TRESEmme Keratin Smooth Shine Hair Oil is a nourishing hair treatment designed to provide ultimate shine, smoothness, and frizz control for all hair types. This lightweight, non-greasy formula is infused with keratin, a protein known for its hair-strengthening properties, which helps to restore and enhance the natural structure of the hair. It is formulated to deeply penetrate the hair shaft, repairing and replenishing moisture from root to tip, leaving your hair looking healthy, vibrant, and full of shine.