The Nº.4 Bond Maintenance Shampoo, infused with patented OLAPLEX Bond Building Technology, is a highly concentrated reparative shampoo that hydrates and nourishes hair. This shampoo protects and repairs damaged hair, split ends and frizz by re-linking broken bonds.

•  Repairs and maintains bonds within the hair
•  Eliminates frizz and flyaways
•  Reduces breakage
• Nourishes, moisturizes and smoothens your hair, leaving it soft, manageable, shiny and visibly healthier.
• Helps prevent breakage and split ends.
• Color-safe and sulfates free; it lathers easily and is gentle enough for everyday use.