What Are Chemical Peels?
Controlled application of an acid or other chemical to exfoliate skin at a superficial, medium, or deep level. Agent, concentration, pH, layers, exposure, anatomy, and skin tone determine injury and downtime.
Overview
Chemical peels create controlled skin injury using an acid or other caustic formulation. Superficial peels affect the outer epidermis; medium-depth peels reach further; deep phenol-based peels can create major injury and require medical monitoring. Product name alone does not define depth.
Dose includes formulation and technique
Agent, concentration, pH, free-acid value, layers, volume, exposure time, skin preparation, occlusion, neutralization, and treatment area all matter. A “30% peel” from two products can behave differently.
Skin tone and pigment
Inflammation can trigger post-inflammatory hyperpigmentation or hypopigmentation. Melasma may recur or worsen. Deeper is not automatically better, especially with darker skin tones, recent tanning, impaired healing, or prior pigment problems.
Deep peels are not spa facials
Medium and deep peels carry infection, scarring, prolonged redness, demarcation lines, and systemic risks. Phenol can affect heart rhythm and requires appropriate selection, dosing, monitoring, and emergency capability.
Benefits
Can improve selected texture, superficial pigment, acne, or fine lines
Offers superficial through deeper treatment levels
Superficial options may have limited downtime
Can be matched to a specific skin concern and recovery tolerance
Does not require an implanted product
The Procedure
1
Diagnose and screen
2
Define the peel dose
3
Apply with protection
4
Healing and surveillance
Preparation
Disclose cold sores, active dermatitis, allergies including aspirin sensitivity for salicylate products, pregnancy, isotretinoin, photosensitizing medicines, keloids, pigment history, recent tanning, facial surgery, and cardiac, kidney, or liver disease for deeper peels.
Recovery & Aftercare
Superficial peels may cause days of dryness or flaking; medium and deep peels can cause swelling, crusting, wound care, and prolonged redness. Do not pick peeling skin. Report severe pain, pus, fever, blisters, or delayed healing.
Risks & Considerations
Burns, pain, swelling, prolonged redness, infection, herpes reactivation, scarring, milia, acne flare, hyper- or hypopigmentation, demarcation lines, and poor result. Deep phenol peels can cause cardiac arrhythmia and systemic toxicity.
Frequently Asked Questions
References
[1]
American Society for Dermatologic Surgery. Chemical Peels.
https://www.asds.net/skin-experts/skin-treatments/chemical-peels[2]
PubMed: Chemical Peels in Skin of Color Reviews.
https://pubmed.ncbi.nlm.nih.gov/?term=chemical+peels+review+skin+of+color[3]
PubMed: Phenol Peel Cardiac Safety Literature.
https://pubmed.ncbi.nlm.nih.gov/?term=phenol+peel+cardiac+toxicity
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