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What can a TCA peel do for acne scars?
Acne scars form when deep spots damage the collagen beneath, leaving dents. Trichloroacetic acid causes a controlled injury that the skin repairs with fresh collagen. For shallow boxcar and rolling scars, your doctor applies a lower-strength TCA peel over the whole area, usually as a series.
Icepick scars are narrow and deep, so a peel alone barely reaches them. TCA CROSS solves that: strong acid is pressed into each scar with a fine applicator. In studies, most people saw their scars improve by half or more over several sessions. Deep rolling scars usually need Microneedling RF as well.
Who shouldn’t have a TCA peel for acne scars?
A TCA scar treatment isn’t for you if you are pregnant or breastfeeding, still have active breakouts, have a cold sore or infection on the face, have recently taken isotretinoin (Roaccutane), or tend to form keloid scars. Your doctor confirms all of this first.
Treating acne scars with TCA, step by step
- Free consultation: your doctor maps your scar types and chooses a peel, TCA CROSS or both.
- Skin preparation: two to four weeks of a home cream and sun protection get your skin ready.
- Treatment: the acid is spread across the skin or dotted into each scar; about 20–40 minutes.
- Healing: treated scars form small scabs or the skin flakes; this settles in about a week.
- Course: usually 3–6 sessions, 2–6 weeks apart, guided by how your scars respond.
What results can I expect for my scars?
Most people see a real change after two or three sessions, as new collagen forms, and it keeps building for a few months after the last one. The reward is scars that are visibly shallower and far less noticeable in daylight.
After TCA CROSS, each treated scar turns white, then forms a small scab that falls off within a week. For people with brown skin, short-lived dark marks are the commonest side effect, and daily sun protection helps prevent them.
Aftercare
- Let scabs fall off; never pick them
- Make-up only once the skin has healed
- Skip gym, sauna and steam for 2–3 days
- Sunscreen daily to prevent dark marks
Why choose Cutera Aesthetics
- Doctor-led: your acne scar treatment is assessed, planned and performed by our qualified doctors.
- Free consultation: an honest assessment and a clear plan before you commit to anything.
- A plan made for you: your treatment is tailored to your goals, your skin and your health.
- 12 clinics in 7 cities: Karachi, Lahore, Islamabad, Rawalpindi, Faisalabad, Hyderabad and Sialkot. Find your nearest clinic.
Sources
- American Academy of Dermatology. Acne scars: Consultation and treatment. Treatment by scar type, peel sessions and preparation.
- Bhardwaj D, Khunger N. An assessment of the efficacy and safety of CROSS technique with 100% TCA in the management of ice pick acne scars. Journal of Cutaneous and Aesthetic Surgery, 2010; 3(2): 93–96.
- Puri N. Efficacy of modified Jessner’s peel and 20% TCA versus 20% TCA peel alone for the treatment of acne scars. Journal of Cutaneous and Aesthetic Surgery, 2015; 8(1): 42–45.
- Stratman S, He H. The use of chemical reconstruction of skin scars (CROSS) method with trichloroacetic acid (TCA) for atrophic scars: a comprehensive review on application techniques, adjunct therapies, and complications. Journal of Clinical and Aesthetic Dermatology, 2026; 19(6): 52–67.
