Acne scars can leave lasting marks that affect both appearance and confidence. While topical products may help with surface issues, deeper pitted acne scars often require targeted medical treatment. One of the most effective solutions for these types of scars is TCA CROSS.
At Lumine Dermatology, we specialise in advanced acne scar treatments tailored to individual needs. TCA CROSS treatment uses high-concentration trichloroacetic acid applied directly into acne scars to trigger collagen production and remodel the skin. The result is a gradual filling of the depressions, leading to a more shallow ice pick scar over time.
TCA CROSS stands for Trichloroacetic Acid Chemical Reconstruction of Skin Scars. Unlike general chemical peels, which are applied across the surface of the skin, TCA CROSS is highly targeted. The acid is placed precisely into the base of each scar, sparing the surrounding skin.
This controlled technique stimulates a wound-healing response. Fibroblasts in the skin are activated to produce new collagen, which gradually fills the scar and raises it closer to the level of the surrounding skin. Multiple sessions are usually required, but the improvement can be long-lasting.
In Lumine Dermatology, we often use 100% trichloroacetic acid for ice pick scars.
TCA CROSS procedure is particularly effective for certain types of acne scars that are resistant to other methods.
A consultation with our dermatologist is essential to identify the scar types correctly and design a personalised, multimodal treatment plan.
During TCA CROSS procedure, a high-strength trichloroacetic acid solution is applied with a fine applicator directly into the base of the scar. The solution causes a localised reaction, leading to the formation of a small frost at the site. This reaction is the beginning of a controlled healing process.
Over the following days, the treated area either turns red or forms a scab which naturally falls off after a few days. Underneath, new collagen begins to form. With repeated treatments spaced weeks apart, the scars become shallower as the skin remodels.
The surrounding skin remains unaffected because the treatment is localised, which makes downtime shorter compared to full-face resurfacing procedures.
TCA CROSS treatment offers several unique advantages for acne scar patients.
Patients often see progressive improvement over a series of treatments, with an improvement in the depth of the deep ice pick scar.
A consultation is always the first step. Our dermatologist evaluates your skin, scar type, and medical history before recommending TCA CROSS procedure. If suitable, the procedure can be performed in-clinic.
The skin is cleansed, and the targeted scars are treated one by one using a fine applicator. The procedure is quick, and most patients tolerate it well. A mild stinging sensation may occur briefly as the acid works on the scar tissue.
After the session, the treated areas appear white for a few hours before turning red. Small scabs form over the following days and naturally shed within a week. Multiple sessions are usually scheduled four to six weeks apart to achieve the best results.
Downtime with TCA CROSS is relatively short compared to many resurfacing procedures. Redness and scabbing are expected, but they settle as the skin heals. It is important not to pick at scabs to avoid pigmentation or infection.
Sun protection is essential during the recovery period. The skin is more sensitive after treatment, and UV exposure can increase the risk of post-inflammatory hyperpigmentation. Patients are advised to apply broad-spectrum sunscreen daily and avoid prolonged sun exposure.
Moisturising and gentle skincare support the healing process. Harsh exfoliants or strong active products should be avoided until the skin has fully recovered. At Lumine Dermatology, we provide clear aftercare instructions and schedule follow-ups to ensure safe healing and progressive improvement.
While TCA CROSS procedure is highly effective for certain scar types, acne scarring is often a mixture of different patterns. For this reason, many patients benefit from combination therapy.
Fractional carbon dioxide laser resurfacing can smooth out surface irregularities and improve skin tone, while TCA CROSS targets deeper scars. Subcision helps release tethered rolling scars, and collagen-stimulating fillers can help boost collagen production to fill up atrophic acne scars better. Microneedling radiofrequency or energy-based devices may also complement the treatment plan.
For deeper ice pick scars, TCA cross may be insufficient and a punch excision of the scar may need to be performed.
At Lumine Dermatology, we create a comprehensive approach tailored to each patient’s needs, ensuring that every scar type is addressed with the most suitable method.
Acne scar treatment requires more than a single technique. It requires expertise in identifying scar types and selecting the right combination of methods. At Lumine Dermatology, patients are guided by a Ministry of Health-accredited dermatologist who has international training in advanced acne scar treatments, lasers, and surgical dermatology.
We prioritise safety and precision, utilising only precise treatments and employing sterile techniques. Our clinic is equipped with day-surgery facilities and advanced dermatological devices, allowing us to provide integrated care in one location.
What sets our care apart is the balance of medical accuracy and aesthetic finesse. We aim not only to treat scars but to restore confidence by delivering natural-looking results with minimal downtime.
Most patients experience a mild stinging sensation during application. The discomfort is brief and well-tolerated.
This depends on the severity and number of scars. Most patients need between three to six sessions for noticeable improvement.
Yes. It is often paired with lasers, subcision with polynucleotides, collagen stimulating fillers or punch excisions for comprehensive scar management.
Risks are low when performed by a qualified dermatologist. Temporary redness, scabbing, or post-inflammatory hyperpigmentation may occur, but these are manageable with proper aftercare and are often self-limiting.
The improvement from collagen boosting is long-lasting. Maintenance treatments may be recommended depending on your skin condition.
Smooth, clear skin is possible with the right treatment plan. At Lumine Dermatology, TCA CROSS treatment is performed with precision and care, helping patients achieve lasting improvement in acne scars. Schedule a consultation today and let our specialist design a personalised plan for your skin.
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