Matrix Biolage Delicate Care Shampoo Sensitized Color Treated Hair protects your hair color from fading and enhances shine. This is a set of 2 bottles, each bottle is 10 oz. When caring for your hair always remember to decrease the temperature of your water when washing. Wash hair less often, as over washing will fade color, dry hair, and cause breakage. Always gentle cleansing shampoos heat protecting products for styling, and brush hair prior to washing and prior to going to bed. Make sure to use hair treatments masks at least once a week for moisture, color protection, scalp health and shine enhancement depending on your hair type. Try to avoid products with harsh sulfates (SLS or SLES), harsh parabens, sodium chloride, and petrochemicals.