What is the result of over-processing during a perm?

Over-processing during a perm leads to frizzy and damaged hair. This occurs when the hair is subjected to excessive chemical treatment, which alters the hair's natural structure and can strip it of moisture. When hair is over-processed, the cuticle, or outer layer, may become raised or damaged, resulting in a rough texture. Instead of achieving the intended curl, the hair may become brittle and lose its elasticity, leading to breakage and frizz. This is why the outcome of over-processing presents as frizz and damage rather than healthy or manageable styles.