This Peptide Prep PH Maintenance Shampoo is both color-safe and pH-optimized, containing K18PEPTIDE to cleanse hair effectively while maintaining its health, leaving it feeling strong, smooth, and healthy. With a pH range of 4.5-5.5, this shampoo helps prevent the hair cuticle from swelling excessively, reducing frizz and maintaining color, health, and shine. This is especially beneficial for damaged hair. Additionally, the optimized pH helps preserve the scalp microbiome and is gentle enough for daily use.