Best skin & hair clinic near Shaheen bagh Lush skin & hair clinic we provide A TCA (trichloroacetic acid) peel is a medium to deep chemical peel used in skincare to treat a variety of skin concerns. It involves applying a solution of TCA to the skin, which causes the outer layers to exfoliate and eventually slough off. This process helps to improve the appearance of fine lines, wrinkles, acne scars, sun damage, and hyperpigmentation.