TCA CROSS

TCA CROSS (Trichloroacetic Acid Chemical Reconstruction of Skin Scars) is a specialized dermatological procedure used to improve the appearance of certain types of acne scars, particularly ice pick and boxcar scars. It involves the targeted application of trichloroacetic acid (TCA) to induce controlled chemical injury to the scar tissue, stimulating collagen production and skin remodeling.

How does it work?

TCA causes a controlled chemical injury to the scar tissue. This is visible as a white frosting on the treated area due to protein denaturation in the skin. The skin undergoes a natural healing process, during which new collagen is produced, and the scar tissue is gradually remodeled.

How Is TCA CROSS Performed?

A high concentration of TCA (typically 50%–100%) is applied directly to the scar using a fine applicator, such as a toothpick or fine needle. This ensures precision and prevents damage to the surrounding skin.

Frequently Asked Questions

What is TCA CROSS, and how does it work?

TCA CROSS (Trichloroacetic Acid Chemical Reconstruction of Skin Scars) is a skin treatment that targets acne scars, especially ice pick and boxcar scars. High concentrations of trichloroacetic acid (TCA) are applied directly to scars to induce collagen production and skin remodeling.

Is TCA CROSS painful?

The procedure can cause mild discomfort or a stinging sensation during application. However, this is usually tolerable and short-lived. Topical anesthetics are generally not required.

How many sessions are needed to see results?

Most people require 2–6 sessions spaced 4–6 weeks apart to achieve noticeable improvements. The exact number depends on the severity and type of scars.

What are the potential side effects of TCA CROSS?

Common side effects include temporary redness, swelling, scabbing, and crusting. Rarely, changes in pigmentation (hyperpigmentation or hypopigmentation) or minor scarring may occur, especially in darker skin types.

Is TCA CROSS suitable for all skin types?

While it can be used on most skin types, individuals with darker skin may have a higher risk of pigmentation changes.

How long does it take to heal after a TCA CROSS treatment?

Healing typically takes 7–10 days. During this time, treated areas may appear red or crusted. Full collagen remodeling and scar improvement can take several months. Proper aftercare, including sun protection, is essential for optimal results.