If you want to keep your long hair looking fresh, like Amanda Seyfried, we recommend Cristalliste by Kerastase. This entire line is specially formulated for long hair. How do they know what long hair needs? They are experts in hair care. This line combats the woes of long hair by targeting 2 problem areas: weighed down roots and dry ends! Use these products and your hair will look refreshed. We all know that when your hair looks good, you feel good too!