The K18 Peptide Prep is my go-to shampoo for keeping my hair clean without stripping it. It removes buildup, balances the scalp, and preps your hair so the K18 mask can actually do its job. My hair always feels lighter, softer, and smoother after using it — like a fresh reset in a bottle! K18 Peptide Prep, K18 shampoo, hair detox shampoo, clarifying shampoo, bond repair haircare, peptide-powered hair treatment, clean beauty haircare, healthy hair routine, smooth shiny hair, K18 peptide repair LTKBeauty LTKHoliday