epair, strengthen, and hydrate with every wash.
The cult-favorite Olaplex shampoo is now available in a generous 1-liter size—perfect for professionals or anyone committed to maintaining strong, healthy hair. Formulated with Olaplex’s patented Bond Building Technology, No. 4 works by relinking broken disulfide bonds in the hair, effectively repairing damage caused by chemical treatments, heat styling, and environmental stressors.
This highly nourishing and color-safe shampoo gently cleanses while delivering intense moisture and repair, leaving hair noticeably softer, shinier, and more resilient over time.
Key Benefits:
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Rebuilds and strengthens damaged hair
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Reduces frizz and breakage
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Hydrates without weighing hair down
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Safe for color-treated and chemically processed hair
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Highly concentrated for long-lasting use
Ideal for all hair types, the 1-liter bottle is a smart choice for both home and salon use, offering professional-quality care in every drop.
