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TCA Peel

What Exactly Is A TCA Peel?

Trichloroacetic acid (TCA) is commonly used in low concentrations (20–35%) for a chemical peel to enhance the appearance of facial scars and skin aging.

TCA CROSS: What Is It And How Does It Work?

The chemical repair of skin scars (CROSS) using trichloroacetic acid is known as TCA CROSS. It is most commonly used to treat atrophic acne scars. It’s affordable, safe, and efficient.

The choice to do a TCA CROSS is based on the following factors:

  • Acne scarring’s type and severity
  • Preferences and expectations of patient
  • Clinician expectations and experience

TCA CROSS Is Effective In The Treatment Of The Following Forms Of Acne Scars:

  • Boxcar scars
  • Rolling scars
  • Ice-pick scars

Combining Treatments With TCA CROSS

Treatments that can be combined with TCA CROSS for acne scars include:

  • Topical retinoids
  • Microneedling
  • Dermapen
  • Fractional laser treatment
  • Subcision

The Effects Of TCA CROSS

When used correctly, TCA CROSS is moderately effective for atrophic acne scars. Patients may expect a 1- to 2-grade improvement in their acne scars over a 6-month period. Greater levels of patient satisfaction are associated with more severe pre-treatment scarring.

After The Procedure

The patient should be advised:

  • Frosting of the scar surface after treatment will last up to 12 hours
  • The skin around the treated sites will be red and sore for 24 to 48 hours
  • After 2 to 3 days a small scab will develop, which falls off after 3 to 7 days
  • He or she may wash as normal and may apply make-up if desired
  • Sunscreen is recommended to reduce the chance of pigmentation

Most patients require 3 to 6 treatments with TCA CROSS for optimum improvement. Treatments may be repeated at 2 to 8-week intervals over 6 months.

Schedule A Consultation

Women and men interested in acne scar treatments with a TCA peel choose deRMA Skin Institute for their treatments. Request a consultation using the online form or call us at (888) 803-3762 to schedule an appointment with one of our dermatologists.


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If you are an existing patient inquiring about appointments and services, please contact

Guelph Cosmetic Department: (888) 803-3762

Guelph Medical Department: (519) 836-8558

Burlington Cosmetic Department: (888) 803-3762

Burlington Medical Department: (905) 849-5057