N°4 Shampoo repairs and protects hair from everyday stresses — including damaged hair, split ends, and frizz — by re-linking broken bonds. Leaves hair easier to manage, shinier and healthier with each use.
N°4 is color-safe and proven to reduce breakage and strengthen all types of hair.
PH Balance: 6-6.5
*Source: The NPD Group/ U.S. Prestige Beauty Total Measured Market, Hair Sales, Annual 2021
HAIR TYPE
✓ All hair types and textures.
RESULTS
✓ Protects and repairs damaged hair, split ends, and frizz by re-linking broken bonds.
✓ It will strengthen and leave your hair stronger than ever.
✓ Cruelty Free
✓ Gluten Free
✓ Nut Free
✓ Paraben Free
✓ PH Balanced
✓ Phosphate Free
✓ Phthalates Free
✓ Vegan
✓ Sulfate-Free
✓ Color-safe
INGREDIENTS
Free of DEA, Aldehydes and Formaldehyde.
Water (Aqua/Eau), Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Hydroxysultaine, Potassium Cocoyl Glycinate, Disodium Cocoyl Glutamate, Sodium Lauroyl Sarcosinate, Potassium Cocoate, Decyl Glucoside, Glycereth-26, Bis-Aminopropyl Diglycol Dimaleate, Cocamidopropylamine Oxide, Disodium Laureth Sulfosuccinate, Glycol Distearate, Sodium Cocoyl Glutamate, Methyl Gluceth-20, Acrylates Copolymer, PEG-120 Methyl Glucose Dioleate, Amodimethicone, Citric Acid, Sodium Lauryl Sulfoacetate, Polyquaternium-10, Ethylhexylglycerin, DivinylDimethicone/Dimethicone Copolymer, Polyquaternium-11, Trisodium Ethylenediamine Disuccinate, Guar Hydroxypropyltrimonium Chloride, C11-15 Pareth-7, Laureth-9, Glycerin, Trideceth-12, C12-13 Pareth-23, C12-13 Pareth-3, Hydrolyzed Vegetable Protein, PG-Propyl Silanetriol, Panthenol, Acetic Acid, Tetrasodium EDTA, Pentasodium Triphosphate, Sodium Hydroxide, Disodium EDTA, Helianthus Annus (Sunflower) Seed Oil, Tocopherol, Prunus Armeniaca (Apricot) Kernel Oil, Pseudozyma Epicola/Camellia Sinensis Seed Oil Ferment Extract Filtrate, Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate, Quaternium-95, Propanediol, Helianthus Annus (Sunflower) Seed Extract, PEG-8, Euterpe Oleracea Fruit Extract, Punica Granatum Extract, Rosemarinus Officinalis (Rosemary) Leaf Extract, Musa Sapientum (Banana) Fruit Extract, Origanum Vulgare Lear Extract, Morinda Citrifolia Fruit Extract, Articum Lappa Root Extract, PEG-8/SMDI Copolymer, Sodium Hyaluronate, Palmitoyl Myristyl Serinate, Sodium Polyacrylate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Biotin, Benzoic Acid, Phenoxyethanol, Chlorphenesin, Potassium Sorbate, Sodium Benzoate, Fragrance(Parfum), Citral, Hexyl Cinnamal, Limonene
APPLICATION
Apply and massage product throughout hair.
Thoroughly rinse product from hair.
Follow with N°5 Bond Maintenance Conditioner (sold separately).
Concentrate on roots.
Formulated for daily or every wash use.
In case of contact with eyes, rinse them immediately and thoroughly.
FAQS
CAN I USE THIS ON KERATIN OR COLOUR-TREATED HAIR?
Yes, each OLAPLEX product is free of sulfates, phthalates, DEA, aldehydes, formaldehyde, gluten, parabens and safe for all hair!
CAN I USE THIS SHAMPOO EVERY DAY?
Yes, the N°.4 shampoo and N°.5 conditioner are both formulated for daily/ every wash use!
REPAIR HAIR DISULFIDE BONDS WITH PROVEN TECHNOLOGY
Learn about the OLAPLEX patented system to noticeably repair extremely damaged hair.
WHAT ARE HAIR DISULFIDE BONDS?
OLAPLEX hair contains millions of disulfide bonds.
These disulfide bonds give hair its structure, strength and stability.
When disulfide bonds are broken, it results in damage.
OLAPLEX restores damaged and compromised hair by repairing from the inside out with our patented single ingredient, Bis-Aminopropyl Diglycol Dimaleate.
Once all the hair bonds are intact and in alignment, you have healthy, beautiful, shiny, touchable hair.
THE BOND BUILDER
OLAPLEX works to repair broken hair bonds.
Our patented OLAPLEX Bond Building technology works on a molecular level.
Bis-Aminopropyl Diglycol Dimaleate, a single molecule, dramatically improves the hair strength, protects from within, and provides immediate results for all hair types.
Want to learn more?
How It Works
A single molecule, free of silicones and oils, dramatically improves the hair strength, protects from within, and provides immediate results.
LEARN MORE
The Science of Hair Damage
OLAPLEX patented bond building technology is included in every one of our products. Learn how it repairs all hair types, from the inside out.
SUSTAINABILITY
Healthier hair, healthier planet.
Olaplex is committed to developing products that deliver dramatic results while respecting environmental and human health so you never have to choose between good hair days, good health, and doing good for the planet.
To help reduce our carbon footprint, we limit the use of secondary packaging for the majority of our products.