Olaplex No. 4 Bond Maintenance Shampoo 33.8oz

Salon-Size Bond Repair Shampoo

The full liter of Olaplex's bond-repairing shampoo—because once you experience what real hair repair feels like, you won't want to run out. No.4 cleans while rebuilding broken disulfide bonds with every wash.

At this size, you're set for months of stronger, healthier hair. Your colour stays vibrant longer, breakage decreases dramatically, and your hair builds resilience over time.

Best For: Olaplex converts who use it daily. Families sharing the good stuff. Anyone serious about hair health.

How To Use:

Massage into wet hair, lather, and rinse. Follow with No.5 Conditioner.