OLAPLEX Bond Maintenance Clarifying Shampoo Nº4C 1L is a deep cleansing shampoo. In this way, this shampoo removes buildup from the hair whether excess oil, hard water minerals, chlorine, heavy metals, pollutants, or product buildup. The accumulation of these can lead to dryness, dullness, or damaged hair. Therefore, it becomes important to weekly, or as necessary, cleanse your hair with a clarifying shampoo. But this shampoo takes care of the hair at the same time as it keeps the hair hydrated. Furthermore, this product contains the patented OLAPLEX Bond Building Technology™. This exclusive system uses a single molecule (Bis-Aminopropyl Diglycol Dimaleate) to restore disulfide bonds, which are responsible for maintaining hair structure and strength. As a result, it rebuilds the hair at the same time. In conclusion, this shampoo not only purifies the scalp and hair but also restores and protects it. Thereafter, it will help reveal the healthiest hair. In fact, the hair is left soft, shiny, and manageable, with vibrant color clarity.