The mild shampoo effectively removes excess oil and dirt from your locks, protecting color vibrancy and making them last up to 33% longer. After 18 washes, 86% of your hair color will be preserved, with greater strength, softness, shine and manageability. Particularly ideal for red hair colors, it maintains 88% of the color between treatments. Your hair will stay radiant and fresh, with a reduced tonal shift, so you can put off that salon visit. Instructions for use: Apply to wet hair and massage into a lather. Rinse well and follow with conditioner.