The K18 PEPTIDE PREP™ Detox Shampoo in 930 ml professional size is a must-have for salon prep. Formulated with professional-grade cleansing agents and a pH-optimized, color-safe base, this shampoo removes product buildup, excess oils, dirt, pollutants, and metal ions from hard water—without stripping the hair. It creates the perfect canvas before any chemical service or treatment, including the K18 Molecular Repair Mask, by helping hair better absorb active ingredients. The lightweight lather rinses clean, leaving hair fresh, balanced, and ready for transformation.