The doctor on video

TCA CROSS: how ice pick acne scars are treated

With Doctor Florian A. Vallecillo Cabrera· Published: 12 November 2026
The doctor on video
Subtitles1:35

Video in Spanish · subtitles available

Ice pick acne scars are narrow and deep. In this short video we explain how TCA CROSS works, what a session in the clinic looks like, what aftercare it requires, and why it should always be performed by an experienced physician.

TCA CROSS involves applying high-concentration trichloroacetic acid very precisely to the base of each narrow atrophic scar. The minimal, controlled injury this causes stimulates collagen production, and the scar gradually fills in from within; the surrounding skin is left untreated.

The session is performed in the clinic and is brief. Afterwards, small scabs may appear for a few days — these should not be picked off — and sun protection is essential. Several sessions spaced a few weeks apart are usually needed, and the treatment can be combined with others, such as fractional laser.

Results depend on the type of scar and are not guaranteed: the indication requires an individualised medical assessment. To learn about the mechanism, indications, risks and evidence, read the full article on TCA CROSS.

Doctor Florian A. Vallecillo Cabrera

Doctor Florian A. Vallecillo Cabrera

The doctor on video

Informational content by Doctor Florian A. Vallecillo Cabrera. It does not replace an in-person consultation or an individual diagnosis.

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