Olaplex Nr.4 Bond Maintenance

Bond-Repairing Sulfate-Free Shampoo with Olaplex Bond Building Technology

Nº.4 Bond Maintenance Shampoo from Olaplex is a sulfate-free cleansing step built around Olaplex's patented bond-building ingredient, Bis-Aminopropyl Diglycol Dimaleate. The formula cleanses without SLS/SLES sulfates, parabens or phthalates, while reinforcing the internal bonds that everyday styling, heat and chemical services weaken. Panthenol (provitamin B5), Glycerin and a botanical blend of Avocado, Grape Seed, Crambe Abyssinica and Camellia Sinensis seed oils support softness and shine through the wash. The 250ml bottle is the standard at-home format of the Nº.4 system.

Why Choose It?

• Reinforces bonds inside the hair shaft with Olaplex's patented Bis-Aminopropyl Diglycol Dimaleate
• Sulfate-free cleansing — free of SLS and SLES, parabens, phthalates and MIC/MIT
• Clinically proven to boost shine and reduce split ends and frizz
• Replenishes hydration via Panthenol, Glycerin and a multi-oil botanical layer without weighing hair down
• Highly concentrated — a small dose lathers thoroughly in a single wash

Best For

Hair weakened by heat styling, colour, lightening or chemical services that needs sulfate-free maintenance cleansing between bond-repair treatments. The 250ml bottle is the standard daily-use format of the Nº.4 Bond Maintenance system.

For the full bond-care routine, pair with Olaplex Nº.5 Bond Maintenance Conditioner after the wash, and use Olaplex Nº.3 Hair Perfector as a weekly pre-wash bond-repair step.

• Wet hair thoroughly with warm water.
• Apply a small amount of Nº.4 and lather gently from roots through to the ends.
• Massage the scalp to lift away buildup, then work the lather through the lengths.
• Rinse thoroughly with warm water.
• Follow with Nº.5 Bond Maintenance Conditioner before styling.

Tips

• The formula is highly concentrated — start with a coin-sized dose and only add more if needed.
• On heavy product buildup, lather twice on the first wash before conditioning.
• Avoid contact with eyes; if the product enters the eyes, rinse with water.