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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
73% smoother, easier detangling, more conditioned
49% reduction in breakage
90% smoother, more conditioned easier detangling*
*When used as a system of No.3, No.4, No.5.
When paired with OLAPLEX No. 5 Bond Maintenance Conditioner this every-wash routine produces softer, shinier, and healthier-looking hair with each use, reduces damage, split ends, frizz, and flyaways. This system impoves manageability and softness, provides optimum conditioning.
OLAPLEX products are thoroughly tested in accordance with industry standards in-house and by independent third-party laboratories for safety and efficacy.
Apply and massage product throughout hair.
Rinse product from hair.
Follow with Olaplex No. 5 Bond Maintenance Conditioner (sold separately).
Formulated for daily/ every wash use.
Pro Tip: A little goes a long way! Start with a quarter size squeeze and work your way up if needed.
V-050932
"This shampoo is amazing—a little goes a long way, and it cleans my hair thoroughly. Shampooing twice keeps my hair cleaner between washes."
Jenn, Support Centre