Preparing for TCA Cross
At DRS Skincare Hamilton, ON
| Treatment | TCA Cross |
| Indications | Scars (deep such as ice pick, superficial, or boxcar) |
| Treatment Recovery | Up to 2 weeks |
| # Of Treatments Required | Up to 4 treatments |
| Best Results Seen | 1 month post final treatment |
*estimate of sessions to be determined in consultation
How to Prepare for TCA CROSS Treatment for Acne Scars
Safe, Effective, and Comfortable Scar Reduction in Hamilton, Ontario
Acne scars can be frustrating, persistent reminders of past breakouts. At DRS Skincare, we offer advanced scar-revision treatments, including TCA CROSS (Chemical Reconstruction of Skin Scars)—a targeted chemical peel technique designed to improve deep acne scars such as ice-pick and boxcar scars.
Proper preparation before your TCA CROSS treatment is essential to maximize results, reduce complications, and ensure a safe and comfortable experience. Below, we outline exactly how to prepare for treatment and what to expect.
What is TCA CROSS Treatment?
TCA CROSS is a specialized acne scar treatment that uses high-concentration trichloroacetic acid (TCA) applied directly into individual scars. Unlike traditional chemical peels that treat large surface areas, TCA CROSS focuses precisely on scar tissue to stimulate collagen remodelling from within.
This technique is commonly used for:
- Ice-pick acne scars
- Deep boxcar scars
- Select atrophic acne scars
- Acne scars resistant to lasers or microneedling
How Should I Prepare for TCA CROSS Treatment?
If your dermatologist determines that TCA CROSS is appropriate for your acne scars, you will be asked to temporarily stop certain medications, skincare products, and treatments prior to your procedure.
What Products and Medications Should I Stop Before Treatment?
Please discontinue the following as advised by your provider:
- Prescription retinoids (e.g. tretinoin)
- Over-the-counter retinol products
- Glycolic acid and other alpha-hydroxy acids (AHAs)
- Salicylic acid and other beta-hydroxy acids (BHAs)
- Benzoyl peroxide
- Strong exfoliating agents or peels
What Treatments Should I Avoid?
Avoid any procedures that exfoliate or irritate the skin, including:
- Waxing
- Laser hair removal
- Chemical peels
- Aggressive facials
Tip: Stick to gentle, fragrance-free cleansers and moisturizers in the weeks leading up to treatment.
Why Is Pre-Treatment Care So Important?
Although TCA CROSS is generally well tolerated when performed by experienced medical professionals, improper skin preparation can increase the risk of:
- Excessive irritation or burning
- Delayed healing
- Post-inflammatory hyperpigmentation
- Scarring or uneven results
Many of the products listed above compromise the skin barrier. Pausing them before treatment allows your skin to heal optimally and respond predictably to the TCA solution.
Who Is Not an Ideal Candidate for TCA CROSS?
During your consultation, we carefully assess your medical history, skin type, and goals. TCA CROSS may not be recommended if you:
- Are pregnant or breastfeeding
- Have a history of keloid or hypertrophic scarring
- Are unable to avoid direct sun exposure for at least two weeks after treatment
If TCA CROSS is not suitable, we offer alternative acne scar treatments such as subcision, fractional CO₂ laser, RF microneedling, biostimulators, and combination therapy.
How is My Skin Prepared on Treatment Day?
On the day of your procedure:
- Your skin is thoroughly cleansed to remove makeup, oils, and debris
- Sensitive areas (eyes, lips, nostrils) are protected with petroleum-based ointments such as Aquaphor or Vaseline
- The TCA solution is applied precisely into each scar to maximize collagen stimulation while protecting the surrounding skin
This meticulous preparation ensures accurate application, optimal results, and improved comfort.
Start Your Acne Scar Treatment Journey
If you’re ready to improve acne scars and restore smoother, healthier-looking skin, our team is here to help. TCA CROSS is often most effective when combined with other evidence-based treatments tailored to your specific skin type.
Schedule a consultation at DRS Skincare by calling (905) 524-1712 to speak with our team in Hamilton, Ontario, and learn whether TCA CROSS is right for you.
