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Hair is shinier and healthier after every wash when you reach for Olaplex’s moisturising, pH-balanced reparative No.4 formula. This colour-safe and sulfate-free shampoo repairs and maintains bonds within the hair, fights frizz and flyaways, and is proven to reduce breakage and strengthen all types of hair. No.4 leaves tresses easy to manage and lustrous.
Bis-aminopropyl diglycol dimaleate: a single molecule, free of silicones and oils, dramatically improves the hair strength, protects from within, and provides immediate results.
Parabens, phosphates, phthalates, sulfates, DEA, aldehydes, formaldehyde, oil, alcohol, nuts, gluten, animal products and testing.
Allure 2023 Award Winner
Apply and massage product throughout hair. Rinse product from hair. Follow with Olaplex No.5 Bond Maintenance Conditioner.
Formulated for daily/ every wash use.