Olaplex No. 4 Bond Maintenance Shampoo is a highly concentrated, color-safe reparative shampoo designed to strengthen and hydrate all hair types. This professional-grade formula reduces breakage by 49% while delivering 90% smoother, better detangling, and more conditioned hair when used as part of the Olaplex system. The richly lathering, coconut oil-derived surfactant blend gently yet thoroughly cleanses without stripping moisture, leaving hair and scalp feeling hydrated and nourished.

Formulated with Olaplex's patented Bis-Aminopropyl Diglycol Dimaleate bond-building technology, this shampoo repairs and maintains disulfide bonds in the hair structure, resulting in stronger, healthier hair with every wash. The concentrated formula means a small amount goes a long way, making this jumbo size excellent value. Suitable for all hair types including straight, wavy, curly, and coily textures, as well as chemically treated, colored, and damaged hair.

Free of sulfates, phthalates, parabens, and MIC/MIT. Vegan and cruelty-free. Key ingredients include gentle cleansing agents, bond-building actives, hydrolyzed vegetable protein for strength, panthenol for moisture retention, sunflower seed oil and apricot kernel oil for nourishment, and biotin for hair health. This product has a 4.8 out of 5 star rating from verified purchasers who praise its ability to transform hair texture, reduce fallout, and deliver salon-quality results at home.