What is a TCA Chemical Peel?

Thank you for your question.

Trichloroacetic acid (TCA) is a commonly used agent for chemical peeling and has the potential to decrease the appearance of sunspots and fine lines. Chemical peeling removes the outer layer of skin generating new cell growth and collagen formation that results in younger looking skin.

Depending on the concentration and application, TCA peels can target superficial to deeper layers of skin.  Generally these concentrations range from 10-50%. In California, TCA peels greater than 20% should only be applied by board certified healthcare professionals specializing in plastic surgery or dermatology and who are experienced with deep chemical peels. These concentration requirements vary from state to state. The concentration Downtime for TCA peels is typically 5-7 days during which time treated skin appears to “slough” off.

Patients with darker skin may benefit from pre-treatment with topical retinoids (i.e. Retin-A or Renova) and/or hydroquinone to reduce the risk of post-treatment darkening of the skin, which is the most common side effect.  For all skin types extensive measures must be taken to avoid sun exposure after treatment, especially during the first two weeks.

I hope this helps.

Trichloroacetic acid or TCA chemical peel is one of the most tried and true aesthetic procedure. The strength varies from 10% to 70% where 35% is most commonly used to bring out medium depth peel. The application of the TCA by a board-certified dermatologist can effectively minimize precancerous lesions, smooth out facial texture and fine lines. Some dermatologists may perform Jessner's peel prior to TCA peel to bring about medium-to-deep peel and augment the cosmetic benefit. Expect to have a week of downtime and commit to strict daily sun protection before, during and after chemical peel.

TCA is a chemical peeling agent that smooths fine lines and removes some skin imperffections such as brown spots and sun damage. TCA may be combined with another peeling agent known as Jessner's solution. This allows a more uniform and thorough result. TCA is generally conisdered a"medium depth" peel and thus you should expect more than you would acheive with a glycolic peel, but less than with laser skin resurfacing. Healing time is usually 3-5 days.