Which professional primarily focuses on cosmetic care of hands, feet, and nails?

The professional who primarily focuses on the cosmetic care of hands, feet, and nails is a manicurist. Manicurists specialize in providing services such as nail care, manicure and pedicure treatments, nail enhancements, and applying nail polish and other cosmetic products specifically designed for the care of hands and feet. Their training emphasizes these specific techniques, allowing them to enhance the aesthetic appearance and health of clients' nails and skin in these areas.

In contrast, a cosmetologist has a broader scope of practice, which includes hairstyling, skincare, and makeup, in addition to nail services. An esthetician focuses primarily on skin care and beauty treatments related to the face and body but does not specialize in nail care. A manager in a salon might oversee operations and staff but does not typically provide direct cosmetic services such as nail care. Thus, the specialization of a manicurist in the care of hands, feet, and nails makes it the most appropriate choice for this question.