Which of the following is NOT a benefit of using a low/no thio perm?

The choice that is correct in identifying what is NOT a benefit of using a low/no thio perm is based on the understanding of the chemical processes involved in perming hair.

Low/no thio perms are designed to be less harsh compared to traditional perms, which is why they are often gentler on the hair. They typically produce less odor due to the absence or significant reduction of harsh chemicals commonly found in traditional perm solutions. These factors contribute to a better overall experience for the client.

However, regarding the dilation of the cuticle, low/no thio perms do not promote more dilation of the hair cuticle. In fact, these types of perms aim for a gentler treatment, implying a milder effect on the hair’s structure, which includes less aggressive cuticle lifting. This is important because excessive dilation of the cuticle could lead to damage and weakened hair.

Therefore, while the other options highlight the benefits of low/no thio perms, the assertion that they cause "more dilation of cuticle" does not align with the gentle, less damaging approach that these perms provide, making it the correct identification of a non-benefit.