What it is: Advanced formula Shea nut butter contains natural ingredients such as keratin and amino acids that surround penetrate and enrich the hair. What it does: A polymer fills, protects and strengthens hair fibers. Special stabilizers and UV ray screens protect hair dye pigments to lock in color. What else you need to know: Supple, shiny, healthy hair protected from environmental factors that cause fading. Restore vitality and strength to all chemically processed hair.