Luxury Beauty

OLAPLEX N°.4 Bond Maintenance Shampoo

N°.4 is the everyday half of the Olaplex routine: a color-safe shampoo meant to keep up the work your treatments start. On its own it's a nice gentle wash; in the system it makes more sense.

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Key features

• It's color-safe, which matters if you're protecting an expensive dye job
• A gentle, coconut-derived cleanse aims to clean without leaving hair stripped
• It's concentrated, so you don't need much per wash
• The brand's breakage results are measured as part of the N°.3, 4 and 5 system
• It's built to keep damaged hair manageable between salon visits

Best for

Anyone with bleached, colored or breakage-prone hair who already uses or plans to use Olaplex treatments.

Things to consider

• Most of its headline results assume you're using the full system
• It's a premium price for a shampoo, which adds up with daily washing
• If your hair isn't damaged, a gentler drugstore shampoo may do the same job

Verdict

Worth it if you're committed to the Olaplex routine. If you only buy one Olaplex product, make it the treatment, not the shampoo.

Consider instead

Olaplex N°.3PLUS Hair Repair Pre-Shampoo Treatment — The N°.3 treatment is the core repair step of the routine.