This formula uses hyaluronic acid and other natural ingredients to support hair thickness, strength, and softness, particularly in fine and thin hair. Anti-aging properties help tired and lifeless hair look and feel younger, newer, and full of life. The leave-in treatment does not need to be washed out, won't leave any residue, and will continue to condition and protect the hair over time. It’s also ideal for anyone concerned about hair thinning or hair loss, and is color-safe.