Combing hair after chemical coloring or straightening processes often brings anxiety when strands feel stretchy like rubber bands and break in the middle. Conventional, heavy silicone-based hair masks typically only coat the outer surface of the hair shaft temporarily, without repairing the structural damage occurring within the cortex.
The bond-building technology pioneered by Olaplex works to reconstruct broken hair disulfide bonds at a molecular level using the patented active ingredient Bis-Aminopropyl Diglycol Dimaleate. This scientific approach restores the tensile strength of keratin fibers, replenishes natural elasticity, and prevents permanent damage from chemical processes or extreme heat.
The Three Chemical Bonds of Hair Structure and Their Damage Causes
The strength and flexibility of human hair strands are supported by three primary types of chemical bonds within the keratin cortex: hydrogen bonds, salt bonds, and disulfide bonds. Hydrogen and salt bonds are temporary and easily altered by exposure to water or heat from styling tools.
Conversely, disulfide bonds are the strongest covalent bonds, linking sulfur atoms from two cysteine amino acid molecules. These covalent bonds dictate the architectural integrity and resilience of hair strands against physical stress.
When hair undergoes aggressive chemical processes like bleaching, peroxide breaks down disulfide bonds into cysteic acid, weakening the cortex. If these sulfur bonds are not reconnected promptly, the hair shaft will experience high porosity, become brittle, and develop permanent split ends.
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