of cold sores or keloids, and let them decide the timing.
Recovery and aftercare by depth
Recovery follows depth. A superficial peel usually means mild redness and light flaking. A medium peel means more obvious peeling and a longer healing period, and a deep peel needs the most supervised recovery. Your doctor will give you the timeline for your specific peel, because it depends on the agent, the strength and your skin.
Two habits matter at every depth: do not pick at peeling skin, and protect the new skin from the sun. In Dubai, where UV exposure is high most of the year, daily sunscreen after a peel is not optional. Our day-by-day chemical peel aftercare guide walks through what to do as the skin heals.
What to expect in Dubai: rules and consultation
Peels in Dubai are regulated as non-surgical cosmetic procedures. Under the DHA standards for non-surgical cosmetic procedures, effective 2025, professionals must hold a valid DHA licence, BLS certification and medical malpractice insurance. Facilities must have a DHA-licensed specialist or consultant dermatologist or plastic surgeon available to supervise.
The same standards require a face-to-face consultation and assessment before any chemical peel, to set the plan and explain the risks and side effects. Before you book anywhere, ask who will perform the peel and confirm their licence on the DHA’s official channels. A peel that skips the consultation is a red flag.
Our perspective
Most people who ask us about peels do not need the strongest option. They need the right one. In our experience, the best results come from matching the acid and the depth to the person: their skin tone, their concern and their calendar.
That is why a peel at Yoyimé starts with a doctor-led consultation. Our approach is built around refined, natural results, and a peel is rarely a stand-alone decision. Pigmentation, acne marks and texture often respond best when a peel sits alongside other care, such as a Hydrafacial, advanced laser treatment or a skin plan built around your concerns.
Having dermatology, aesthetics, laser and lab diagnostics under one roof means one team sees the whole picture and can adjust the plan as your skin responds. We would rather build your result in steps than rush it.
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Book a peel consultation at Yoyimé Clinic
If you are weighing up peel types, the simplest next step is a consultation in Deira, where a doctor assesses your skin and recommends a depth and an agent. We offer peels for the face and for body areas, and a men’s chemical peel tailored to men’s skin.
See our chemical peels in Dubai page or the face chemical peel page to start, or explore the full range of treatments on our clinic’s homepage. If you are comparing peels with other options, our guide to skin rejuvenation treatments, peels and microneedling sets them side by side.
FAQ
What are the three types of chemical peels?
The three types are superficial, medium and deep, classed by how far the acid penetrates. Superficial peels reach the epidermis, medium peels reach the papillary dermis, and deep peels reach the mid-reticular dermis. Results and recovery time both increase with depth.
Which chemical peel is best?
There is no single best peel. The right one depends on your concern, your skin tone and how much downtime you can accept. For acne and pigmentation, superficial to medium-depth peels are generally preferred, especially in darker skin. A doctor’s assessment decides the choice.
Is a TCA peel stronger than a glycolic peel?
Yes, in the way they are usually used. Glycolic acid is a superficial peel, while TCA at 35 to 50% is commonly used for medium-depth peels. TCA can improve melasma faster but with a higher relapse rate, so it needs careful handling.
Are chemical peels safe for darker skin?
They can be, when depth is chosen carefully. Fitzpatrick skin types III to VI have a higher risk of pigmentation changes and scarring with medium and deep peels. Superficial peels, planned by an experienced doctor, are the usual starting point.
How many chemical peels do I need?
Superficial peels are normally done as a series, because each gives subtle improvement. Medium peels are typically done less often. Your doctor will set the number of sessions and the interval after your consultation.
Sources
- A Practical Approach to Chemical Peels: A Review of Fundamentals and Step-by-step Algorithmic Protocol
- Chemical peels: A review of current practice
- Chemical peels in the treatment of acne: patient selection and perspectives
- Glycolic acid peel therapy: a current review
- DHA Standards for Non-Surgical Cosmetic Procedures