Chemical peels may be light (superficial), medium, or deep. Light chemical peels only impact the outer layer of skin (epidermis) and are typically used to treat fine lines, acne, uneven skin tone, and dry skin. Medium chemical peels impact the epidermis and some portion of the dermis to treat deeper wrinkles, signs of aging, pigmentation issues, and minimal scarring, such as mild acne scars. Deep chemical peels penetrate further into the layers of skin to address more severe scarring and signs of aging, like deeper wrinkles and prominent fine lines.