The K18 PEPTIDE PREP™ pH Maintenance Damage Shield Shampoo delivers a gentle yet effective cleanse with a pH-optimized, color-safe formula that helps maintain the hair’s natural moisture and scalp barrier. Designed for frequent professional use, this lightweight lather removes daily dirt and oil without disrupting the hair fiber. It strengthens the outer cuticle, preserves color, and supports a healthy foundation for styling or repair treatments. Compatible with the K18 Molecular Repair Mask, this shampoo won’t interfere with the action of the peptide, making it the perfect first step in a K18-powered routine. The 930 ml backbar format with pump is ideal for salon teams seeking gentle daily care with pro-level results.