Persistent, deep-set scars—especially those caused by acne—are often resistant to traditional resurfacing methods. TCA Cross (Trichloroacetic Acid Chemical Reconstruction of Skin Scars) is a targeted treatment designed to jumpstart skin regeneration deep within each scar, helping rebuild collagen and improve surface texture from the inside out.
At Metropolis Dermatology in Pasadena, CA, we offer expertly administered TCA Cross treatments that visibly soften scar depth and smooth uneven skin, without surgery or prolonged downtime.
What is TCA Cross Scar Treatment?
TCA Cross is a highly specialized skin-repair procedure that involves placing a concentrated solution of trichloroacetic acid directly into atrophic (depressed) scars. By targeting only the scarred tissue, this method activates a controlled healing response that stimulates collagen renewal beneath the surface.
TCA Cross is especially effective for:
- Ice-pick scars – Narrow, sharp depressions that reach deep into the dermis.
- Boxcar scars – Wide, defined indentations with steep edges.
- Resistant acne scars – Marks that haven’t responded well to other therapies.
This precision-based approach enables focused skin regeneration without affecting the surrounding healthy skin, making it ideal for localized treatment.
How the TCA Cross Process Works
Each treatment session is customized to your skin’s specific scarring pattern and healing capacity. Here’s how the process unfolds:
- Initial Evaluation
We begin with a thorough skin analysis to determine whether TCA Cross is the best match for your concerns and to develop a personalized plan. - Pinpoint Application
Using a fine-tipped instrument, a high-strength TCA solution (typically between 70% to 100%) is applied directly into the base of each scar. - Immediate Frosting Reaction
The treated area momentarily turns white (a “frosting” effect), indicating an active response that will trigger new tissue formation. - Deep Collagen Induction
Over the following weeks, the skin gradually produces collagen in the treated areas, lifting the depressed scars and smoothing skin from within.
Most patients will benefit from a series of treatments spaced several weeks apart for progressive, natural-looking improvement.
Why Choose TCA Cross for Scar Reduction?
When it comes to pitted scars, many options only address the surface. TCA Cross goes deeper—literally—to activate healing where it counts.
- Exceptional for Deep Acne Scars
Especially effective for stubborn ice-pick and boxcar scars. - Promotes Ongoing Skin Remodeling
Encourages continued collagen production well after treatment. - Scar-Specific Precision
Directly targets individual scars with minimal impact on surrounding skin. - Low-Impact, Non-Surgical Approach
Requires no incisions or sutures—just precise chemical stimulation. - Visibly Smoother Skin
Enhances overall texture and tone, helping skin look more refined and balanced.
FAQs
How many TCA Cross treatments will I need?
Most clients require 3 to 6 sessions, spaced 4 to 6 weeks apart, depending on how deep or widespread the scars are.
Is the procedure painful?
You may experience a mild stinging or burning sensation during application, but it is typically brief. We often use soothing products post-treatment to ensure comfort.
What should I expect post-treatment?
The treated spots may scab or peel over a few days. Redness is common and part of the healing process, usually resolving within a week.
Can I combine TCA Cross with other treatments?
Yes. TCA Cross pairs well with other skin-rejuvenating procedures such as microneedling, laser resurfacing, or dermal fillers to boost results.
Are there any side effects?
Temporary irritation, flaking, or slight pigmentation shifts can occur, but these effects usually resolve with proper aftercare and sun protection.
Hear from
Real Patients
Reveal Smoother Skin—One Scar at a Time
If you’ve tried other treatments with minimal results, TCA Cross could be the breakthrough you’ve been waiting for. At Metropolis Dermatology in Pasadena, CA, we take a precise, patient-focused approach to scar revision—designed to restore skin that looks and feels more confident. Book your consultation today and let’s rebuild smoother skin from the inside out.