DAMAGE SHIELD pH Protective Shampoo is a color-safe, pH-optimized salon-grade cleanser formulated with the patented K18PEPTIDE™ to effectively cleanse while maintaining hair health and protecting hair from damage. Its pH-optimized system reduces excess cuticle swelling during washing—helping to prevent frizz, preserve color, and enhance shine—while a scalp microbiome-friendly formula and plant-derived surfactants deliver a powerful yet gentle clean suitable for frequent use.