What occurs as a result of over-processing hair during coloring?

Over-processing hair during coloring leads to dry and damaged hair due to the chemical reactions involved in the coloring process. Hair is made up of a protein structure called keratin, which can become weakened when subjected to harsh chemicals. These chemicals, typically found in hair dyes and lighteners, can strip the hair of its natural moisture and oils, resulting in a brittle texture, increased dryness, and potential breakage.

When hair is over-processed, the cuticle—the outer protective layer—is compromised. This can lead to the inner layers of hair becoming exposed to environmental factors, causing further damage. As a result, the hair may lose its elasticity and shine, and may ultimately become more prone to frizz and split ends. Therefore, properly managing the processing time and the strength of the chemicals used is crucial for maintaining hair health during coloring.