/tri-klor-oh-ah-SEE-tik/
Definition
A medium-to-deep chemical peel acid that penetrates more layers than glycolic or salicylic — used for deeper wrinkles, stubborn pigmentation, and significant sun damage.
TCA (trichloroacetic acid) is the workhorse of medium-depth chemical peels. Depending on the concentration (typically 15–35%), it can produce anything from a few days of flaking to a full skin-resurfacing peel with 5–7 days of visible peeling and pinkness.
Chemical Peel
A skin treatment that uses controlled acid solutions to remove damaged outer layers, revealing smoother, more even skin underneath.
Glycolic Acid
An alpha-hydroxy acid (AHA) derived from sugarcane, used for chemical exfoliation. The smallest AHA molecule, it penetrates skin most effectively.
Salicylic Acid
A beta-hydroxy acid (BHA) that penetrates into pores to dissolve oil and dead skin buildup — especially effective for acne, blackheads, and congested skin.