What distinguishes a permanent wave from a traditional perm?

A permanent wave is distinguished from a traditional perm by its use of both heat and chemicals to create and structure curls. This method allows for a more versatile range of styles and a more uniform curl creation. The combination of heat with chemical solutions effectively alters the hair's internal bonds, resulting in long-lasting and defined curls.

While some permanent wave techniques may utilize only chemicals, the hallmark of this modern technique is the enhancement that heat provides, which results in a more stable and resilient curl pattern. This not only improves the overall texture but also allows for different levels of curl tightness depending on the client's desired outcome.

The other options do not capture the key differentiation between the two methods. The perception that a traditional perm is less durable or quicker to apply does not specifically address the significant technological advancement represented by the permanent wave process. Understanding this distinction is essential for professionals in the cosmetology field, as it can influence treatment choices and client satisfaction.