Which type of label indicates that a product is safe and effective for use?

An efficacy label is specifically designed to communicate that a product has been tested and proven to be safe and effective for its intended use. This type of label provides assurance to consumers that they can trust the product to perform as advertised, based on scientific evidence or regulatory standards. It typically includes information about the product’s effectiveness in meeting certain standards, such as killing germs or providing a specific benefit.

In contrast, warning labels focus on potential hazards associated with improper use or dangers inherent to the product, ingredient labels detail the specific components of the product to inform consumers about what they are using, and usage labels provide instructions on how to properly utilize the product. While these other labels serve important purposes, they do not specifically indicate safety and effectiveness in the same clear and definitive manner as an efficacy label does.