What is a characteristic of the spiral perm technique?

The spiral perm technique is designed to create tight, defined curls by wrapping hair around a vertical rod in a way that allows the hair to spiral down the rod. This method results in a curl pattern that is well-defined and has a bouncy, springy quality. The curls formed from a spiral perm tend to be tighter compared to other perm techniques, making it ideal for those seeking a more structured and pronounced curl.

In contrast, other techniques may focus on different outcomes. Some methods might produce waves or looser curls, while others may be more suited for adding volume without creating tight curls. The technique's specific curl formulation and wrapping process are what set it apart, ensuring that the curls maintain their shape and definition, which is a hallmark of the spiral perm style.