Skin Peels (Chemical Peels)
A skin peel, also called a chemical peel, uses a solution of exfoliating acids such as glycolic, lactic, salicylic, mandelic or trichloroacetic acid to loosen and remove the outer layers of dead skin cells. As the surface sheds, it can reveal fresher, more even skin beneath and encourage renewal. Peels are grouped roughly into superficial, medium and deeper strengths. Lighter, salon-style superficial peels mainly refresh dull, congested or uneven skin with little downtime, while medium and deeper peels work further into the skin, carry more risk and are medical-grade treatments best carried out by a suitably qualified practitioner in a clinical setting. Peels are often used to improve the look of dullness, fine lines, uneven tone, sun damage, congestion and some acne, but they are not a cure for skin conditions and results build gradually over a course. Suitability depends heavily on your skin type, tone and history, so an honest consultation matters. It typically works best as part of a consistent skincare routine rather than a one-off, and the strength and formula can be tailored to your skin and goals.
Book a consultation before your first peel so the practitioner can assess your skin type, tone and history and choose a suitable strength. In the weeks beforehand you may be advised to stop retinoids, strong acids, scrubs and other exfoliating actives for several days, and to avoid waxing, hair removal creams, recent sunbeds or heavy sun exposure on the area. Tell your practitioner about any medication, recent isotretinoin (Roaccutane) use, a history of cold sores, pregnancy or breastfeeding, and any previous reactions, as these can change what is safe. Some clinics prime the skin with a prescribed home routine to improve results and lower the risk of uneven pigmentation, particularly on medium or deeper peels and darker skin tones. Come with clean, product-free skin on the day, arrive without make-up if asked, and avoid any treatment on broken, sunburnt or irritated skin. Ask what strength is planned and what to expect afterwards so you can plan around any peeling or downtime.
Your practitioner will usually cleanse and degrease the skin, then apply the peel solution evenly, often building up in layers and watching how your skin responds. You will typically feel warmth, tingling or a mild stinging that can intensify briefly, and a small handheld fan is often used for comfort. Superficial peels usually take only a few minutes of contact time, while stronger peels are applied more carefully and monitored closely. Depending on the type of acid, the solution may be neutralised and rinsed off, or left to self-neutralise. A superficial peel is generally well tolerated and should not leave the skin raw or bleeding; deeper frosting, significant whitening or heavy discomfort points to stronger, medical-depth work that belongs with a qualified medical practitioner. Afterwards your skin may look pink or flushed. The practitioner should explain aftercare, apply a soothing moisturiser and sunscreen, and tell you when peeling or flaking is likely to start and how to look after your skin.
Keep the skin calm, clean and well protected while it recovers. Use lukewarm water and a gentle, fragrance-free cleanser, pat dry rather than rub, and apply a bland hydrating moisturiser as advised. Daily broad-spectrum SPF 30 or higher is essential, reapplied through the day, because freshly revealed skin is far more vulnerable to sun and to uneven pigmentation. It is important not to pick, peel or scrub at any flaking, as this can cause scarring or dark marks; let the skin shed naturally. Avoid retinoids, acids, vitamin C, exfoliants and other active or fragranced products until your practitioner says your barrier has recovered, usually around a week or more. Steer clear of heat, saunas, steam rooms, hot yoga, swimming pools and heavy sweating for a few days, and delay make-up if the skin is broken or very sensitive. If you get any unexpected blistering, spreading redness, oozing or signs of infection, contact your practitioner promptly and seek medical advice if you are unwell.
Peels should only be carried out on healthy skin with an intact barrier, never on broken, sunburnt, infected or already irritated skin. Choose a practitioner who is trained and insured for the specific peel and strength they are offering, and who gives you a proper skin assessment rather than a one-size-fits-all treatment. Medium and deeper peels are medical-grade and carry real risks of burns, scarring and long-lasting pigment changes, so they belong with a suitably qualified medical practitioner in a clinical setting, not a quick add-on. People with deeper or darker skin tones need a practitioner experienced in choosing safe acids and strengths, because the risk of uneven pigmentation is higher. Be cautious of very strong peels offered cheaply or without consultation, and never use unregulated high-strength peels bought online at home. A good practitioner will start conservatively, explain the risks and aftercare, and be reachable if something does not look right afterwards.
Several conditions and medicines make peels unsuitable or riskier, which is why a full history matters. Recent isotretinoin (Roaccutane) use usually means waiting several months because the skin heals differently and can scar. A history of cold sores can be reactivated by a peel, so your practitioner may recommend antiviral cover. Active infections, eczema, rosacea flares, open or broken skin, recent facial surgery or recent laser or other resurfacing are generally reasons to delay. Peels are typically avoided in pregnancy and breastfeeding, particularly with salicylic acid, so tell your practitioner and check with your GP or midwife if unsure. A tendency to keloid or hypertrophic scarring, certain autoimmune conditions and photosensitising medication also need care. If you have a diagnosed skin condition, uncontrolled acne or anything you are worried about, see your GP or a dermatologist first, as a peel is a cosmetic treatment and not a substitute for medical care. Always disclose all medicines, supplements and past reactions during your consultation.
A skin peel is not usually patch tested in the way that hair or brow tints are, but a thorough consultation and skin assessment is the key safeguard and, in UK terms, part of showing that reasonable care was taken. A responsible practitioner will assess your skin type and tone, review your medical history, medications and any past reactions, and check for contraindications before choosing a strength. Some clinics also apply a small test area or a lower-strength priming routine first, especially before medium or deeper peels or on darker skin tones where pigment changes are more likely. This staged, cautious approach reduces the risk of burns, scarring and uneven colour, and gives an insured practitioner a clear record that suitability was checked. If a clinic offers to go straight to a strong peel with no assessment, treat that as a warning sign.
Be wary if there is no consultation or skin assessment, no questions about your medical history, medicines or cold sores, and no discussion of your skin tone or the risk of pigmentation. A practitioner who cannot tell you which acid and strength they are using, or who is not trained and insured for it, is a concern. Pressure to jump straight to a strong peel, prices that seem too good to be true, or peels performed on broken, sunburnt or irritated skin are all warning signs. During treatment, heavy burning, significant blistering or the practitioner ignoring your discomfort are not normal for a routine superficial peel. Vague or missing aftercare advice, no way to get help if something goes wrong, and any suggestion of a high-strength peel with no test or priming should make you pause.
Good practice starts with an unhurried consultation that covers your skin type and tone, medical history, medicines and goals, and a clear explanation of which peel and strength is suitable and why. A trustworthy practitioner is appropriately trained and insured for the specific peel, works in a clean and professional setting, and is honest about what a peel can and cannot achieve. They will often recommend a priming routine or start with a gentler strength and build up over a course rather than promising instant transformation. Expect clear written aftercare, realistic timelines for redness and peeling, and strong emphasis on daily sun protection. They should welcome your questions, explain the risks including pigmentation and scarring, and be reachable afterwards if you have concerns. Careful, conservative treatment tailored to your skin is a sign you are in safe hands.
- What type and strength of peel are you recommending for my skin, and why is it suitable for my skin tone?
- What training, qualifications and insurance do you hold for this specific peel?
- How much redness, peeling and downtime should I realistically expect, and for how long?
- Do I need to prepare my skin beforehand or stop any products or treatments first?
- What are the risks for someone with my skin type, and what would you do if I reacted badly?
- How many sessions might I need, what results are realistic, and how do I look after my skin afterwards?
During the peel most people feel warmth, tingling, prickling or a mild to moderate stinging that can build for a short while, particularly as more layers go on. A cooling fan is often used and the strongest sensation usually eases quickly, especially once a superficial peel is neutralised or removed. Afterwards the skin can feel tight, dry, hot or slightly sunburnt, and may look pink or flushed. Over the following days it often feels dry and tight as flaking begins. A superficial peel should not feel unbearable or leave the skin raw and bleeding; intense burning or significant discomfort suggests a stronger, medical-depth treatment that needs a qualified medical practitioner.
Downtime depends heavily on the strength of the peel. A light, superficial peel may cause only mild redness and a little flaking for a day or two, so many people return to normal activities quickly. Medium and deeper peels typically involve more visible redness, tightness, dryness and peeling that can last around seven to fourteen days, sometimes longer, and skin can look dull before it looks better. Plan stronger peels around social or work commitments and expect to keep out of strong sun while healing. Full renewal continues under the surface for some weeks, so give the skin time before judging results.
Results build gradually rather than appearing overnight. After a single superficial peel skin often looks brighter, smoother and more even once any flaking settles, while improvements in tone, texture, congestion or fine lines usually need a course of several peels spaced a few weeks apart. Deeper peels can give more noticeable change but with more downtime and risk. However you treat your skin, results are not permanent, because the skin keeps renewing and ageing and everyday sun exposure gradually undoes the benefits. Daily broad-spectrum sunscreen is the single most important thing you can do to protect and prolong your results, alongside a consistent, well-chosen skincare routine. Many people have maintenance peels every few weeks or months, tailored to their skin and goals. Your practitioner can advise on a sensible schedule and on home-care actives to introduce once your barrier has recovered, so you keep results without over-treating the skin.