OLAPLEX weightless nourishing mask hydrates without weighing hair down. Designed for fine to medium hair, the mask uses patented technology to provide weightless moisture. After using this mask, hair cuticles are sealed, resulting in softer, smoother hair with added volume. It helps to nourish and revitalize hair without leaving a heavy or greasy residue, maintaining the hair's natural bounce and movement. Perfect for achieving a healthy-looking, voluminous mane.