Bring back the sheen. With Macadamia Oil and Collagen Polisher. Helps nurture dehydrated hair by deeply conditioning it with antioxidants and replenishing nutrients. Collagen works wonders on chemically and dull treated hair, helping infuse nutrients to promote elasticity and silkness thereby helping prevent breakage and split ends. Detangles thick hair on the spot while improving hair softness, shine and movement.