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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.

Best Board Certified Dermatologist Dusan Sajic, MD, PhD

Dusan Sajic, MD, PhD

Famous Board Certified Dermatologist Richard Backstein, MD

Richard Backstein, MD

Board Certified Dermatologist near me Sonja Sajic, CCPA

Sonja Sajic, CCPA

Board Certified Dermatologist near me Daniel Wong, MD, FRCPC

Daniel Wong, MD, FRCPC

Board Certified Dermatologist near me Tiffany Chen, MD, FRCPC, DABD

Tiffany Chen, MD, FRCPC, DABD

Canadian Certified Physician Assistant, Toni Alberto, CCPA

Toni Alberto, CCPA

With more than 20 years of experience, deRMA Skin Institute strive to offer patients the most advanced treatments available to keep their skin healthy and looking its best. Board Certified Dermatologist, Dusan Sajic, MD, PhD, board-certified Plastic and Reconstructive Surgeon, Richard Backstein, MD, FRCSC, Sonja Sajic, CCPA, Toni Alberto CCPA, Tiffany Chen MD PRCPC and Daniel Wong MD FRCPC are committed to providing state-of-the-art medical, surgical and cosmetic treatments to all patients in Guelph, Burlington, Cambridge, Kitchener, Hamilton, Milton, and surrounding areas.


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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