Chemical Peels: Types, Cost & Complete UK Guide (2026)

A chemical peel does exactly what the name suggests — a solution is applied to your skin that causes the outer layers to peel away, revealing fresher, smoother skin underneath. The concept has been around since ancient Egypt (Cleopatra reportedly bathed in sour milk, which contains lactic acid), but modern peels are far more precise and predictable.

Around 250,000 chemical peel treatments are performed in the UK each year, making them one of the most popular non-injectable aesthetic treatments. They treat everything from dull skin and fine lines to acne scarring and sun damage, with prices starting as low as £60 per session.

How It Works

Chemical peels use controlled acid solutions to dissolve the bonds between skin cells at a specific depth. The three categories are defined by how deep the solution penetrates.

Superficial peels (affecting the epidermis only) use alpha-hydroxy acids (AHAs) like glycolic acid (20-50%) or lactic acid (10-30%), or beta-hydroxy acids (BHAs) like salicylic acid (20-30%). These break down the outermost layer of dead skin cells without reaching the dermis. Think of it as accelerated exfoliation — you're removing what your skin would shed naturally over several weeks, compressed into a single session.

Medium-depth peels use trichloroacetic acid (TCA) at 15-35% concentration, sometimes combined with Jessner's solution (a mix of salicylic acid, lactic acid and resorcinol). These penetrate through the epidermis into the upper dermis (papillary dermis), triggering a wound-healing response that produces new collagen. The "frosting" you see during a TCA peel — a white coating on the skin — indicates protein coagulation in the upper dermal layers.

Deep peels use phenol (Baker-Gordon formula) or high-concentration TCA (above 50%). These reach the mid-reticular dermis and cause significant tissue remodelling. They produce the most dramatic results but carry the most risk and require the longest recovery. Deep phenol peels also have cardiac risks (phenol is cardiotoxic at high doses), so cardiac monitoring during treatment is standard practice.

What to Expect During Treatment

The procedure varies by peel depth, but a typical session follows this sequence:

1. Consultation and skin assessment (15-30 minutes) — Your practitioner evaluates your skin type (Fitzpatrick scale), identifies your concerns, and recommends the appropriate peel type and strength. If you're having a medium or deep peel, you'll likely be prescribed a pre-treatment regimen of tretinoin and hydroquinone for 2-4 weeks beforehand to prime your skin.

2. Cleansing and degreasing — Your skin is thoroughly cleansed, then wiped with acetone or isopropyl alcohol to remove any remaining oils. This step is critical — residual oils create a barrier that causes uneven penetration of the peel solution.

3. Application — The peel solution is applied with gauze pads, cotton-tipped applicators, or a brush in a specific pattern (usually forehead first, then cheeks, nose, chin, and perioral area). For superficial peels, one or two coats are applied. For TCA peels, your practitioner watches for the frosting endpoint — the point at which the skin turns white, indicating the target depth has been reached.

4. Neutralisation or removal — Superficial AHA peels are neutralised with a bicarbonate solution after a timed interval (typically 2-5 minutes). TCA peels are self-neutralising — they stop working once the frosting endpoint is reached. Your practitioner may apply cool compresses to manage discomfort.

5. Post-treatment care — A soothing moisturiser and broad-spectrum SPF 50 sunscreen are applied. You'll receive aftercare instructions specific to your peel depth.

Superficial peels feel like a warm tingling or mild stinging that lasts a few minutes. Medium-depth TCA peels cause a more intense burning sensation for 2-3 minutes during application — most practitioners use a handheld fan to help manage this. Deep peels are performed under sedation or general anaesthetic.

Cost in the UK

| Region | Superficial Peel | Medium-Depth Peel | Deep Peel | |--------|------------------|--------------------|-----------| | London | £80-150 | £200-350 | £400-500+ | | South East | £70-130 | £180-300 | £350-450 | | Midlands | £60-120 | £150-280 | £300-450 | | North | £60-110 | £150-250 | £300-400 | | Scotland | £60-110 | £150-250 | £300-400 |

Most clinics sell superficial peels as a course of 4-6 treatments, which usually comes with a discount of 10-20% versus individual session pricing. A typical course of 6 glycolic peels in London costs £400-700.

Medium-depth peels are usually priced per session and include the pre-treatment skincare regimen. Deep peels are a one-off treatment and the price often includes follow-up appointments.

Price red flags: Superficial peels under £40 may indicate low-quality products or untrained operators. Equally, any superficial peel priced above £200 is likely overcharging — the ingredients cost a few pounds per session.

Results and Recovery

Superficial peels:

• Day 1: Mild pinkness, similar to mild sunburn. Skin feels tight.
• Day 2-3: Light flaking, particularly around the nose and chin.
• Day 3-5: Flaking resolves. Skin appears brighter and smoother.
• After 4-6 sessions: Noticeable improvement in skin texture, tone, and mild pigmentation.

Medium-depth peels:

• Day 1-2: Skin is red and swollen. A brown tint develops as the treated skin begins to darken.
• Day 3-5: Visible peeling begins. The skin looks like it's shedding — resist the urge to pick.
• Day 5-7: Peeling completes. New skin underneath is pink but intact.
• Week 2-4: Pinkness fades. Collagen remodelling continues for 3-6 months.

Deep peels:

• Day 1-7: Significant swelling, crusting, and oozing. Eyes may swell shut temporarily. Wound care with Vaseline or prescribed ointments is essential.
• Week 1-2: Crusts separate. New skin is very red and sensitive.
• Month 1-3: Redness gradually fades. Strict sun avoidance is mandatory.
• Month 3-6: Full collagen remodelling. Results are dramatic — deep wrinkles and scars are visibly improved.

For ongoing skin maintenance, superficial peels pair well with microneedling and medical-grade skincare. If you're considering peels for forehead lines, Botox tackles the muscle movement causing those lines, while peels address the surface texture.

Risks and Side Effects

• Common: Redness, tightness, flaking (superficial peels). These are expected and not complications.
• Uncommon: Post-inflammatory hyperpigmentation (especially in darker skin tones), prolonged redness lasting more than 2 weeks, contact dermatitis from peel components.
• Rare: Bacterial or viral infection (herpes simplex reactivation is the main risk — practitioners should prescribe prophylactic antivirals for medium and deep peels in anyone with a history of cold sores). Scarring from medium-depth peels is rare but reported in approximately 1% of cases.
• Very rare: Scarring from superficial peels, cardiac arrhythmia from phenol peels (this is why deep peels require cardiac monitoring and are performed in clinical settings only).

The risk profile changes dramatically with peel depth. Superficial peels have an excellent safety record when performed on appropriate skin types. Deep peels are closer to a surgical procedure in their risk profile. For a broader understanding of pre- and post-treatment care, check our aftercare protocols guide.

How to Choose a Practitioner

Chemical peels are one of the least regulated treatments in the UK — anyone can legally perform a superficial peel with minimal training. That gap between legality and competence is where problems arise.

For superficial peels, look for:

• A trained aesthetician, nurse, or doctor with specific chemical peel certification
• Experience with your skin type — ask directly how many patients with your Fitzpatrick type they've treated
• They should perform a patch test 48 hours before your first peel

For medium and deep peels, your standards should be higher:

• A doctor, surgeon, or advanced nurse practitioner with prescribing rights (pre-treatment retinoids and antivirals require a prescription)
• Evidence of specific training in TCA or phenol peels (not just a one-day course)
• A proper clinical environment with emergency equipment for deep peels
• Check their CQC registration if they're performing deep peels, as these may fall under regulated activity

Ask to see before-and-after photos of patients with similar skin concerns and skin types to yours. A good practitioner will have a portfolio and be transparent about realistic outcomes.

The Bottom Line

Chemical peels are a versatile, evidence-based treatment that can address a wide range of skin concerns — from dullness and mild pigmentation (superficial peels) to acne scarring and photoageing (medium-depth peels). The key is matching the peel depth to your specific concern, skin type, and tolerance for downtime.

Start with a superficial peel if you're new to the treatment. You can always go deeper in subsequent sessions once you know how your skin responds. And whatever depth you choose, commit to SPF 50 daily afterwards — undoing the benefits of a peel by getting sun damage is the most expensive mistake you can make.

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This guide was written by Dr. Shane McKeown, a former NHS doctor and founder of Aestheticc, a clinic management platform for aesthetic practitioners. Last reviewed March 2026.