A chemical peel applies an acid solution to the skin for a set time, to remove its outer layers in a controlled way. As the skin renews, it can look brighter and smoother, and some marks fade. How much a peel does, and how long recovery takes, depends mostly on one thing: how deep it goes.
Peel depth, in plain terms
- Superficial peels act on the outermost layer of skin. Common agents include glycolic, lactic, mandelic and salicylic acid. Recovery is usually a few days of tightness and light flaking.
- Medium-depth peels reach the upper part of the deeper skin layer, for example with stronger trichloroacetic acid. They can do more for sun damage and fine lines, with a week or more of visible peeling.
- Deep peels go further still. They are a medical procedure with weeks of recovery and higher risks, and are not what most people mean by a peel.
What peels can help with
Reviews of the evidence support superficial and medium peels for uneven pigmentation, including sun spots and melasma, for acne and mild acne marks, and for dull or rough texture and fine lines. Melasma often returns, so it needs daily sun protection and maintenance. Peels do not tighten loose skin, remove deep lines or lift the face; for those we would talk about RF skin tightening or SMAS HIFU lifting instead.
Why one peel is rarely enough
Superficial peels are gentle by design, so their effect builds over a course. Our usual plan is 3 to 6 peels, two to four weeks apart, with your home routine and sun protection doing much of the work between sessions. We agree the number, the spacing and the peel at your consultation, based on your skin and what you want to change.
Recovery, day by day
- Straight after: warmth, tingling or redness, usually settling within hours.
- Days 2 to 4: tightness, then light flaking as the outer skin sheds. Let it come away by itself; picking can leave marks.
- Days 5 to 7: skin usually looks fresh, with some sensitivity left.
- The weeks after: broad-spectrum SPF 30 or higher every day. New skin burns more easily, and unprotected sun is a common reason pigment comes back.
Why winter suits peels
Freshly peeled skin is more vulnerable to UV, and sun after a peel can bring pigment back or cause new dark patches where the skin was inflamed (post-inflammatory hyperpigmentation), which is more likely in darker skin. Low UV levels and short days make autumn and winter the easiest time to complete a course and protect the result. You still need SPF every day.
When a peel is not a good idea
A peel should wait if the skin is sunburnt, broken, infected or has an active cold sore, and for a period after isotretinoin, a prescription acne medicine; ask the doctor who prescribed it. Retinoids and other exfoliating products are usually stopped for a few days beforehand, and some peel acids are avoided in pregnancy. If you get cold sores, keloid scars or dark marks after spots or grazes, tell us so we can plan around it.
Chemical peels at KCLINICS
Every chemical peel starts with a consultation, where we look at your skin, ask about your medical history and the products you use, and agree a plan. If a peel is not the right tool for what you want to change, we will say so and suggest an alternative, such as pigmentation correction, or a HydraGlow facial a few days before an event.
Winter is the easiest season to complete a course of peels and keep the result.
Sources
- Soleymani T, Lanoue J, Rahman Z. A practical approach to chemical peels: a review of fundamentals and step-by-step algorithmic protocol for treatment. Journal of Clinical and Aesthetic Dermatology, 2018;11(8):21-28.
- O’Connor AA, Lowe PM, Shumack S, Lim AC. Chemical peels: a review of current practice. Australasian Journal of Dermatology, 2018;59(3):171-181.
- NHS. Cosmetic procedures: things to consider before you go ahead.
