What is the purpose of using styptic powder during a nail service?

The purpose of using styptic powder during a nail service is to stop bleeding. This powder contains astringent properties that help constrict blood vessels and promote clotting when there is a minor cut or nick to the skin during the manicure or pedicure process. Styptic powder is a valuable tool in the nail technician's kit, as it allows for quick and effective control of bleeding, ensuring the client remains comfortable and the service can continue without significant interruption.

The other options, while relevant to various aspects of nail care, do not align with the specific function of styptic powder. For instance, enhancing nail polish adherence pertains to preparing the nail surface for polish application, while softening cuticles and adding moisture are related to improving the condition and appearance of the skin and nails, rather than addressing bleeding.