Acne Scar Treatment · TCA CROSS
TCA CROSS for Ice Pick Scars in Mount Gravatt, Brisbane
A precise treatment for narrow, deep ice pick scars that lasers often can't reach, performed by Dr Mitch Robinson, FACD, or our cosmetic nurse Hatsu.
Specialist consultations from $395 · No referral needed to book · Treatment costs confirmed in writing before you start · See fees
A dermatologist-led clinic, founded by Dr Mitch Robinson, FACD, who teaches laser to dermatologists and registrars and has fellowship training in complex scarring.
Meet Dr MitchTCA CROSS for Acne Scars at a Glance
What TCA CROSS Treats
Ice pick scars are narrow (usually under 2 mm) and deep, like small punctures in the skin. Because they are so narrow, resurfacing lasers tend to skim across them without reaching the base. TCA CROSS treats each scar from the inside, which is why it is often part of our acne scar treatment plans.
CROSS stands for chemical reconstruction of skin scars. Only the scar itself is treated, and the skin around it is left alone, so recovery is quick.
- Ice pick scars on the cheeks, temples and forehead
- Narrow boxcar scars with steep walls
- Enlarged, scarred pores in selected cases
How TCA CROSS Works
The treatment is quick and done in the clinic chair.
Scars are mapped
Each ice pick scar is marked under side lighting, which shows depth more clearly than overhead light.
Acid is placed
A high-strength trichloroacetic acid (TCA) is pressed into the base of each scar with a fine applicator. The scar turns white for a few minutes.
Collagen rebuilds
Over the following weeks, new collagen forms inside the scar and gradually raises its floor.
What to Expect
Most people return to normal activities the same day.
On the day
- A brief sting at each scar as the acid is applied
- White frosting that fades within minutes
- No numbing needed for most people
Recovery
- Small dark crusts form and lift off in about 5 to 7 days
- Pinkness in treated spots can last a few weeks
- Daily SPF 50+ sunscreen to protect healing skin
- Improvement continues for several months
Often Combined With
Most people have more than one scar type, so TCA CROSS is usually one part of a plan.
Pico Laser
- For mild scarring, especially in Asian skin
- Usually 4–6 combined sessions, 6 weeks apart
Subcision
- Releases tethered rolling scars
- Done in the same plan, at a different visit
Risks and Side Effects
All procedures carry risks. Suitability, recovery and results vary between individuals.
Possible side effects
- Temporary darkening or lightening of the skin, more likely in darker skin types
- Redness and crusting
- Infection, which is uncommon
- Rarely, widening of a scar
Lowering the risk
- Assessment of your skin type before treatment
- Precise application to the scar only
- Pigment-control skincare where needed
- Strict sun protection while healing
Common Questions
TCA CROSS for Acne Scars: Common Questions
Does TCA CROSS hurt?
There is a brief sting at each scar as the acid is applied. Most people manage without numbing, and the discomfort settles within minutes.
How many TCA CROSS sessions will I need?
Most people need 2 to 4 sessions, spaced 4 to 6 weeks apart. Deeper scars may need more.
Is TCA CROSS suitable for darker skin?
It can be, with care. Darker skin has a higher risk of dark patches after treatment, so we assess your skin first and may use preparation skincare.
Can TCA CROSS treat rolling scars?
No. Rolling scars are pulled down by bands under the skin and need subcision. TCA CROSS is for narrow ice pick and boxcar scars.
When will I see results?
The scars gradually look shallower over the months after each session, as new collagen forms.
How much does TCA CROSS cost?
It depends on how many scars are treated and whether it is combined with other treatments. You get a written quote after your consultation.
Find Out What Will Work for Your Scars
Book a consultation with Dr Mitch. He'll name your scar types, explain what treatment can and can't do, and give you a written plan with the total cost before you decide.
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Clinical content overseen by Dr Mitch Robinson, FACD (AHPRA MED0001946771). Updated October 2026. General information only, not medical advice. All procedures carry risks; suitability, recovery and results vary between individuals.