An esthetician is an expert in skin care and beauty treatments, such as pedicures. Pedicures involve the trimming and filing of nails, removal of dead skin, and the application of moisturizers and other treatments to the feet. Estheticians are also trained in waxing, facials, and other treatments that help improve the appearance of the skin. They are knowledgeable in the use of products and techniques to help clients achieve their desired look.