Description
Olaplex No.4 Shampoo 1000ml is a professional bond-maintenance cleanser designed to gently wash, strengthen and nourish hair affected by everyday damage, heat styling and chemical processing. Powered by patented OLAPLEX Bond Building Technology, this highly concentrated formula helps improve hair strength, softness and manageability while supporting a smoother, healthier-looking finish.
Part of the OLAPLEX bond-care collection, Nº.4 Bond Maintenance Shampoo combines effective cleansing with conditioning ingredients to help maintain stronger-feeling hair. Its sulphate-free formulation is suitable for colour-treated hair and can be incorporated into a regular hair care routine.
The generous 1000ml bottle is particularly convenient for customers who use OLAPLEX products consistently or prefer a larger professional-size shampoo.
Why Choose Olaplex No.4 Shampoo?
Hair can become weakened through repeated colouring, bleaching, heated styling and everyday mechanical stress. These factors may damage the internal bonds responsible for maintaining the hair’s strength and structure.
Olaplex No.4 Shampoo is developed to address the appearance and effects of damage while providing thorough yet gentle cleansing.
The formula features OLAPLEX’s patented bond-building ingredient, Bis-Aminopropyl Diglycol Dimaleate.
This ingredient forms part of the manufacturer’s technology designed to support damaged hair bonds and improve resilience.
The shampoo also contains conditioning and moisture-supporting ingredients that help strands feel smoother after washing.
Unlike a clarifying shampoo intended primarily for intensive removal of stubborn build-up, Nº.4 focuses on everyday cleansing, bond care and hydration.
Its concentrated formula means only a small amount is generally required for each application.
Key Benefits of Olaplex No.4 Shampoo
1. Supports Hair Bond Repair
The shampoo features OLAPLEX Bond Building Technology, developed to support the integrity of hair affected by chemical and mechanical damage.
It helps improve the appearance and feel of weakened strands.
2. Helps Reduce Breakage
The bond-focused formulation supports stronger-feeling hair and a routine designed to minimise further damage.
Hair that is better conditioned can also be easier to handle during careful brushing and styling.
3. Deeply Nourishes Hair
The shampoo contains moisture-supporting ingredients that help maintain softness and improve the conditioned feel of dry strands.
4. Enhances Smoothness and Shine
The formula helps hair feel smoother while improving its natural-looking shine.
This can be particularly useful for hair that appears dull or rough.
5. Gentle Sulphate-Free Cleansing
The shampoo is formulated without traditional sulphate-based cleansing agents such as Sodium Lauryl Sulphate and Sodium Laureth Sulphate.
Its concentrated cleansing system removes everyday impurities without being intended to strip hair of essential moisture.
6. Colour-Safe Formula
OLAPLEX identifies Nº.4 as suitable for colour-treated and chemically processed hair.
It provides a practical cleansing option for customers maintaining professional colour treatments.
7. Convenient Professional Size
The 1000ml format is ideal for customers who regularly use the shampoo and prefer purchasing a larger bottle.
How to Use Olaplex No.4 Shampoo
For the best results, follow the manufacturer’s recommended application method.
Step 1 – Wet Your Hair
Thoroughly wet the hair and scalp with lukewarm water.
Make sure the roots and lengths are adequately saturated before applying the shampoo.
Step 2 – Dispense Shampoo
Apply a small amount of product into your palms using the pump dispenser.
Because the formula is concentrated, begin with a modest quantity and adjust according to hair length and density.
Step 3 – Emulsify
Rub the shampoo between your hands before applying it to the hair.
This helps distribute the product evenly.
Step 4 – Massage Gently
Apply to wet hair, concentrating initially on the scalp.
Massage using your fingertips to develop a rich lather.
Step 5 – Cleanse the Lengths
Gently distribute the lather through the lengths and ends.
Avoid unnecessary friction, particularly if the hair is damaged or fragile.
Step 6 – Rinse Thoroughly
Rinse with clean water until the shampoo has been completely removed.
Step 7 – Follow with Conditioner
OLAPLEX recommends following with Nº.5 Bond Maintenance Conditioner or another suitable conditioning treatment.
For customers who prefer a smaller bottle, Beauty Fusion also stocks OLAPLEX No.4 Bond Maintenance Shampoo 250ml.
Who Is Olaplex No.4 Shampoo Best For?
This shampoo is suitable for customers looking to support the strength and condition of their hair.
It may be particularly beneficial for:
- People with damaged or weakened hair.
- Customers who regularly colour or bleach their hair.
- Those experiencing styling-related breakage.
- People who frequently use heated styling equipment.
- Customers with dry or rough-feeling strands.
- Those seeking a sulphate-free shampoo.
- People maintaining chemically processed hair.
- Customers wanting softer, shinier-looking hair.
- Individuals using a complete OLAPLEX bond-care routine.
OLAPLEX markets the range for different hair textures, including straight, wavy, curly and coily hair.
The manufacturer’s latest version places particular emphasis on medium-to-coarse hair, while the classic packaging is described more broadly as suitable for all hair types.
Individual results depend on hair condition, porosity, styling habits and the other products used.
Ingredients in Olaplex No.4 Shampoo
The official OLAPLEX UK website publishes ingredient information for Nº.4 Bond Maintenance Shampoo.
The following ingredients are associated with the classic formulation. The actual bottle’s ingredient declaration should always take priority because OLAPLEX has introduced updated packaging and product formulations.
Bis-Aminopropyl Diglycol Dimaleate
This is OLAPLEX’s signature patented bond-building ingredient.
It forms part of the technology designed to support the integrity of damaged hair bonds.
Panthenol
Panthenol, also known as Pro-Vitamin B5, contributes to moisture support and hair conditioning.
It helps improve the feel of dry strands.
Glycerin
Glycerin is a humectant used in cosmetic formulations to help support moisture retention.
Hydrolysed Vegetable Protein
Hydrolysed Vegetable Protein PG-Propyl Silanetriol appears in the published formula.
It contributes to the product’s strengthening and conditioning characteristics.
Sunflower Seed Oil
Helianthus Annuus Seed Oil is included among the formula’s botanical conditioning ingredients.
Apricot Kernel Oil
Prunus Armeniaca Kernel Oil contributes emollient properties that support softness.
Vitamin E
Tocopherol is a form of Vitamin E included in the published formulation.
Conditioning Silicones
The classic ingredient list includes Amodimethicone and related silicone ingredients.
These contribute to smoothness, slip and improved manageability.
Important: The shampoo is not silicone-free.
Cleansing Ingredients
The published formulation contains Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Hydroxysultaine, Potassium Cocoyl Glycinate and Sodium Lauroyl Sarcosinate.
These ingredients contribute to cleansing and lather formation.
For the manufacturer’s current product information, visit the official OLAPLEX UK Nº.4 Bond Maintenance Strengthening Shampoo page.
This page includes a 1000ml size option and updated product details.
For an exact UK 1000ml retail listing, see OLAPLEX No.4 Bond Maintenance Shampoo 1000ml at Sally Beauty UK.
Ingredient note: Always check the ingredient list on your actual bottle, particularly if you have known sensitivities. Do not assume every version uses an identical ingredient list.
Size and Packaging
OLAPLEX Nº.4 Bond Maintenance Shampoo is pictured in a large cream-coloured bottle with a white pump dispenser.
Product specifications:
- Brand: OLAPLEX
- Product: Nº.4 Bond Maintenance Shampoo
- Size: 1000ml / 33.81 fl oz
- Product type: Bond-maintenance and strengthening shampoo
- Hair suitability: All hair types, particularly damaged hair
- Formula: Sulphate-free
- Colour-safe: Yes
- Featured technology: OLAPLEX Bond Building Technology
- Bottle colour: Cream / warm ivory
- Pump colour: White / ivory
- Label colour: White with black lettering
- Application: Rinse-out shampoo
- SKU: Not verified from the photograph
The classic packaging features the prominent OLAPLEX logo, Nº.4 identification and Bond Maintenance Shampoo lettering.
The 1000ml bottle includes a pump dispenser for convenient use during regular washing.
Extra Tips for Best Results
Use lukewarm water rather than excessively hot water when cleansing damaged hair.
Start with a small amount because the shampoo is highly concentrated.
Massage the scalp gently instead of scratching with your fingernails.
Follow with a moisturising conditioner or mask suited to your hair’s condition.
For additional bond-focused care, OLAPLEX offers complementary products within its professional hair care collection.
When detangling, begin at the ends and work gradually towards the roots.
Avoid aggressive towel drying, especially when hair is wet and more vulnerable to mechanical stress.
Apply an appropriate heat protectant before using straighteners, blow-dryers or curling tools.
Customers maintaining professionally coloured hair should follow the aftercare recommendations provided by their stylist.
For more cleansing and conditioning options, explore the Beauty Fusion Shampoo collection.
Final Thoughts on Olaplex No.4 Shampoo
Olaplex No.4 Shampoo 1000ml offers a professional cleansing solution for customers wanting to maintain stronger-feeling, softer and more manageable hair.
Its patented Bond Building Technology and conditioning ingredients help support hair affected by everyday damage, colouring and heat styling.
The sulphate-free, colour-safe formula combines effective cleansing with moisture-focused care.
The generous 1000ml size makes it particularly convenient for customers who regularly follow an OLAPLEX hair care routine.
Whether your hair is dry, damaged or chemically treated, this shampoo provides a practical first step towards maintaining a smoother, healthier-looking appearance.
Discover OLAPLEX Nº.4 Bond Maintenance Shampoo and complementary hair care essentials at Beauty Fusion.

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