Hair removal as a form of payment for challenges or dares lost involving the removal of all body hair. Inmates have their head shaved upon entry at certain prisons. Depilation is the removal of the part of the hair above the surface of the skin. The most common form of depilation is shaving or trimming. Another option is the use of chemical depilatories, which work by breaking the disulfide bonds that link the protein chains that give hair its strength. Epilation is the removal of the entire hair, including the part below the skin. Methods include waxing, sugaring, epilation devices, lasers, threading,
Hair removal introduced by Ziryab in Al-Andalus. Muslims are legislated by the Sunnah to remove under arm hair and pubic hair on a weekly basis; not doing after a 40-day period is considered sinful in the Sharia. Ancient Egyptian priests also shaved or depilated all over daily, so as to present a "pure" body before the images of the gods. The body hair of surgical patients may be removed before surgery. In the past this may have been achieved by shaving, but that is now considered counter-productive, so clippers or chemical depilatories may be used instead. The shaving of hair has sometimes