Olaplex Nº.4 Bond Maintenance Shampoo 100 mL — Color-Safe Strengthening, Hydrating & Detangling

Olaplex Nº.4 Bond Maintenance Shampoo is a concentrated, color-safe cleanser that helps reduce breakage while hydrating, smoothing, and detangling all hair types.

This gentle yet effective shampoo was formulated to clean without stripping, restoring manageability and shine as it preserves the hair’s internal bonds. Lightweight coconut-oil-derived surfactants produce a rich lather that lifts dirt and buildup while leaving hair and scalp feeling moisturized. Best used as part of an Olaplex routine, Nº.4 works on coily, curly, straight, and wavy textures and is safe for color-treated hair.

How does this shampoo reduce breakage without weighing hair down?

Nº.4 uses bond-supporting technology alongside a mild cleansing system to strengthen weakened areas while removing impurities. The formula focuses on preserving hair integrity so strands move more smoothly through styling and brushing, which limits mechanical breakage. It avoids harsh sulfates that can strip moisture and weaken fibers.

• Concentrated formulation targets bond maintenance and strength.
• Coconut-derived surfactants create abundant lather without heavy residues.
• Color-safe ingredients maintain dye integrity and vibrancy.
• Compatible with daily or on-demand cleansing routines.

What tangible results can I expect after regular use?

With consistent use—especially within the Olaplex system—hair appears smoother, detangles more easily, and feels more conditioned. Clinical testing in system use showed noticeable improvements in smoothness and reduced breakage, contributing to healthier-looking hair over time. Individual results depend on hair condition and frequency of use.

• Visibly smoother texture and improved shine.
• Enhanced detangling for quicker styling sessions.
• Reduction in breakage when used with Nº.3 and Nº.5 as directed.
• Hydrated scalp and reduced dryness after rinse.

How should I use Nº.4 to get the best outcome?

Apply to wet hair, massage into the scalp and along lengths to activate the lather, then rinse thoroughly. For optimal benefit, follow with Olaplex Nº.5 Bond Maintenance Conditioner or layer with Nº.3 Hair Perfector when targeting intensive repair. Use frequency depends on lifestyle—daily for oily scalps or every few days for drier hair.

• Wet hair completely, apply a small, concentrated amount, then lather.
• Rinse and follow with a conditioner to seal and smooth strands.
• Combine with Nº.3 and Nº.5 for clinically shown system results.
• Adjust frequency to hair type: daily for oilier roots, less often for dry textures.

Who is this for: Olaplex Nº.4 Bond Maintenance Shampoo is designed for anyone seeking a non-stripping, bond-supporting shampoo—ideal for color-treated, chemically processed, heat-styled, or naturally fragile hair. It suits every texture from tight coils to fine straight strands and is a practical choice for people who want cleaner, more manageable, and stronger-feeling hair without sacrificing color or moisture. Choose the 100 mL size to trial the formula, travel with it, or integrate into a targeted repair regimen.

Ingredients

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 Alketh-7, Laureth-9, Glycerin, Trideceth-12, C12-13 Alketh-23, C12-13 Alketh-3, Panthenol, Acetic Acid, Hydrolyzed Vegetable Protein PG-Propyl Silanetriol, Pentasodium Triphosphate, Glyoxal, Sodium Hydroxide, Helianthus Annuus (Sunflower) Seed Oil, Disodium EDTA, Tocopherol, Prunus Armeniaca (Apricot) Kernel Oil, Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate, Pseudozyma Epicola/Camellia Sinensis Seed Oil Ferment Extract Filtrate, Quaternium-95, Propanediol, Helianthus Annuus (Sunflower) Seed Extract, PEG-8, Euterpe Oleracea Fruit Extract, Punica Granatum Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Musa Sapientum (Banana) Fruit Extract, Origanum Vulgare Leaf Extract, Morinda Citrifolia Fruit Extract, Arctium Lappa Root Extract, PEG-8/SMDI Copolymer, Sodium Hyaluronate, Palmitoyl Myristyl Serinate, Sodium Polyacrylate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Biotin, Phenoxyethanol, Chlorphenesin, Benzoic Acid, Potassium Sorbate, Sodium Benzoate, Fragrance (Parfum), Hexyl Cinnamal, Limonene, Citral