Trichloroacetic acid (TCA)

Trichloroacetic acid (TCA) is mostly used for superficial as well as medium depth peel. In order to maximize the effects and overcome complications such as scarring and pigmentary changes that can occur with deep chemical peels, focal application of TCA, restricted to the atrophic scars has been conducted. The technique called CROSS. Chemical Reconstruction Of Skin Scars is a technique using high concentrations of trichloroacetic acid focally on atrophic acne scars to induce inflammation followed by collagenisation. This can lead to reduction in the appearance of scars and cosmetic improvement.


  • Improve medium to deep scar- ”cepick scar” and “ box car acne scar”
  • Suitable for all skin types including Asian or darker skin type

Ideal Number of Sessions

To achieve the best treatment outcome, we recommend at least 3-5 sessions, every 6-8 weeks.

between sessions for best results.


  • Sunburn
  • Psoriasis/Eczema
  • Recent facial surgery
  • Open wounds/Cold sores
  • Roaccutane
  • Allergies to the peel ingredients
  • Active Rosacea
  • Cancer or Radiation Therapy
  • Warfarin
  • Pregnancy or breast feeding

Pre-treatment care and precautions

  • Make up must never be worn prior to treatment. Take it off the night before, if makeup is mixed with TCA it evoke an inflammatory response and extend healing times.
  • Avoid unprotected ultraviolet ray exposure for a minimum of 4 weeks before your treatment, as well as throughout the duration of your treatments.
  • Apply broad-spectrum sun protection of at least SPF 30+ (UVB/UVA) daily.
  • Prepare your skin for treatments and enhancing the results by using exfoliating skincare products.
  • Refrain from using prescription vitamin A supplements (Retrieve®, RetinA®, Steva A®) or strong over-the-counter retinols at least 5 days prior to your treatment (unless advised otherwise).
  • Continue to take anti-viral medication prior to treatment if you have a history of herpes or cold sores to proactively prevent an onset caused by the procedure
  • Any areas treatment with muscle relaxants such as Botox® or dermal fillers or any other skin treatment must be completely healed before the treatment may be performed. This means that no swelling, bruising, discomfort, or redness may be present on the skin prior to treatment.

If you have any concerns pertaining to lifestyle or medication changes during your treatment, please contact the clinic. This will help us provide you with the best possible treatment outcome.

Post-treatment care

  • During the healing phase, use a bland moisturiser free from active ingredients and perfumes applied frequently throughout the day.
  • Make sure the treated area is moist all the time.
  • Apply broad-spectrum sun protection of at least SPF 30+ (UVB/UVA) daily, and avoid unnecessary sun exposure.
  • No make-up for the first 24 hours post-treatment.
  • Minimise contact with water for 4 to 6 hours after your chemical peel.
  • Avoid exercise or other activities that produce heat for 24 to 48 hours.
  • Avoid contact with chlorinated water for 24 to 48 hours.
  • Refrain from picking or pulling at crusting skin as it may cause infections that result in scarring.
  • Refrain from waxing or any other forms of unnecessary trauma to the skin during the healing phase.
  • Use a fading cream such as HQ or Lytera, starting 7 days after the procedure

Should you sense any cause for concern, please contact the clinic immediately for further post-treatment care instructions.