Cosmetic dermatology is a subspecialty of dermatology that focuses on improving the appearance of the skin, hair, and nails. It involves various non-invasive and minimally invasive procedures such as Botox injections, dermal fillers, chemical peels, laser therapy, and microdermabrasion to address concerns like wrinkles, acne scars, pigmentation issues, and aging skin. Cosmetic dermatologists are trained to perform these procedures safely and effectively to enhance the aesthetic appearance of their patients.