Olaplex No.4 Bond Maintenance Strengthening & Hydrating Hair Repair Shampoo 250ml

Olaplex No.4 Bond Maintenance® Strengthening & Hydrating Hair Repair Shampoo

A highly concentrated shampoo for medium to coarse hair that targets everyday damage to strengthen, reinforce, nourish, and boost shine — all in one wash. Clinically tested and dermatologist approved, Olaplex No.4 is the go-to shampoo for anyone serious about hair health.

Key Benefits

• Cares for everyday damage and defends against future breakage
• Strengthens and reinforces bonds for more resilient hair
• Replenishes hydration, enhances softness and shine
• Smooths hair and reduces frizz and flyaways

Suitable For

• Hair Texture: Straight, Wavy, Curly, and Coily
• Hair Type: Fine, Medium, and Thick
• Hair Concerns: Color-treated hair, Damage, Split Ends, Breakage, and Frizz

Highlighted Ingredients

• Bis-Aminopropyl Diglycol Dimaleate: Olaplex's patented and proven technology to restore broken bonds for stronger, healthier hair.
• Gentle Coconut Oil-Derived Surfactants: Deliver an easy, abundant lather that leaves the scalp and hair feeling clean and hydrated.

Clean Formula

Free of parabens, formaldehydes, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates (SLS & SLES), triclocarban, and triclosan. Contains less than 1% synthetic fragrance. Cruelty-free.

Fragrance

Olaplex's signature scent with uplifting notes of grapefruit, sugared mint, and sage.

Clinical Results

After just 1 wash (when used as a system with No.5 Bond Maintenance Conditioner, sold separately):

• Repairs everyday damage and strengthens hair at a molecular level
• Defends against future breakage and reduces split ends, frizz, and flyaways
• 73% increase in hydration for soft, shiny, and more manageable hair

How to Use

Apply to wet hair, lather, and rinse thoroughly. Follow with Olaplex No.5 Bond Maintenance Conditioner for best results. Suitable for color-treated and chemically processed hair.