This professional duo features one Nº.1 Bond Multiplier and two Nº.2 Bond Perfector in 18oz bottles, essential for protecting and repairing hair during and after chemical treatments. Nº.1 Bond Multiplier is OLAPLEX’s most concentrated bond-building formula, added to color, lighteners, or perm solutions to strengthen and safeguard disulfide bonds. Follow with Nº.2 Bond Perfector, which deeply penetrates the hair to relink broken bonds and prevent further damage. Together, they deliver a complete system for healthier, stronger, and more resilient hair.
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