Trichloroacetic acid (TCA) is used as an intermediate to deep peeling agent in concentrations ranging from 20-50%. Depth of penetration is increased as concentration increases, with 50% TCA penetrating into the reticular dermis. Concentrations higher than 35% are not recommended because of the high risk of scarring.

Trichloroacetic acid peels:

• are preferred for darker-skinned patients over Phenol
• smooth out fine surface wrinkles
• remove superficial blemishes
• correct skin pigment problems

Trichloroacetic acid peels may:

• require pre-treatment with Retin-A or AHA creams
• require repeat treatment to maintain results
• require the use of sunblock for several months (this is a must)
• take several days to heal depending on the peel depth