A more thorough explanation:

Corrective advertising is a type of advertisement that informs consumers about a previous advertisement that contained false or misleading information. It provides consumers with corrected information to prevent them from being misled.

For example, if a company advertised that their product could cure a disease, but it was found to be false, the Federal Trade Commission may require the company to run a corrective advertisement to inform consumers that the previous claim was false.

Another example is if a company advertised a product as being environmentally friendly, but it was found to be harmful to the environment. The company may be required to run a corrective advertisement to inform consumers of the true impact of the product on the environment.

Corrective advertising is important because it helps to protect consumers from false or misleading information and promotes honesty and transparency in advertising.