Looking for professional chemical peels in Adelaide? Chemical peeling is one of the most researched and effective treatments for acne, photoageing, pigmentation and texture concerns. This evidence-based guide covers glycolic, salicylic, lactic and TCA peels — how they work, which suits which concern, and what proper protocols look like for safe, effective treatment in our high-UV climate.
In Brief
Chemical peels create controlled, depth-specific exfoliation by breaking the bonds between skin cells and accelerating shedding. Alpha hydroxy acids (AHAs) like glycolic acid measurably increase collagen density and speed cell renewal; salicylic acid significantly reduces inflammatory acne lesions; TCA penetrates to the upper dermis for deeper concerns. Peel choice depends on the depth of your concern, your Fitzpatrick skin type, your recovery tolerance and your goals. We offer a full professional peel range from superficial to medium-depth. Book your consultation.
On This Page:
What Are Chemical Peels?
Chemical peels use controlled acid application to remove damaged skin layers, stimulating cellular turnover and addressing concerns from surface texture irregularities through to moderate photoageing.
How peels actually work
At the cellular level:
- Acids penetrate the outermost layer (stratum corneum) and epidermis
- They break the desmosomal connections — the “glue” holding dead cells together
- Damaged, pigmented or aged cells are shed in a controlled way
- A beneficial repair response is triggered
- Fibroblast activity and collagen synthesis are stimulated
- Cellular turnover normalises toward a more youthful cycle
Why formulation matters: AHAs work by disrupting the calcium-cadherin binding that holds skin cells together, allowing dead cells to shed naturally (desquamation). This is why pH and formulation matter as much as the percentage on the bottle — it’s about maintaining the right chemical environment, not just concentration.
Depth determines results
Superficial peels (epidermis only):
- Treats: fine lines, rough texture, mild sun damage, surface pigmentation, dullness
- Recovery: 1–3 days of mild flaking
- Think: “polish and refine” — improves what you already have
Medium-depth peels (upper dermis):
- Treats: moderate wrinkles, acne scars, melasma, significant sun damage, textural irregularities
- Recovery: 7–14 days of significant peeling with social downtime
- Think: “remodel and renew” — creates structural change
Deep peels (reticular dermis):
- Treats: deep wrinkles, severe scarring, precancerous lesions
- Require a medical setting and physician supervision — not performed in clinic here
A reality check: the depth of your concern must match the depth of treatment. A superficial “lunchtime” peel cannot reach dermal wrinkles — that’s physics, not preference. This is exactly why the consultation assessment matters: we match treatment depth to your concern and your recovery tolerance.
Peel Classification by Depth
We offer professional peels across the superficial and medium-depth categories:
Superficial Peels
Target depth: stratum corneum to basal layer of the epidermis
Recovery: 1–3 days, mild redness and possible light flaking
At the clinic: superficial and medium peel services
Understanding Different Acids
Glycolic Acid (20–60%)
The smallest AHA molecule (76 Daltons), which gives it the deepest AHA penetration.
Evidence: studies show glycolic acid measurably increases collagen density and improves photodamage and fine lines, with faster cell renewal in the days following treatment.
Best for: ageing concerns, uneven texture, dull complexion, photoageing.
Salicylic Acid (20–30%)
A beta hydroxy acid (BHA) that is oil-soluble — which is the key to why it works for acne.
Unlike water-soluble AHAs that work on the surface, oil-soluble salicylic acid penetrates into the sebaceous follicle (the pore) where acne forms, to:
- Dissolve the keratin plugs behind comedones and blackheads
- Clear dead cells and debris trapped in sebum
- Reduce inflammation inside the follicle
- Normalise the keratinisation that creates blockages
Evidence: a long-standing first-line acid for acne, with research showing a significant reduction in inflammatory lesions.
Best for: oily skin, active acne, blackheads, congestion, enlarged pores.
⚠️ Contraindication: aspirin allergy (salicylic acid is related to aspirin) and pregnancy.
Lactic Acid (30–50%)
Larger than glycolic (90 Daltons), so it penetrates more gently.
Unique property: humectant — it hydrates while it exfoliates.
Evidence: comparable efficacy to glycolic with better tolerability.
Best for: sensitive or dry skin, ageing, hyperpigmentation.
Mandelic Acid (30–50%)
The largest AHA molecule (152 Daltons), giving the slowest, gentlest penetration.
Unique properties: antibacterial and anti-inflammatory.
Evidence: effective for acne and well-suited to darker skin tones (Fitzpatrick IV–VI) with lower PIH risk.
Best for: acne-prone skin, sensitive skin, higher Fitzpatrick types, rosacea.
Medium-Depth Peels
Target depth: papillary (upper) dermis
Recovery: 7–14 days; significant peeling, redness and social downtime
At the clinic: medium and intensive peel services
Trichloroacetic Acid (TCA 20–35%)
Mechanism: protein coagulation and keratolysis.
Evidence: extensively studied for moderate photodamage, wrinkles and acne scarring.
Concentration determines depth:
- 20–30% TCA: superficial to medium depth
- 30–35% TCA: true medium-depth penetration
The “frost” response: with TCA, a white frosting indicates protein denaturation — a reliable signal of treatment depth (light, patchy frost is superficial; uniform white is medium-depth). Note that salicylic acid can leave a similar-looking white film as it recrystallises on the surface — but that is not a depth indicator, a common source of confusion.
Research note: combining glycolic acid followed by TCA can improve elasticity and hydration and reduce pigmentation more effectively than TCA alone.
Indications for medium-depth peels
- Moderate wrinkles and fine lines
- Moderate to severe photodamage
- Melasma (with proper 4–6 week pre-treatment)
- Atrophic acne scarring
- Significant textural irregularities
Clinical Applications & Evidence
Acne
Findings: both glycolic and salicylic acid effectively treat acne, with salicylic often showing a faster response. One comparison of mandelic and salicylic acid found both equally effective, with mandelic better tolerated.
Mechanism: oil-soluble acids penetrate the follicle, dissolve comedone contents, reduce inflammation and normalise follicular keratinisation.
Protocol: typically 4–6 treatments every 2–4 weeks using salicylic or mandelic acid, then maintenance as needed.
Photoageing & Wrinkles
Findings: studies on glycolic peels show improvement in mild photoageing — reduced rough texture, fine wrinkling and solar keratoses — with increased collagen in the dermis on histology.
How surface peels improve deeper collagen: when AHAs create a controlled injury to the epidermis, this triggers signalling molecules (such as TGF-beta) that travel down to the dermis and prompt fibroblasts to produce new collagen. That signalling cascade is why a treatment that only reaches the epidermis can still improve collagen below it.
⚠️ Limitations: glycolic peels do not address deep wrinkles or deep dermal pigmentation — realistic expectations are essential.
Melasma & Hyperpigmentation
Findings: studies show glycolic acid and TCA can be similarly effective for melasma, with a good response in the majority of patients in both groups.
Key considerations:
- Pre-treatment with tyrosinase inhibitors is essential (4–6 weeks minimum)
- Darker skin types (Fitzpatrick IV–VI) require a conservative approach
- Mandelic or lactic acid is preferred for higher Fitzpatrick types
- Post-inflammatory hyperpigmentation (PIH) risk is managed carefully
Adelaide context: high UV makes melasma management challenging, and year-round SPF 50+ is essential to maintain results. See our hyperpigmentation treatment guide.
Acne Scarring
Findings: split-face studies comparing glycolic acid and TCA for atrophic acne scars found both effective — TCA slightly more so, but with more dryness and crusting; glycolic offered comparable improvement with less downtime.
Best approach: often combined with microneedling for optimal scar remodelling.
Pre-Treatment Preparation (4–6 Weeks Before)
Proper preparation optimises results and lowers the risk of complications.
Barrier optimisation
- Establish a healthy barrier with ceramide-rich moisturisers
- This ensures the skin can tolerate and heal from the peel effectively
Retinoid introduction
- Begin a low-strength retinoid if you’re not already using one — it builds tolerance and thins the surface layer for more even penetration
- Critical: discontinue 3–7 days before the peel
Pigmentation pre-treatment (Fitzpatrick III–VI)
- Tyrosinase inhibitors (such as kojic or azelaic acid; hydroquinone where prescribed) reduce PIH risk
- Essential for medium-depth peels in darker skin tones
- Shop pigmentation products
Sun protection (critical)
- Daily broad-spectrum SPF 50+ minimum
- Physical/mineral formulas (zinc oxide) preferred
- We stock Avocado Zinc SPF 50 mineral sunscreen
- Our UV index demands diligent year-round protection
Cold sore (HSV) prophylaxis
- If you have a history of cold sores, antiviral medication is required
- Started 1–2 days before and continued 5–7 days after the peel
- This prevents reactivation, which carries a higher risk with medium-depth peels — speak to your GP for a prescription
Post-Peel Care Protocol
Immediate Phase (0–48 Hours)
Cleansing
- Gentle, non-foaming cleanser only
- Cool to lukewarm water — never hot
- Pat dry gently, no rubbing
Moisturising
- A rich, occlusive moisturiser is essential
- Ceramide-based formulas are ideal
- Apply liberally and often (every 2–3 hours)
Avoid for the first 48 hours
- All active ingredients (retinoids, acids, vitamin C)
- Hot water, steam, saunas
- Strenuous exercise (increased blood flow delays healing)
- Makeup (first 24–48 hours minimum)
- Sun exposure, even through windows
Peeling Phase (Days 3–7)
What to expect, day by day
Superficial peels:
- Days 1–2: skin feels tight, looks slightly red (like mild sunburn)
- Days 3–4: light flaking begins, especially around mouth and nose
- Days 5–6: flaking peaks then subsides, fresh skin underneath
- Day 7: flaking complete, skin looks fresh
Medium-depth peels:
- Days 1–2: skin feels very tight, moderate to significant redness, possible swelling
- Day 3: a “bronzed” look develops as the old skin prepares to shed
- Days 4–5: sheet-like peeling begins around the mouth and spreads — this is normal
- Days 6–8: peak shedding; stay home if you can
- Days 9–10: peeling slows, new pink skin emerging
- Days 11–14: peeling complete, pinkness gradually fading
- Weeks 3–4: skin normalises and true results begin to show
Why this helps: knowing what’s normal on each day takes the panic out of it. Clients often worry on day 5 of a medium peel — but that’s exactly when major shedding should happen.
⚠️ Do not pick or peel
Picking causes scarring, post-inflammatory pigmentation and infection risk. Let the skin shed naturally — this is the single most important instruction. The urge is strongest on days 5–7 when sheets are lifting. Resist, and reach for more moisturiser instead.
Healing Phase (Week 2+)
Reintroducing products
- Week 2: gentle hydrating products, basic routine
- Weeks 3–4: gradually reintroduce actives at lower strengths, starting every other night
- Monitor closely for any irritation or sensitivity
Sun protection — the most important long-term factor
- Broad-spectrum SPF 50+ daily, non-negotiable
- Reapply every 2 hours outdoors
- Add physical barriers — wide-brimmed hats, sunglasses
- Seek shade during peak UV (10am–3pm)
- New skin is extremely vulnerable, and the pigmentation risk without protection is high
Home Care & Maintenance
Morning
- Gentle cleanser
- Antioxidant serum (vitamin C)
- SPF 50+ (reapply every 2 hours outdoors)
Evening
- Double cleanse if you’ve worn sunscreen
- Retinoid (after 2–4 weeks of healing)
- Hydrating treatment serum
- Moisturiser
Frequently Asked Questions
How many treatments will I need?
Most concerns need a series of 4–6 treatments, 2–4 weeks apart. Superficial peels may run 6–8 sessions; medium-depth typically 3–4. Maintenance every few months preserves results.
Will it hurt?
Superficial: mild tingling to moderate stinging for 2–5 minutes — most people tolerate it easily without numbing.
Medium-depth: a more intense burning sensation for 5–10 minutes; we use cooling and may apply topical numbing. The discomfort is temporary and manageable.
Can I have peels in an Adelaide summer?
Yes, with precautions. Autumn and winter are ideal, but summer peels are possible if you can commit to strict sun avoidance and diligent SPF reapplication.
For medium-depth peels, we generally recommend the cooler months (March–September) when UV is lower and sun avoidance is more practical.
How long until I see results?
Brighter, smoother skin is visible once the peeling phase completes. Texture improvements build over 4–6 weeks as collagen remodels, with fuller results over about 3 months. Results are cumulative across a series, with a final assessment 3 months after completing it.
Can I combine peels with other treatments?
Yes — a combined approach often works best, with appropriate spacing:
- With microneedling: 4 weeks apart — complementary mechanisms enhance collagen production
- With IPL: 4–6 weeks apart, peel first then IPL
- With LED therapy: can be done same-day post-peel to reduce inflammation and support healing
Related Treatment Guides
- Hyperpigmentation Treatment Adelaide: Complete Guide
- Dermapen 4 Microneedling: Comprehensive Guide
- Advanced Facials Adelaide: Professional Treatments
- Women-Only Skin Clinic Adelaide
Book Your Chemical Peel Consultation
Evidence-based peels for acne, photoageing, pigmentation and texture — with Fitzpatrick typing and acid selection matched to your skin. Women-only clinic, Northfield SA.
Key Takeaways
- ✓ Glycolic acid — the gold standard for radiance, texture and tone
- ✓ Salicylic acid — preferred for acne and congestion
- ✓ Depth matters — superficial vs medium peels determine results and downtime
- ✓ Preparation counts — 4–6 weeks of prep optimises the outcome
- ✓ Don’t pick — critical to prevent scarring and PIH
- ✓ SPF 50+ daily — before and after treatment, non-negotiable
- ✓ Fitzpatrick-appropriate — acid selection matched to your skin type
- ✓ A series works best — typically 4–6 treatments for full results
Medical Disclaimer
This article is for educational purposes only and is not medical advice. Treatment suitability depends on individual factors including medical history, medications, skin type and contraindications, which are assessed at consultation. Results vary between individuals. If you have a medical condition, take medications, or are pregnant or breastfeeding, consult a qualified healthcare professional before considering aesthetic treatments.
