Biolage HydraSource Deep Treatment Pack - 300ml This multi-use deep treatment hair mask is specially formulated to transform extremely dry hair, providing intense hydration and nourishment. It instantly reduces breakage while leaving hair feeling softer, more manageable, and visibly healthier. Perfect for restoring moisture and vitality, it ensures your hair looks and feels its best. Hair feels softer, more manageable and looks and feels healthier. Highly concentrated in plant-based emollients. Packed with aloe and spirulina, which are known for strengthening hair and giving it a glossy sheen. Small but mighty, each pack contains at least four applications. Easy to squeeze, our packs are 77% lighter than a container of the same size and perfectly sealed for a fresh application each time. Infuses extremely dry hair with moisture and nourishment Light, easy to squeeze packaging 77% lighter than a container of the same size Pro Stylist Tip: No need to use conditioner, our highly concentrated formulas result in hair feeling more manageable and easier to detangle