DAMAGE SHIELD pH Protective ShampooColor safe, pH optimized cleansing shampoo formulated with K18PEPTIDE 8. 5 oz A color safe, pH optimized shampoo with the K18PEPTIDE to effectively cleanse without causing damage, for hair that feels strong, smooth and healthy. An optimized pH helps maintain the hair cuticle, which prevents excess water from entering the hair. Water entering the hair can cause damage, dullness, frizz, and tangling. This pH maintenance shampoo: Cleanses while smoothing