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Olaplex No. 4 & No. 5: Strengthen, Hydrate, and Protect Your Hair

October 23, 2025

Olaplex No. 4 & No. 5 work together to repair broken bonds, restore elasticity, and prevent color fade. With bond-building technology, these products hydrate and strengthen your hair, leaving it healthier and more resilient.

Author: 
Ken Sio

Reading time: 2 minutes

Discover the science behind Olaplex's game-changing hair care! Olaplex No. 4 Bond Maintenance Shampoo cleanses your hair without stripping essential moisture, protecting your color and preventing fade. Paired with the No. 5 Bond Maintenance Conditioner, this dynamic duo delivers intense hydration, restores elasticity, and strengthens hair, leaving it smooth and manageable. Thanks to Olaplex's patented bond-building technology, these products repair broken disulfide bonds caused by bleaching, coloring, and heat styling, resulting in healthier, more resilient hair.

Why Olaplex?

  • Bond Building Technology: Repairs broken disulfide bonds for stronger, more elastic hair.
  • Gentle and Hydrating: Free from sulfates, parabens, and harsh chemicals.
  • Color-Protecting: Prevents color fade while preserving moisture.
  • Suitable for All Hair Types: Effective for any hair texture and condition.
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