The Dark Oil Lightweight Mask by Sebastian Professional, 150 ml, is a una nourishing mask that provides shine and softness to the hair without weighing it down. Its lightweight formula penetrates deeply, restructuring the hair fiber and protecting against frizz. Ideal for those who desire a una silky and shiny mane, this mask promotes una easy detangling and a healthy, vibrant appearance, making each treatment a high-quality professional experience.