ColorPlex used the Disulfide bond theory, which is the most important structure inside human hair, it forms the cross-linkage in keratin fibers, contributing physical and mechanical properties as well as structure stability. When hair is under chemical treatment like bleaching and coloring,the damage occurs because of Disulfide bond broken. The key ingredient of ColorPlex Bis-aminopropyl dimaleate and sulfate polysaccharide build strong connection between disulfide bond. Before and during the chemical process, this connection provide strong buffer action avoid disulfide bond broken. After process, these ingredient rebuilt broken disulfide bond and cross linking them together.