In an extended bikini wax, hair is removed both outside the panty line and slightly inside the panty line. The extended wax is about half-way between a panty line wax and a Brazilian wax.
In general, waxing lasts between 3 and 6 weeks. Unlike shaving, which cuts off hair at the surface, waxing removes hair at its root. Typically, a hard wax is used for sensitive skin, such as in the bikini area. A softened wax is applied to a section of hair. After it hardens, the wax is pulled off in a strip. For best results, hair should be between 1/4 inch and 1/2 inch long before waxing.