It is not recommended to remove more than what percentage of the hair's natural texture during a perm?

When performing a perm, maintaining the integrity of the hair's natural texture is crucial for achieving a healthy and balanced curl. The recommended practice is to avoid removing more than 15% of the hair's natural texture. Thus, it's advisable to retain at least 85% of the hair's natural texture during the perming process to ensure that the hair remains manageable and retains a natural flow.

By keeping this percentage in mind, hairstylists can prevent the hair from becoming overly processed, which can lead to damage, dryness, and an unnatural appearance. Retaining a significant portion of the hair’s natural texture helps to create curls that are not only beautiful but also healthier, allowing the client to have a manageable hairstyle that maintains its integrity long after the perm is completed.