What to know about a trichloroacetic acid chemical peel

TCA is applied to prepared skin so the surface proteins react and the treated layer later sheds. The clinician chooses the application method and depth according to the concern, treatment area, skin tone, sensitivity and previous skincare. A lighter application may cause redness and flaking, while a deeper treatment can create more pronounced swelling, crusting and recovery needs. The goal may include improving uneven texture, some marks or selected pigmentation, but results vary and a peel is not suitable for every active rash, wound or infection.

During consultation, disclose recent tanning, cold sores, eczema, medicines, allergies and any tendency to form raised scars. Follow instructions about stopping irritating products and protecting the skin before treatment. Afterwards, use the recommended gentle cleanser, moisturiser and sun protection. Do not pull peeling skin, scrub the area or add acids and retinoids until your clinician says the barrier has recovered. Keep follow-up advice available because the appearance can change during healing.

Contact the clinic for worsening pain, swelling, blistering, persistent burning, pus, fever or redness that spreads. Prompt assessment matters if the treated area becomes increasingly tender or develops unusual darkening or lightening. Seek urgent care for facial swelling, breathing difficulty, faintness or widespread hives. Do not neutralise or treat a peel at home with another chemical.

Ask what depth is planned, which concerns it is intended to address, how your skin tone affects pigment-change risk, what products to pause and when they can restart, and what healing changes should trigger a call.