Massage for the body is a popular beauty treatment, with various techniques offering benefits to the skin (including the application of beauty products) and for increasing mental well-being. Hair removal is offered at some beauty salons through treatments such as waxing and threading. Some beauty salons style hair instead of going to a separate hair salon, and some also offer sun tanning. Other treatments of the face are known as facials. Specialized beauty salons known as nail salons offer treatments such as manicures and pedicures for the nails. A manicure is a treatment for the hands, incorporating the fingernails and cuticles and often involving the application of nail polish, while a pedicure involves treatment of the feet, incorporating the toenails and the softening or removal of calluses.