What is the purpose of using firm, even tension in acid perm wrapping?

Using firm, even tension in acid perm wrapping is crucial for ensuring consistent curl formation. When the hair is wrapped with the right amount of tension, it allows the perm solution to uniformly penetrate the hair shaft. This means that each section of hair receives the same treatment, leading to well-defined, uniform curls. Consistency in tension helps in controlling the shape and tightness of the curl, which directly affects the final outcome of the perm.

Secure and even wrapping allows for a balanced distribution of the perm solution and heat, facilitating the chemical reaction needed to alter the hair's structure. This results in curls that are not only aesthetically pleasing but also long-lasting. If tension is uneven or too loose, it can lead to unpredictable results, such as uneven curls or frizz. Therefore, the main goal of applying firm, even tension is to achieve reliable and uniform curls throughout the hair.