A controlled resurfacing procedure that removes damaged outer skin and prompts the deeper layers to rebuild. Best supported for softening fine lines, rough texture, and uneven skin tone; more modest for acne and firmness; limited for pitted scars. Deeper peels do more but carry greater risk of lasting color change and scarring. (Full Review)

Protocol

Superficial Series

Glycolic 20–70% or salicylic 20–30%

Every 2–4 weeks, 4–6 sessions; for texture, tone, mild pigmentation, acne

Medium-Depth

Jessner's or 70% glycolic followed by 35% TCA

Usually a single treatment; for photoaging, deeper pigmentation, actinic damage

Deep Peel

Phenol-croton oil

Once under monitoring; reserved for lighter skin and significant photoaging

Time to effect

Deep Peel

Months

Full results emerge as redness fades

Medium Peel

2–4 weeks

Improvement after the initial peeling settles

Superficial

Days to weeks

Brief glow in days; tone and acne benefit over a series

Benefits

High: Fine lines, wrinkles, and skin texture; uneven pigmentation

Medium: Active acne; dermal collagen and skin tone

Low: Atrophic acne scars; enlarged pores and oiliness; actinic keratoses

Speculative: Long-term photoprotection; skin laxity and firmness

Contraindications

Active infection or open skin (herpes simplex outbreak, impetigo, dermatitis)

Very dark skin (Fitzpatrick V–VI) for medium/deep peels

History of keloids or hypertrophic scarring

Pregnancy and breastfeeding

Significant cardiac, hepatic, or renal disease

Unrealistic expectations or inability to comply with sun protection and aftercare

Key Interactions

Recent oral isotretinoin

Photosensitizing medications (tetracyclines such as doxycycline, certain diuretics, retinoids)

Topical over-the-counter actives (retinol, benzoyl peroxide, alpha- and beta-hydroxy acid products, scrubs)

Supplements with additive skin effects (high-dose vitamin A/retinoid supplements, topical vitamin C or niacinamide)

Concurrent procedures (recent laser, microneedling, waxing, or radiation to the area)

Risk & Side Effects

High: Post-inflammatory hyperpigmentation; transient redness, burning, flaking, and downtime

Medium: Scarring; infection; persistent hypopigmentation and demarcation lines; phenol cardiotoxicity

Low: Milia, acne flares, and contact dermatitis; ocular injury and ectropion

Speculative: Cumulative skin-barrier disruption from frequent superficial peeling

Monitoring

Marker	Target	Why
Fitzpatrick Skin Phototype	Type I–III	Predicts risk of post-peel darkening and guides agent and depth
Glogau Photoaging Class	Baseline (class I–IV)	Grades sun-damage severity to match peel depth and set realistic goals
12-Lead ECG	Normal sinus rhythm	Deep phenol peels can trigger arrhythmias via absorbed phenol
Serum Creatinine	~0.6–1.0 mg/dL	Phenol is cleared by the kidneys; poor clearance raises toxicity risk
Liver Enzymes (ALT/AST)	Under ~25 U/L	Phenol is processed by the liver; screens fitness for deep peels
Herpes Simplex (HSV) Status	No active lesions	Peeling can reactivate and spread cold-sore virus

Cadence: First week after medium and deep peels, again at 2–4 weeks as peeling resolves, then periodically (every few months for a superficial series)

Qualitative Assessment

Smoother, softer skin texture and reduced roughness
More even skin tone with fading of spots and blotchiness
Softening of fine lines and an overall brighter, more refreshed appearance
Fewer active acne lesions and less surface oiliness (for acne-focused peels)
Personal satisfaction with appearance balanced against acceptable downtime
Absence of lingering redness, darkening, or irritation beyond the expected recovery window

Chemical Peel for Skin Rejuvenation

Protocol

Benefits

Risk & Side Effects

Monitoring

Qualitative Assessment