A TCA peel is a type of chemical peel that uses trichloroacetic acid to remove the top layer of dead skin cells and smooth the surface of the skin. It is a cosmetic procedure that can be performed by various practitioners, including dermatologists, physicians, physician assistants, and nurses. TCA peels are typically medium-depth, meaning they remove the top layer of skin and only a small amount of the underlying layer. They are available in medium to high concentrations, with stronger formulas creating a deep peel that removes more of the underlying layer of skin. TCA peels are effective for treating a range of skin concerns, including fine lines and wrinkles, hyperpigmentation, acne scars, and dull, uneven skin texture. They work by causing controlled damage to the outer layers of the skin, which triggers a healing response and stimulates the production of collagen and elastin. The depth of the peel can be adjusted based on the number of coats applied, making it a versatile treatment option for a variety of skin types and concerns. After the peel, the skin will likely be red, swollen, and tender, and over the next several days, the skin will begin to peel and flake off, revealing smoother, brighter, and more youthful-looking skin underneath. TCA peels are generally considered safe, but higher concentrations of TCA solution can increase a person’s risk of complications, such as reactivation of herpes, bacterial infection, scarring, and change in skin color. It is important to talk with a practitioner about the best peel for an individuals skin type and concerns.