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The K18 Peptide Prep PH Shampoo is microdosed with the patented K18PEPTIDE™, this powerful yet non-stripping formula boasts an optimized pH that is safe enough for everyday use if needed. This shampoo cleanses by breaking down and removing dirt + oil for optimal nourishment and manageability, while smoothing the hair surface. The K18 Peptide Prep PH Shampoo creates the perfect, cleansed foundation for healthy hair, as it provides your hair with an optimal clean. How To Use Safe to use every time you wash. Massage into hair, focusing on scalp. Thoroughly rinse. Repeat as needed.