A highly concentrated strengthening shampoo for medium-coarse hair that repairs everyday damage to reinforce hair, nourish, and boost shine in 1 wash.

Olaplex is a leader in professional haircare, trusted worldwide for its groundbreaking bond-building technology. The No. 4 Bond Maintenance Shampoo is a cult-favorite formula that repairs, strengthens, and softens hair with every wash.

• Repairs broken hair bonds caused by heat, color, and daily stress

• Strengthens strands to reduce breakage, split ends, and frizz

• Leaves hair noticeably shinier, softer, and more manageable

• Color-safe to protect highlights, balayage, and dyed hair

• Clean formula free from sulfates, parabens, and harsh chemicals

• Suitable for all hair types, including curly, straight, thick, fine, and damaged hair.