A professional-strength, bond-building clarifying shampoo that deeply cleanses without stripping. No.4C removes product buildup, excess oil, hard water minerals, heavy metals, chlorine, and pollutants that can dull and weigh hair down. At the same time, OLAPLEX Bond Building Technology™ helps maintain soft, strong, shiny, colour-vibrant hair.

Hit Reset on Dull, Buildup-Heavy Hair

Over time, styling products, hard water, pollution, excess oil, and impurities can leave hair feeling heavy, flat, and lifeless. Olaplex No.4C Bond Maintenance® Clarifying Shampoo is designed to reset your hair and scalp with a deep yet gentle cleanse.

Powered by OLAPLEX’s Broad-Spectrum Clarifying System and patented Bond Building Technology™, this concentrated formula lifts away stubborn buildup and surface impurities while respecting the hair’s moisture balance. The result is hair that feels light, clean, and refreshed with improved shine, softness, and colour clarity.

This liter-size bottle is ideal for regular blonde, color, or product-heavy clients, or anyone who wants a periodic deep cleanse that doesn’t damage or dry out the hair.

Why You’ll Love It

• Removes hair-dulling impurities, product buildup, and excess oil
• Helps clear away hard water minerals, heavy metals, chlorine, and pollutants
• Deeply cleanses without leaving hair feeling rough or stripped
• Supports stronger, healthier-feeling hair with Bond Building Technology™
• Helps restore bounce, softness and light-reflecting shine
• Enhances the vibrancy of colour-treated hair
• Suitable for all hair types, including chemically treated hair
• Colour-safe, gentle enough for weekly use

What Makes It Different

Broad-Spectrum Clarifying System – Targets multiple types of impurities in one step — from styling residue to environmental buildup and hard water deposits.

Bond Maintenance + Clarifying in One – Unlike traditional harsh clarifying shampoos, No.4C is formulated with Bis-Aminopropyl Diglycol Dimaleate to help support internal hair bonds while cleansing.

Non-Drying, Non-Stripping Formula – A blend of modern surfactants and conditioning agents delivers a rich lather that rinses clean, leaving hair refreshed but not rough.

Who This Shampoo Is Perfect For

• Hair that feels coated, heavy, or quickly gets greasy
• Scalp that feels congested from product, dry shampoo, or styling sprays
• Those living in hard-water or high-pollution areas
• Colour-treated hair that looks dull or muted
• Curly, wavy, or fine hair that loses volume due to buildup
• Anyone who uses a lot of styling products or treatments and needs a regular reset

How to Use

1. Apply to wet hair.
2. Lather thoroughly from scalp to ends, concentrating on areas with visible buildup.
3. Leave on for up to 5 minutes for a deeper clarifying effect.
4. Rinse thoroughly.
5. Follow with Olaplex No.5 Bond Maintenance® Conditioner, No.8 Bond Intense Moisture Mask, or your preferred treatment.

Use once a week or as needed in place of your regular shampoo.

Key Benefits

Removes Damaging, Hair-Dulling Impurities – Helps eliminate residue from styling products, excess oil, hard water minerals, chlorine, heavy metals, and pollutants that can affect hair health and appearance.

Deeply Cleanses Without Over-Stripping – Cleansing agents work together to deliver a thorough clean while maintaining softness and flexibility.

Improves Colour Vibrancy and Shine

Clarifying away buildup allows true tone and colour to show through, enhancing radiance and clarity.

Key Ingredient Highlights

Broad-Spectrum Clarifying System – A blend of surfactants and chelating agents that loosens and removes a wide range of pollutants and deposits from the hair surface.

Bis-Aminopropyl Diglycol Dimaleate – Olaplex’s patented bond-building molecule helps maintain and protect internal hair structure during washing.

Panthenol & Amino Acids – Support moisture retention, smoothness, and a soft feel after clarifying.

Ingredients

Water (Aqua) (Eau), Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Hydroxysultaine, Sodium Lauroyl Glutamate, Coco-Betaine, Disodium Laureth Sulfosuccinate, Acrylates Copolymer, Cocamidopropyl Betaine, Cocamidopropylamine Oxide, Sodium Methyl Oleoyl Taurate, Decyl Glucoside, Bis-Aminopropyl Diglycol Dimaleate, Sodium Lauryl Sulfoacetate, Coco-Glucoside, Lauryl Glucoside, Panthenol, Trisodium Ethylenediamine Disuccinate, Ethylhexylglycerin, Polyquaternium-11, Sodium PCA, Pentasodium Triphosphate, Sodium Lactate, Arginine, Aspartic Acid, PCA, Citric Acid, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Phenoxyethanol, Chlorphenesin, Sodium Benzoate, Benzoic Acid, Fragrance (Parfum), Citral, Hexyl Cinnamal, Limonene.