Final answer:
The consent form is the customary written agreement used in cosmetology for applying treatments.
Step-by-step explanation:
The customary written agreement between the cosmetologist and the client for applying pre- or postoperative treatment following the medical provider's directions or for applying a simple routine treatment is the consent form. This form ensures that the client understands the risks, benefits, and expectations of the treatment and gives their consent to proceed. It protects both the cosmetologist and the client by establishing clear communication and mutual agreement.
Learn more about Cosmetology agreements