Best skin & hair clinic near Shaheen bagh Lush skin & hair clinic we provide A TCA (trichloroacetic acid) peel is a type of chemical peel used to improve the appearance of the skin by removing its damaged outer layers. It’s commonly used to treat fine lines, sun damage, acne scars, and uneven skin tone. TCA peels range from light to medium depth, depending on the concentration used, and they stimulate collagen production during the healing process.